Phone abruptly dies under 20% battery - Sprint Galaxy Note 4 Q&A, Help & Troubleshooting

Phone totally goes black/dies when battery is 21% down to 10%. does this just mean the battery I have is bad? What replacement battery is best? I've read Anker makes a good set with charger. Thanks.

Samsung SDI batteries are the only batteries I've known to do this. When screen goes black, that should be a shutdown. Do you plug in your charger at that time? Mine actually actually showed 0%.
It's inconvenient for a battery to shutdown unexpectedly, while showing capacity remaining. I always replace Samsung OEM batteries with another brand. I found one that I liked so l went to Amazon and bought a second plus external charger from same brand. If looking at another alternative, just search MPJ and read the reviews. The battery and wall charger were on sale last week, maybe still.
If you're considering upgrading to sealed battery in unibody phone, you should consider the care required for such a phone to get battery to last. Sealed batteries are actually very similar in capability and ratings; no leap in tech but apparent shortcoming evident in Note7 embarrassment. Fast charging produces heat and steals life from battery's endurance down the road. Studies have shown since lithium batteries have no memory that you're actually prolonging the battery by slow charging without load or minimum load and bump charging rather than cycling battery to near 0% then back to 100%. Manufacturers don't tell you that because they prefer you wear your battery down in less than a year's time and consider another phone purchase.
Maybe Samsung would be better off today if consumers were more aware of how to prolong lithium batteries?
If you want your battery to last two years, bump charge it after 25% used as much as possible; it shouldn't even matter if you bump charge it 3x per day. Avoid fast charging and heat cycles. IOW, try not to use it while charging; the cycles should be short anyway.
Or, if you prefer to abuse a removable battery like the Note 4 and care less, pay about $15 and just replace the battery every year. 500 full cycles is all these batteries are currently rated for due to increased degradation with abuse. Mini cycles allows more of those cycles without degradation but you'll still have capacity when you need it to last a long day without charging.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SM-N910P using Tapatalk

Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.

Toyeboy said:
Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.
Click to expand...
Click to collapse
Try this, if you are rooted and have recovery wipe dalvik cache and cache. Power off phone and pull battery for like 5-10min. Hold the power button (with battery out) for like 1-2min. After letting battery sit out for 5-10min reboot and see what happens. If same instances occur. Your battery is dead just purchase a new one! Anker recommended!

Toyeboy said:
Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.
Click to expand...
Click to collapse
You're welcome.
Bump charging is partially charging before battery gets low. An example would be running the battery down 25% and charging without overcharging it.
Sent from my SM-N910P using Tapatalk

Had the same issue, bought a new Anker and issues resolved, the stock Samsung sucks!

I'm just glad there's a way to replace it that'll mean this phone can last a long time if I'm careful with it.

Yeah it must be these batteries. My mom has the Note 4 as well and hers does the same thing. As does mine

g355150 said:
Yeah it must be these batteries. My mom has the Note 4 as well and hers does the same thing. As does mine
Click to expand...
Click to collapse
Yes the stock Samsung batteries are horrible. They don't last very long then they start misrepresenting the battery statistics to the OS so you get the shutdowns at 20 or so %. I switched to a twenty$ Anker I found on Amazon over 6 months ago and never had the issue occur again. Even thy sprint techs will tell you if you ask them outright!
sent from my droid

Related

[Q] Mugen Battery strangeness...

This is my first post on here,but I've been lurking for ages I just bought a Mugen 3200mAh battery from MugenBattery.com.I already know about not having to condition it(lithium ion),so I ignored the instructions about cycling it and plugged it in and used it right away,and at first it seemed okay for around an hour(I didnt use it at all up to this point,just left it there until I needed it).When I went to unlock my Vibrant from suspend(pushing on the power button),the phone shut off and seemed like it was rebooting...but it just had the first screen you see(the one with Samsung and Vibrant on it) blinking on and off,even when I plugged in the charger in this state,all that popped up was a battery that also blinked on and off.The only way to get it going again was to pull and replace the battery,and it went back on again...then did this all over again when it went into suspend and I tried to unlock it.All the while,the battery stated it had around 75% power,so I have no idea what could have caused this.I put my cheep chinese 2700mAh battery back in and all was well again,so I know its the battery,not the phone.Anyone else have or seen this problem before?This is the most expensive battrery I have ever purchased for a phone at $88.00US....I hate to think that a cheep($20.00US) chinese battery has better quality control than it....
i think you need to charge it for 12 hours first.
Sent from my SGH-T959 using XDA App
Thanks,you were right! An overnight charge of around 12 hours did it.This is the first phone battery I had to do that with to get them to just work at all.Seems to work just fine now Again,thank you!
Let us know how long the battery is lasting once you get a few cycles please!
Yeah, you should run the battery dry, recharge, run dry, recharge and after a few cycles your life should improve.
Will do,just need a few days to do it,its lasting a looooong time!
XPLANE9 said:
Yeah, you should run the battery dry, recharge, run dry, recharge and after a few cycles your life should improve.
Click to expand...
Click to collapse
NO, NO, NO. PLEASE stop spreading bad information. This will HARM the battery, and will have 0 benefit. The only "benefit" you can get from this is that the battery meter on the phone's firmware will be calibrated to show a more correct remaining %. You can achieve the same by charging the phone 100% (overnight) going to clockwork recovery and selecting 'wipe battery stats'. Calibrated or not, the battery will last the same, regardless of what % left its showing.
Again for posterity, REPEATED DISCHARGING OF LI-ION BELOW 20% IS BAD FOR THE BATTERY, IT'S PHYSICALLY IMPOSSIBLE FOR IT TO GET BETTER.
I am having a similar issue with a battery that I ordered off of ebay. It's 3500mah.
When I plug it in it will turn off and get stuck in a boot loop on the vibrant screen, but if it is off then it won't turn on at all when plugged in. It has been plugged in for 9 hours so far and it doesn't even show the charging animation or anything.
Normal? Or is the battery defective?
Thanks.
Ok. After charging it overnight and still nothing, I'm going to assume its broken. Thanks.
dragon2knight said:
This is my first post on here,but I've been lurking for ages I just bought a Mugen 3200mAh battery from MugenBattery.com.I already know about not having to condition it(lithium ion),so I ignored the instructions about cycling it and plugged it in and used it right away,and at first it seemed okay for around an hour(I didnt use it at all up to this point,just left it there until I needed it).When I went to unlock my Vibrant from suspend(pushing on the power button),the phone shut off and seemed like it was rebooting...but it just had the first screen you see(the one with Samsung and Vibrant on it) blinking on and off,even when I plugged in the charger in this state,all that popped up was a battery that also blinked on and off.The only way to get it going again was to pull and replace the battery,and it went back on again...then did this all over again when it went into suspend and I tried to unlock it.All the while,the battery stated it had around 75% power,so I have no idea what could have caused this.I put my cheep chinese 2700mAh battery back in and all was well again,so I know its the battery,not the phone.Anyone else have or seen this problem before?This is the most expensive battrery I have ever purchased for a phone at $88.00US....I hate to think that a cheep($20.00US) chinese battery has better quality control than it....
Click to expand...
Click to collapse
Not to derail, but how much weight does it add, and how well does the back cover fit on that big Mugen?
it fits good...
lincoln131 said:
Not to derail, but how much weight does it add, and how well does the back cover fit on that big Mugen?
Click to expand...
Click to collapse
...and it does get a bit bulky,weight goes up to about double the amount,but it is so worth it,and then some!!I went from 6 hours on the stock battery to over 18 with the Mugen,and thats with heavy use(full brightness/live wallpaper,etc.).If you dont have access to a charger outside your home,this is a great buy,and you know the quality is there,unlike the uncertainty of the cheep chinese ones.Highly recommended!
The OS needs to learn your new battery. Just takes time and usage.
Sent from my SGH-T959 using XDA App
just bought 3000 mah
just bought one from accessory geeks, it came 70% charged, and am updating battery stats after a full charge, during stat recalibration, power is iffy. will update, and am considering mugen. any suggestions?
I am not so sure about your information
Mannymal said:
NO, NO, NO. PLEASE stop spreading bad information. This will HARM the battery, and will have 0 benefit. The only "benefit" you can get from this is that the battery meter on the phone's firmware will be calibrated to show a more correct remaining %. You can achieve the same by charging the phone 100% (overnight) going to clockwork recovery and selecting 'wipe battery stats'. Calibrated or not, the battery will last the same, regardless of what % left its showing.
Again for posterity, REPEATED DISCHARGING OF LI-ION BELOW 20% IS BAD FOR THE BATTERY, IT'S PHYSICALLY IMPOSSIBLE FOR IT TO GET BETTER.
Click to expand...
Click to collapse
I am not so sure about your information. This is what DHGate, a wholesale Chinese online store wrote about the 3000mah battery for Galaxy S [not MUGGEN!]
How to use a new battery:
1. First when you received the battery,. you need to release the power in the battery, just put it into your phone without charging.
2. After the battery power is out, please charge it about 12 hours in first three times.
3. So the battery will be actived. So you can just charge it about 5-7 hours when use in the further.
You can find the URL here:
http://www.dhgate.com/ems-free-i900...-back/p-ff8080812c87c8d9012c97f06d9410ea.html
I also recommend you to read the article "Everything You Need To Know About Bump Charging And Inconsistent Battery Drain" here:
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
So this a controversial matter, isn't it?
Roby
roby5167 said:
I am not so sure about your information. This is what DHGate, a wholesale Chinese online store wrote about the 3000mah battery for Galaxy S [not MUGGEN!]
How to use a new battery:
1. First when you received the battery,. you need to release the power in the battery, just put it into your phone without charging.
2. After the battery power is out, please charge it about 12 hours in first three times.
3. So the battery will be actived. So you can just charge it about 5-7 hours when use in the further.
You can find the URL here:
http://www.dhgate.com/ems-free-i900...-back/p-ff8080812c87c8d9012c97f06d9410ea.html
I also recommend you to read the article "Everything You Need To Know About Bump Charging And Inconsistent Battery Drain" here:
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
So this a controversial matter, isn't it?
Roby
Click to expand...
Click to collapse
No controversies at all. Your info from the link is outright wrong.
Mannymal is correct on this one.
I also have this battery. By the time I got it, Team Whiskeys roms had gotten good enough to where I didn't need an extended battery for day to day use (stock battery usually has 30-40% when i go to bed), but I do use it when I travel, so I don't have to worry about using it like crazy. The battery lasts a long time, probably like 2 or 3 days if I actually tried to drain it, at least. And it's definitely adds bulk, but it's reasonably well made and feels sturdy.
My only complaint is that I sometimes cover the speaker with my finger when I want to silence it real quick, and it doesn't work with this because the cover's so far from the speaker. But that's just my weird thing.
Also, yeah, don't kill your battery. No es bueno.
What is this? How do I read?
What is this? How do I read?
I use a seido innocell battery and it works great after a few over night charges. I get about 8 hours average of talk time. The battery is pretty small compared to the one accessory greeks sell. Even though the ah battery ia twenty five dollars, that is like the entry level name brand battery, it will lady you a while longer than the cheap ones on ebay, but I don't knower about the ones on ebay although I do know about the one ag sells skies down charging after about 45 percent charging. The seido is charging pretty fast for me and is half the price of a mugen, the next battery I'm going to buy will be the nugent, not because I need it, just
Cause I want to enjoy it.
Sent from my SGS-t959 using XDA Premium App
All batteries are so used it. . . .
All batteries are so used it. . . .

How to manage two batteries?

I've used my Galaxy Nexus for six months without using a secondary battery. At first I bought the extended battery with extended battery cover, but not only did that make my phone too 'thick', it also seemed that Galaxy Nexus is unable to know which battery is being used, so the battery life seemed incorrect when using the extended battery.
I think this has something to do with the battery info memory that the phone stores.
So I ended up buying a second battery, a replacement battery that is exactly the same as the one I originally have in my Nexus.
But since batteries are still different and are bound to perform differently, I wonder how to manage it correctly? Do I always have to drain the phone completely empty before switching batteries and charging the battery with a separate charging dock? I am worried that the phone considers performance of my battery A as the same as battery B, thus in time ending up with lesser battery life on both due to the confusion.
Are there any tips I should know? I need to use replacement batteries since at times I'm on an extended trips where I might not have the ability to charge the phone, but need to use the phone one way or another.
Thanks!
Ah..... I bought some batteries from Amazon. Cheap, like 20 bucks. They are charged, in my bag, if I run out of juice, I switch and start charging the other one. I still have a 3rd that I've never had to use. Hell I hardly use the 2nd one.
All the other stuff you mentioned, I guess I just don't care about all that. I just know they can hold a charge for quite a while. And that helps me when I need it.
Sent from my Galaxy Nexus using xda premium
kristovaher said:
I've used my Galaxy Nexus for six months without using a secondary battery. At first I bought the extended battery with extended battery cover, but not only did that make my phone too 'thick', it also seemed that Galaxy Nexus is unable to know which battery is being used, so the battery life seemed incorrect when using the extended battery.
I think this has something to do with the battery info memory that the phone stores.
So I ended up buying a second battery, a replacement battery that is exactly the same as the one I originally have in my Nexus.
But since batteries are still different and are bound to perform differently, I wonder how to manage it correctly? Do I always have to drain the phone completely empty before switching batteries and charging the battery with a separate charging dock? I am worried that the phone considers performance of my battery A as the same as battery B, thus in time ending up with lesser battery life on both due to the confusion.
Are there any tips I should know? I need to use replacement batteries since at times I'm on an extended trips where I might not have the ability to charge the phone, but need to use the phone one way or another.
Thanks!
Click to expand...
Click to collapse
These are Li-ion batteries.. DO NOT DRAIN THEM ALL THE WAY DOWN!
**This shortens the life of the battery**
It is better to charge them whenever you feel like it - these batteries and really almost all phone / laptop batteries these days prefers to be charged in shorter cycles and they also do not need to be charged all the way either - IE lithium ion batteries do not have a memory and do not need to be drained and charged fully.
These ideas come for the ancient Ni-Cad batteries famous in AA rechargeable and cordless phone and really old phones / laptops..
Chances are if your device is less than 5 years old it has Li-Ion batteries and the old school thought will actually shorten the battery life
Battery life meaning the amount of power it holds and the number of charge cycles...
pdxtechdoctor said:
These are Li-ion batteries.. DO NOT DRAIN THEM ALL THE WAY DOWN!
**This shortens the life of the battery**
It is better to charge them whenever you feel like it - these batteries and really almost all phone / laptop batteries these days prefers to be charged in shorter cycles and they also do not need to be charged all the way either - IE lithium ion batteries do not have a memory and do not need to be drained and charged fully.
These ideas come for the ancient Ni-Cad batteries famous in AA rechargeable and cordless phone and really old phones / laptops..
Chances are if your device is less than 5 years old it has Li-Ion batteries and the old school thought will actually shorten the battery life
Battery life meaning the amount of power it holds and the number of charge cycles...
Click to expand...
Click to collapse
I usually forget to unplug my phone when I go to sleep. Any bad effects?
Sent from my Galaxy Nexus using Tapatalk 2
daggerxXxsin said:
I usually forget to unplug my phone when I go to sleep. Any bad effects?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Nope you can do it all the time
Sent from my Galaxy Nexus using xda premium
pdxtechdoctor said:
These are Li-ion batteries.. DO NOT DRAIN THEM ALL THE WAY DOWN!
**This shortens the life of the battery**
It is better to charge them whenever you feel like it - these batteries and really almost all phone / laptop batteries these days prefers to be charged in shorter cycles and they also do not need to be charged all the way either - IE lithium ion batteries do not have a memory and do not need to be drained and charged fully.
These ideas come for the ancient Ni-Cad batteries famous in AA rechargeable and cordless phone and really old phones / laptops..
Chances are if your device is less than 5 years old it has Li-Ion batteries and the old school thought will actually shorten the battery life
Battery life meaning the amount of power it holds and the number of charge cycles...
Click to expand...
Click to collapse
You CAN drain them down, as much as the phone allows you. Only deep discharge will harm/kill them.
pdxtechdoctor said:
These are Li-ion batteries.. DO NOT DRAIN THEM ALL THE WAY DOWN!
**This shortens the life of the battery**
It is better to charge them whenever you feel like it - these batteries and really almost all phone / laptop batteries these days prefers to be charged in shorter cycles and they also do not need to be charged all the way either - IE lithium ion batteries do not have a memory and do not need to be drained and charged fully.
These ideas come for the ancient Ni-Cad batteries famous in AA rechargeable and cordless phone and really old phones / laptops..
Chances are if your device is less than 5 years old it has Li-Ion batteries and the old school thought will actually shorten the battery life
Battery life meaning the amount of power it holds and the number of charge cycles...
Click to expand...
Click to collapse
You cannot drain battery completely empty with a phone. Phone itself will not allow that to happen. Well, it is technically possible, but you need to do a lot more than just drain it until phone shuts down to make it happen.
My problem is that the phone stores information about battery. But if I use two different batteries (despite being the same type and capacity), during battery switches it will not know the battery life of the second battery and can be wrong (as it guesses it based on first battery). People usually delete batterystats file to reset this information, but that sounds pointless to do after every battery switch.
I guess I'll just discharge one battery to about 50% and then store it for just-in-case purposes.
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
Just a quick link to help out, if you want more info you'll have to Google it yourself
You can use 2 different size batteries without decreasing their usable life per charge.
Sent from my Galaxy Nexus using xda premium

Another Gold 3500 battery review...slightly scientific

Wanting more battery life and having reading a few positive reviews about the Gold 3500, I got one from Amazon (UK). The numbers 3500 vs 2500 mah indicate I should get around 40% extra battery life compared to stock but having played with RC cars and helicopters running LiPo packs I know that pack ratings aren't everything.
Actual battery capacity depends on the discharge rate, the more juice you pull the less the effective battery capacity you get with a lot of energy wasted in heat due to internal battery resistance. Fact of life with batteries of all chemistry.
My original battery is about 6 months old now, charged daily from anywhere between 0-50% remaining. In day to day use the Gold does seem to last longer based on my 6 months experience with the original battery but how much better is it?
I charged the batteries in my phone and turned the phone off once it hit 100% but kept the charger on as it seemed to charge for a bit longer.
Using my RC battery charger, I used the discharge function setting the low voltage cut off to 3V (standard for lithium batteries) and set the discharge rate at a constant 300 mah. Using a constant discharge rate may not be realistic but it does allow for a fair comparison, keep in mind that our phones power usage jumps up and down depending on use.
Results
-----------
6 month old stock battery rated at 2500 mah = 2364 mah (which is what I would expect from a battery with 180 cycles on it)
Brand new Gold 3500 rated at 3500 mah = 2524 mah (a bit disappointing but at least as good as a new stock battery)
Now the discharge rate can make a big difference to effective battery capacity, it might be that the 3500 mah rating on the Gold batteries was determined using a very low discharge rate or they discharged it to below 3V.....or its just a gold wrapper over a stock battery
Interesting to note that the stock Sammy battery is pretty true to its rated capacity, so the perceived increase in battery capacity I experienced with the Gold battery is probably just the difference between a 6 month old battery and a new one.
Oh well, at least I have a spare battery now and didn't pay a fortune for the Gold. The Gold does seem to last a bit longer than the 6 month old stock on so I am happy enough with it.
Notes:
Gold battery had been in use for 2 weeks to run it in
Only one discharge cycle was performed
Could be that I have a dud battery, you results may differ
In real day to day use the discharge properties of the Gold may result in a higher 'effective' capacity
Solar flares are the source of all coding errors
Fairies do live at the end of your garden :cyclops:
It's a shame i've read this post only two days after buying me one of those. Anyway, even if it won't last longer, i'd still have a spare battery right? So everything is not lost
nope, its a shame they rate it 3500mah if this is the case for all.
Mignon, maybe your can get a replacement from thrm and test again. Especially if you have a dud.
Do notice I notoce a significant increase in battery life after charging it past 100%. Probably placebo, I dont know.
Don't think I have a dud, in my experience lion batteries either work or don't. It's not a crap battery, it's just as good as stock but doesn't match the advertised 3500 mah rating.
And it's shiny gold so things aren't that bad
Sent from my GT-N7000 using xda premium
Well that sucks.....haha...i order a gold a week ago.....it should be here soon.....
I got 3500mah gold battery. I review it.
My rom is ultimate rom v5.1, and my stock battery was 11 months old.
Screen on time was always less than 4 hours.
Yesterday I got the gold battery, and I used it up to 1% without first charge, then I charged it 12 hours to initilize the battery.
So unpluged the charge, and tested it as the same usage. I always downclocked to 1000MHz, wifi on, no use 3g data, brightness is zero, bluetooth and gps is off. I downloaded 15 files and apps today, listened to music, did multi windows function, and almost used web browsing.
Now my battery is just 1%. Screen on time is over 5 and half hours. Obviously the battery was improved.
If official JB are released, the battery will be improved more.
But this is not made in Japan. This is made in China because Japanese is so strange on package.
Some of Chinese battery are so dangerous and may be fake, but this gold battery is good one.
Sent from my GT-N7000 using xda app-developers app
here are pics
Sent from my GT-N7000 using xda app-developers app
I'm satisfied with this.
Sent from my GT-N7000 using xda app-developers app
mingonn said:
Don't think I have a dud, in my experience lion batteries either work or don't. It's not a crap battery, it's just as good as stock but doesn't match the advertised 3500 mah rating.
And it's shiny gold so things aren't that bad
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
I dropped my stock and it works perfectly till 55% then it dies. Gonna throw it away soon. So some of the cells could be damaged. Its not either they work or dont m8.
@Mingnon thanks for your effortful tests.
@eeynjae, what are all apps spreading around those icons in your notification bar ?
I am pretty sure most mobile 3.7v phone batteries are single cell, only the mugen styled battery extender jobs that require a different back cover run two cells in parallel.
Remaining capacity is usually just a function of cell voltage so it's strange that it should just tank at 55%. Battery protection circuits generally prevent discharge past 3.0 volts so not sure what it's going on there.
Either way it sounds like you need a new battery, wouldn't risk recharging a damaged cell...
Sent from my GT-N7000 using xda premium
mingonn said:
I am pretty sure most mobile 3.7v phone batteries are single cell, only the mugen styled battery extender jobs that require a different back cover run two cells in parallel.
Remaining capacity is usually just a function of cell voltage so it's strange that it should just tank at 55%. Battery protection circuits generally prevent discharge past 3.0 volts so not sure what it's going on there.
Either way it sounds like you need a new battery, wouldn't risk recharging a damaged cell...
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
yeah its strange. Stuff started to happen at 50, whrn restarting bat percentage dropped to 10-15%. Without restartingbit would go down normally in beginning. Now after using it some time and dropping it its 55%.
Its definitely it either works or doesnt.
Anyway I dont think it's single cell.
i have the same battery bought it a few months back i'am very satisfied....
it's not a 40% extra time even framework it designed to work with less voltage since after using it below 15% i notice always fake meter value, when you keep your phone asleep for half an hour you will notice an increase in percentage. not accurate but runs fine, its a spare and a great replacement i dont care if it's slightly powerful than stock at least its the same size for 4 extra hours.. i never needed to change case nor a cover of anything its great
Sorry for my off-topic question, but i see in this topic there are advised people recently i bought a noname car charger for my Note, (specs: output 5.5V DC, 800mAh) - is this charger good for the Note or it would damage it? (i read somewhere that the original car charger's output is 5V... this difference of 0.5V has any importance?) Thanks.
mingonn said:
Results
-----------
6 month old stock battery rated at 2500 mah = 2364 mah (which is what I would expect from a battery with 180 cycles on it)
Brand new Gold 3500 rated at 3500 mah = 2524 mah (a bit disappointing but at least as good as a new stock battery)
Click to expand...
Click to collapse
Thanks for your time and efforts - your results are similar to my amateurish measurements performed twice and reported on the other 3500 battery thread. Having no device to test the actual capacity, I just used the continuous video playback in plane mode with minimal backlight. The time to full discharge was almost identical in both cases.
zetlorf said:
Sorry for my off-topic question, but i see in this topic there are advised people recently i bought a noname car charger for my Note, (specs: output 5.5V DC, 800mAh) - is this charger good for the Note or it would damage it? (i read somewhere that the original car charger's output is 5V... this difference of 0.5V has any importance?) Thanks.
Click to expand...
Click to collapse
Nobody?
zetlorf said:
Nobody?
Click to expand...
Click to collapse
It won't damage your phone, but if you are going to use it as a gps while charging, it will probably keep dranig the battery, 800mah is not enough to charge it while screen is on and gps is running
baz77 said:
I dropped my stock and it works perfectly till 55% then it dies. Gonna throw it away soon. So some of the cells could be damaged. Its not either they work or dont m8.
Click to expand...
Click to collapse
Some of the cells? Its a 3. 7v Li There is only one cell:silly:
i have been disapointed by this type of battery
hardtheory said:
i have been disapointed by this type of battery
Click to expand...
Click to collapse
Why is that?
After i've received mine, i've never ran out of battery during my day. Definitively improved the usage of my phone.

Worried about unremovable battery

This will be my first phone with a battery I cant replace. Batteries lose a lot of capacity and will be down to something like 75% after 12-14 months. Has anyone got a battery replaced on previous models? How much did it cost? What is the battery capacity loss like in general on HTC phones? Thanks
Sent from my LG-D855 using XDA-Developers mobile app
gsw5700 said:
This will be my first phone with a battery I cant replace. Batteries lose a lot of capacity and will be down to something like 75% after 12-14 months. Has anyone got a battery replaced on previous models? How much did it cost? What is the battery capacity loss like in general on HTC phones? Thanks
Sent from my LG-D855 using XDA-Developers mobile app
Click to expand...
Click to collapse
The battery on my m9 has kept itself together well considering it's a year old. I have flashed the sense 8 launcher and now the battery is as good as when I first got it. I wouldn't be worried bout that mate
I haven't had a removable battery since the a Nexus 5. My Nexus 5 turned into a media player and it holds a charge for about 3 days easy. 5 days when I rarely touch it. It's almost going on 3 years old. I don't miss a removable battery all that much as I thought I would.
Sent from my SM-G935T using Tapatalk
You also have QC 3.0 and the HTC charger has some cooling tech, so the battery should have a better lifespan than previous iterations anyway.
the point of having replacing battery is to carry one with you at all times to replace it, right?
I think, if you're gonna carry something i would rather have a power bank, less dangerous to have around and takes way more battery and you don't have to remove the battery to use, yes it has to be connect to the phone, but hey, everything has pros and cons.
I prefer the power bank and i also never had to change a battery because it lost quality, but that's me
No, I replace my battery every 6 months as batteries lose capacity, after replacing it, I always get a big increase in battery life, after 1-2 years, it may only holding 60-70% of original charge
Sent from my LG-D855 using XDA-Developers mobile app
have you tried calibrating your battery before replacing it with a new one?
gsw5700 said:
No, I replace my battery every 6 months as batteries lose capacity, after replacing it, I always get a big increase in battery life, after 1-2 years, it may only holding 60-70% of original charge
Sent from my LG-D855 using XDA-Developers mobile app
Click to expand...
Click to collapse
You must be doing a lot of charge and discharge cycles a day to wear it out that quick...
So I've had my M7 since I pre-ordered it April of 2013. Still the original battery. If I unplug the phone at 8am and use it normally throughout the day (occasionally browsing reddit/YouTube, texts/messenger/emails during downtime), it probably lasts 8 ish hours without charging it at all.
Not sure if that helps. Can definitely tell it's degraded a bit since I first got it.
~ Sent from the HTC One ~
codeglitch said:
the point of having replacing battery is to carry one with you at all times to replace it, right?
I think, if you're gonna carry something i would rather have a power bank, less dangerous to have around and takes way more battery and you don't have to remove the battery to use, yes it has to be connect to the phone, but hey, everything has pros and cons.
I prefer the power bank and i also never had to change a battery because it lost quality, but that's me
Click to expand...
Click to collapse
Your phone doesn't get to 100% in 5 seconds with a power bank, a replaceable battery does. A replaceable battery is a lot lighter and smaller than a power bank. And who wants to use a phone with something tethered to it?
av911 said:
Your phone doesn't get to 100% in 5 seconds with a power bank, a replaceable battery does. A replaceable battery is a lot lighter and smaller than a power bank. And who wants to use a phone with something tethered to it?
Click to expand...
Click to collapse
i said....
you don't have to remove the battery to use, yes it has to be connect to the phone, but hey, everything has pros and cons.
Click to expand...
Click to collapse
if you're using the phone you're most likely not moving a lot either, which means you can easy stay still and connected to the power bank, there are small power banks and some even give you quick charge option, but like i said or meant to say, use whatever you want and think it's better for you
My M8 was purchased on day one and after two years of use it's still going very strong. I don't notice any significant differences from my initial impressions.
Sent from my HTC One_M8 using XDA-Developers mobile app
codeglitch said:
have you tried calibrating your battery before replacing it with a new one?
Click to expand...
Click to collapse
How do you calibrate battery?
M7 three years old. Always get 4 hours plus sot. Even got seven when reading heavy. I wouldn't worry, just don't charge all night, buy a timer.
Attached the wrong one, even though it was good too.
Batteries are odd things, especially Li-polymer batteries.
Like above, my M7 is 3 years old.
I get 14-20 hours average out of my phone with a LOT of web/email and poor coverage (mentioned because it sucks more juice in thinner coverage). Currently I'm on 13+ hours and have 17% left.
The real damage to these batteries is # of charging cycles and heat. Heat prematurely wears out the chemicals and each time you plug into charge you're killing one of a limited amount of charge cycles.
You should not see a true decrease in capacity as these don't have memory effect.
I'm a horrible user in that I often plug into charge when in the car and tend to run my battery way down before recharging, both of which are hard on a battery.
TLR - you'll be fine
shankly1985 said:
How do you calibrate battery?
Click to expand...
Click to collapse
Here are some directions: (YMMV)
http://android-revolution-hd.blogspot.com/2015/10/how-to-recalibrate-battery-life-on-htc.html
shankly1985 said:
How do you calibrate battery?
Click to expand...
Click to collapse
When you get a new phone there is not need to worry about this at the beginning, but after 2-3 months you should think about doing a full discharge, from 100% until it turns off, even after it turns off i don't plug it right in, i try to boot it 2 or 3 times and let it turn off by it self again, then just charge it 100% again, this should help is some cases (do this procedure only once a month maybe, there is no need to do it all the time because it will put strain in the battery and if you do it a lot you will also lose battery life).
Another thing to keep in mind is that tests have shown that if you can, you should charge your phone at +-50% (instead of 20% or less) until 90-98%~, of course not everyone has the time for this but it's something that helps maintain battery life.
Battery's also need exercise and keeping the battery plugged in a lot won't help, if you can avoiding stressing the battery with high temperatures as this also reduces the battery life.
There might be a few more tips for battery's but this is all I remember/know for now, hope it helps :good:

Couple Battery Questions

Got 2 new batteries and I want to keep them for a while, so I have a few questions:
1. Is the OEM fast-charge charger and cable okay to use every day, or will it degrade the battery faster than a slower/regular speed charger/cable?
2. Since I have 2 batteries now, which is the best way to charge them both up? charge 1 in the phone, then swap and charge the other in the phone? Or buy a battery charger (and if so, which one)?
3. Any other helps regarding the chargers and/or cables?​Thank you for your help.
Faster charging will always generate more heat and put more stress on the battery, so slower charging would be better for a battery's lifespan, but I don't think you'll see a huge difference within two years.
By far the fastest way to keep going is having the second battery charged in an external battery charger and then swap when the other battery gets low, followed by charging the low battery in the external charger. Doing it this way also puts the least wear-and-tear on the phone's charging port since you'll rarely use it. I use LG's OEM external battery charging cradle (BCK-5200), but it may be hard to find nowadays. There's currently a used one up for sale in an auction by an American seller on eBay, and there are new ones from a South Korean seller for a higher fixed price. I wouldn't pay more than $25 for one. As for charging time, for me, it takes about 4 hours to charge my MaxxxJuice 4100 mAh batteries from ~5–10% to full. External chargers do not fast-charge, so you'll never put too much stress on the battery that way. Of course, swapping may not be for everyone as it may be inconvenient to take a case off and put it back on.
Unlike the older microUSB cables, bad USB Type-C cables that are not built to certain specifications can draw higher currents and destroy the devices they are charging. A few years ago, a Google engineer reviewed lots of USB-C cables on Amazon to give his view on those. If you need a third-party cable, make sure you get one from a reputable source with good reviews. My preferred USB cable is Anker's Powerline+ due to their extra strength/thickness, and I don't need much flexibility/twistability in my cables. Also, I like how the USB-C end connector is made of one single piece where you don't see any connecting lines around the middle (you can see an example here).
Other thoughts:
As long as there is a supply of extra batteries around and you can afford to buy them when the time comes, then you shouldn't worry much about how you charge your phone. In my opinion, that is one of the main selling points of having a hand-removable battery. I imagine a paranoid person on a phone with a sealed battery would be trying to keep the battery level between 40 and 80% at all times. So really, the only thing to worry about is having a decent USB-C cable and making sure the phone's charging port is clean and not worn out.
In case you are really interested on my detailed charging habits and related things on my V20, I discussed them while reviewing my batteries a while back on the V20 Subreddit.
Thanks!
C D said:
Faster charging will always generate more heat and put more stress on the battery, so slower charging would be better for a battery's lifespan, but I don't think you'll see a huge difference within two years.
By far the fastest way to keep going is having the second battery charged in an external battery charger and then swap when the other battery gets low, followed by charging the low battery in the external charger. Doing it this way also puts the least wear-and-tear on the phone's charging port since you'll rarely use it. I use LG's OEM external battery charging cradle (BCK-5200), but it may be hard to find nowadays. There's currently a used one up for sale in an auction by an American seller on eBay, and there are new ones from a South Korean seller for a higher fixed price. I wouldn't pay more than $25 for one. As for charging time, for me, it takes about 4 hours to charge my MaxxxJuice 4100 mAh batteries from ~5–10% to full. External chargers do not fast-charge, so you'll never put too much stress on the battery that way. Of course, swapping may not be for everyone as it may be inconvenient to take a case off and put it back on.
Unlike the older microUSB cables, bad USB Type-C cables that are not built to certain specifications can draw higher currents and destroy the devices they are charging. A few years ago, a Google engineer reviewed lots of USB-C cables on Amazon to give his view on those. If you need a third-party cable, make sure you get one from a reputable source with good reviews. My preferred USB cable is Anker's Powerline+ due to their extra strength/thickness, and I don't need much flexibility/twistability in my cables. Also, I like how the USB-C end connector is made of one single piece where you don't see any connecting lines around the middle (you can see an example here).
Other thoughts:
As long as there is a supply of extra batteries around and you can afford to buy them when the time comes, then you shouldn't worry much about how you charge your phone. In my opinion, that is one of the main selling points of having a hand-removable battery. I imagine a paranoid person on a phone with a sealed battery would be trying to keep the battery level between 40 and 80% at all times. So really, the only thing to worry about is having a decent USB-C cable and making sure the phone's charging port is clean and not worn out.
In case you are really interested on my detailed charging habits and related things on my V20, I discussed them while reviewing my batteries a while back on the V20 Subreddit.
Click to expand...
Click to collapse
On that Subreddit, you mentioned you cycled a couple batteries. Did you have to do the whole fully charge and fully drain thing each time you switched to the new battery, or just when you first bought the batteries?
Would like to know the answer to ^this^ as well.
baldybill said:
On that Subreddit, you mentioned you cycled a couple batteries. Did you have to do the whole fully charge and fully drain thing each time you switched to the new battery, or just when you first bought the batteries?
Click to expand...
Click to collapse
pistacios said:
Would like to know the answer to ^this^ as well.
Click to expand...
Click to collapse
No, I only did the full cycle with the first battery three times, and that was it. The only reason to do that is for the Android software of the phone to get a better sense of your battery level. Of course, it won't be as accurate the longer you go swapping between batteries as undoubtedly they will differ a bit in capacity over time. But fully running down and then fully charging a battery isn't good for its lifespan if you do it too often. The only other times you'd have to really repeat the calibration is when switching to a battery with a different capacity or switching ROMs / doing a factory reset.
C D said:
No, I only did the full cycle with the first battery three times, and that was it. The only reason to do that is for the Android software of the phone to get a better sense of your battery level. Of course, it won't be as accurate the longer you go swapping between batteries as undoubtedly they will differ a bit in capacity over time. But fully running down and then fully charging a battery isn't good for its lifespan if you do it too often. The only other times you'd have to really repeat the calibration is when switching to a battery with a different capacity or switching ROMs / doing a factory reset.
Click to expand...
Click to collapse
So, I got a 4000 Powerbear that I'm calibrating now.
I'm also getting a 4100 Perfine.
Are they close enough that I shouldn't have to recalibrate for the 4100?
baldybill said:
So, I got a 4000 Powerbear that I'm calibrating now.
I'm also getting a 4100 Perfine.
Are they close enough that I shouldn't have to recalibrate for the 4100?
Click to expand...
Click to collapse
Most likely yes. I imagine most of these 4000–4300 mAh Lithium polymer batteries that started popping up this year are very similar, and some may just be rebranded from the same common factory source. Barring a defective battery, if the two batteries had a significant difference in capacity, you could see things like early shutdowns on the smaller capacity one or being stuck at a low percentage for an unusually long amount of time on the larger capacity one.
Great info.
So it looks like all other batteries on hand should not be put into rotation with the higher capacity batteries to avoid inaccurate readings in Android.
pistacios said:
Great info.
So it looks like all other batteries on hand should not be put into rotation with the higher capacity batteries to avoid inaccurate readings in Android.
Click to expand...
Click to collapse
Pretty much this. I suppose one could try keeping separate copies of the batterystats.bin file from /data/system when rooted and swap them alongside the different batteries. But that sounds like too much of a pain to deal with, even if it works.
C D said:
Most likely yes. I imagine most of these 4000–4300 mAh Lithium polymer batteries that started popping up this year are very similar, and some may just be rebranded from the same common factory source. Barring a defective battery, if the two batteries had a significant difference in capacity, you could see things like early shutdowns on the smaller capacity one or being stuck at a low percentage for an unusually long amount of time on the larger capacity one.
Click to expand...
Click to collapse
pistacios said:
Great info.
So it looks like all other batteries on hand should not be put into rotation with the higher capacity batteries to avoid inaccurate readings in Android.
Click to expand...
Click to collapse
C D said:
Pretty much this. I suppose one could try keeping separate copies of the batterystats.bin file from /data/system when rooted and swap them alongside the different batteries. But that sounds like too much of a pain to deal with, even if it works.
Click to expand...
Click to collapse
Just to add to this, I found your pics @C D for the charging instructions and there's a note about using 3200mah batteries along with the 4100mah batteries.
pistacios said:
Just to add to this, I found your pics @C D for the charging instructions and there's a note about using 3200mah batteries along with the 4100mah batteries.
Click to expand...
Click to collapse
Does that mean that if you switch between the batteries, they'll both last as long as they should (the 4100 longer time than the orig. 3200), but the system's percent will be wrong?
My understanding is that if you calibrate the phone to recognize the full 4100mah and then use a 3200mah battery, it will shut down early (but still use the full 3200mah).
Correct. They are warning you that swapping between batteries of significantly different capacities will throw off the accuracy of the phone's battery percentage indicator at all times, especially at the high and low percent values (so an early shutdown can happen when the smaller capacity battery is used). Of course, this won't affect either battery's true capacity.
I'd pay good money for a system that can correctly handle different battery capacities of any amount, but we all know where the future of hand-removable batteries has been heading for the last 3–4 years.
Does anyone charge their phone ONLY to 80 % or so?
If so, what apps do you use to limit this? Any other tips/advice?
baldybill said:
Does anyone charge their phone ONLY to 80 % or so?
If so, what apps do you use to limit this? Any other tips/advice?
Click to expand...
Click to collapse
I use AccuBattery and it has a notification sound that plays when you hit the target charge percentage, but it's still up to you to remove the phone from the charger or else it continues charging to 100%.
Since our phones have replaceable batteries, I haven't made any special effort to take care of them. I have a pair of May '17 OEM 3200 mAh batteries that are going to get switched out for a pair of new 4100+ mAh Li-Po batteries once I get my second V20 set up. Every charger I use is QuickCharge 3.0 certified except for USB on my PCs and my Pioneer Android Auto headunit USB connection in one car. The vast majority of the time, I charge via QC 3.0. Pretty much the only time I let the battery charge via PC USB is when I actually need to transfer files between the phone and computer.
Before my phone started having issues in the past month with a phantom power drain, I would let the phone charge from 30-40% to 80-90% and then remove it from the charger at night before going to sleep. In the last half year as the batteries have aged, I've let it get up to between 90-95% before unplugging. For the past month, I've been charging the phone four times a day from 40-100% to combat the power drain issue, but that comes with knowing that I don't care about these old batteries or the state of the firmware on this first V20 anymore.
As for when I swapped the two batteries I have, that entirely depended on when I actually ran one down so far that I needed a 0-100% battery swap, which could be months at a time and usually happened while on vacation or away from a charging source for a longer period of time than what my usual home/car/work routine allows.

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