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Hi all
Just after an opinion really, also see if anyone else is having a similar problem with there battery??
I've had my desire now since April, and recently been having issues with the battery. When charging it, the Orange LED charge light will turn green at around 94% charge and still climb to 100%. Then when its charged (for a whole night) I unplug it, battery states 100% charge for about a minute, then drops straight to 93%. I've tried it with a few roms now, standard Rom, froyo, now on pays bravesoul release, and they all do the same...
I've tried resetting battery charge status in recovery console too, but made no difference...
Surely the standard battery can't be on its way out already??
*edit*
Info in my Sig is a bit out of date, so ignore what it says lol! Running latest pays bravesoul release as mentioned, not done any tweaks to this Rom yet!
Install JuicePlotter and then monitor the usage
report back
it should show whats using the battery when it takes a huge decrease
AFAIK the charging stops after reaching 100% (probably as safety measure)
and there doesn't seem to be a trickle charge function to keep it at 100%. This is actually a good thing 'cause Li-ion and Li-poly batteries don't like to stay in the highest or lowest regions too long.
So...charging stops at 100% and after that you're running on battery. Try charging it and unplug the charger when 100% is reached (look at the actual %, not the LED. You will notice it'll go down at the same rate it always does and no jump to 93%.
I think it charges to 100%, then allows itself to drop back to 90% (the phone still shows 100% though) and when you unplug the phone from the wall, it will drop back to the "actual charge".
If you plug it back in, it should start to charge back to 100%.
Hey guys, I rooted and installed mikfroyo 4.2 on my evo. I read a bit and thought I had to use recovery to wipe battery data. I did this and since then I have noticed that the battery usage/percent is off.
Ex: 100-90% goes very quickly, then 80% takes much longer.
I just plugged it into my charger at 29% and about 5 mins later its saying 56%.
The battery lasts long enough so I figure the battery is good.
What should I do aside from wiping the battery data? Do I have to calibrate it somehow?
Thanks
Sent from my PC36100 using XDA App
100% - 90% drop off is normal. Should normalize after 80%. There are some battery tricks n tips to charging if you look around. Pretty much consists of charging to full then turning off and charging some more then turn on, turn off and charge some more.
There are hundreds, if not thousands, of posts on this subject. The issue is battery longevity. When the battery reaches 100%, it stops charging (to reduce heat and increase battery life span). It only starts charging again after the battery drops below 90%. So your 100% display is lying to you.
There is a custom kernel that continues to charge the battery at a lower rate once it reaches 100%. You can find it here...
http://forum.xda-developers.com/showthread.php?t=876590
I'm using it with the Evo-NonSense ROM and it's amazing how much better battery life is. I've had the battery meter read 100% for close to an hour after unplugging.
I suppose it's possible I may have to replace the battery sooner due to using this kernel, but that's a price I'm willing to pay.
BR
The 100% > 90% is due to the kernel not allowing a trickle charge. Meaning once your phone hits 100% it switches to battery. It doesn't start charging again till it hits 90% or so. So when you unplug your phone, even if it says 100%, it is actually at 90%.
There are kernels that enable trickle charge but there is a debate going around as to whether or not it damages the phone.
sekigah84 said:
The 100% > 90% is due to the kernel not allowing a trickle charge. Meaning once your phone hits 100% it switches to battery. It doesn't start charging again till it hits 90% or so. So when you unplug your phone, even if it says 100%, it is actually at 90%.
There are kernels that enable trickle charge but there is a debate going around as to whether or not it damages the phone.
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It could be anywhere from 100% - 90% not definately gonna be 90%
A drop of Chuck Norris's semen was placed on the IPhone. We now have the Htc Evo.
Crossrocker said:
It could be anywhere from 100% - 90% not definately gonna be 90%
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I've been really confused lately because the meter says 100% when plugged in but the moment I unplug it in the A.M. it cuts over to 92%-96%... this makes sense now.
I'm not sure if this has been posted yet, but when I unplug my phone after charging it overnight, it gets to 90% or so in around 30 minutes without use, and goes down at a fast rate throughout the day. If I charge it and unplug it exactly when it hits 100%, I can use the phone fairly regularly and it will take around 2 hours to get down to 90%, and depletes from there very slowly. What's the reason for this, and is there any way I can get the same battery life when leaving the phone overnight?
Running CM7 with incredikernel, although my phone has been this way with countless ROMs and kernels.
pickleman77 said:
I'm not sure if this has been posted yet, but when I unplug my phone after charging it overnight, it gets to 90% or so in around 30 minutes without use, and goes down at a fast rate throughout the day. If I charge it and unplug it exactly when it hits 100%, I can use the phone fairly regularly and it will take around 2 hours to get down to 90%, and depletes from there very slowly. What's the reason for this, and is there any way I can get the same battery life when leaving the phone overnight?
Running CM7 with incredikernel, although my phone has been this way with countless ROMs and kernels.
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Short answer: Yes, you will see better battery life, and no there is not really any foolproof way to make it work if you leave it on the charger after it hits 100%.
Long answer: The Incredible has a battery saver feature built in that prevents over charging by cutting off charge to the battery when it hits 100% (actually 96% according to the people who figured all this out and are way smarter than I am) and doesn't let it start to recharge until it hits 80%. The reason, when you take it off in the morning, it drops so fast is because it is no longer actually at 100%, but has dropped to a legitimate ~90% since having hit the "100%" threshold.
There are some kernels out there that do allow "trickle charging" meaning they keep the phone at a legit 100%, but I don't think many have seen much success using them with the Incredible.
I get around this by charging a bit at night (using anywhere between 80-100%), leaving it off the charger until morning (I usually drop only around 4-5% per 8 hour night) and plug it back in while I get ready and eat breakfast. This usually puts me around 95-100% depending how much I was able to charge the night before and seems to be a much more simple way to handle it than bump charging in my opinion.
search first. It has been asked multiple times.
unreal2k said:
search first. It has been asked multiple times.
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I've seen similar topics regarding the quick drop from 100 to 90%, but the battery life as a whole seems to be much longer when it's taken off the charger immediately after it hits 100%. There's so many topics on here, I can't find exactly what I'm talking about, so it's difficult to judge. I'll definitely try the tip in the second post though. Thanks!
It will charge it up to 100% but it won't stay there if you keep it in. It'll let the phone die down to 90% then it'll keep it at that level.
So yes if you unplug it when it first hits 100% you will have a full 100% battery. If you let it sit for much longer than it'll be at 90%
It's been said that leaving it on charger for a while after fully charged messes with the battery meter.
I always bump charge. Charge it full while on then power off and charge till green lights on. Def gets me more batt life. Im getting 24+ hours on a single charge under normal usage with UD 3.1.1.
sent from my Ultimate 2.33 Incredible
http://forum.xda-developers.com/showthread.php?t=871051&highlight=lying
That should help you out!
Now I hesitated to post this until I was fairly sure.
So after about 8 trials over a few weeks and a 100% success rate, I think I can safely say this.
There is a way to quick charge your phone in 10~20 minutes from 0~10% to 75~90%.
I've a samsung vibrant, stock charger, stock battery, and nextgenv1.
(Not tried on other devices yet)
The trick is simple, when ur phones relatively low on power...
1) turn it off
2) plug into charger
3) wait at least 5 minutes
4) while still plugged in and charging, turn phone on
It should then be charged (not 100%, but 75~90% is usually what I get)
I've yet to test the time you charge vs final output charge, or the effects of starting at different charges.
Weird right? After asking my tech, physics, and biology teacher, the idea is that when the phone charges it fills in each battery cell with power, so while its doing the filling and you turn the phone on, all the cells open up so that a flush of energy can come in. Obviously this doesn't sound too good for the battery, so use this at your own peril. I'm just saying its been working every time, and no problems have come up thus far.
I dont go on here often so if this is already common knowledge, let me know and I'll delete this thread.
If not, try it out and see if it works!
Most phones come with single cell batteries.
The phone has a capacity/voltage map which it uses to work out how much juice is left in the cell, ie at xV it's y% full.
The battery is charged using approx 4.5V, so I'd imagine when you turn your phone on it's getting a false reading of the battery's voltage and that's why it's showing as charged more than it actually is.
use at your own peril indeed--theres gotta be some inaccuracies there
xaccers said:
Most phones come with single cell batteries.
The phone has a capacity/voltage map which it uses to work out how much juice is left in the cell, ie at xV it's y% full.
The battery is charged using approx 4.5V, so I'd imagine when you turn your phone on it's getting a false reading of the battery's voltage and that's why it's showing as charged more than it actually is.
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Yup, my thoughts exactly. But as it turns out, it lasts for the same amount of time as it usually would at that percentage. 1-2 days.
just get a 2A (2000 mAh) charger, and then you'll charge really fast
i use that in my car every day
So you're saying that letting the phone charge for 5 minutes gives at least 75% charge, then you unplug and run for 1-2 days?
That would take charging the battery with 15A which is 12C (the Vibrant's battery is 1250mAh isn't it?)
That'd be 13.5A down your usb lead from a PSU that should only have a 0.7A output.
I call shenanigans I'm afraid, your phone is fibbing to you
i'm pretty sure that quick charging your phone when it is not made to will decrease your overall battery life/ capacity.
xaccers said:
So you're saying that letting the phone charge for 5 minutes gives at least 75% charge, then you unplug and run for 1-2 days?
That would take charging the battery with 15A which is 12C (the Vibrant's battery is 1250mAh isn't it?)
That'd be 13.5A down your usb lead from a PSU that should only have a 0.7A output.
I call shenanigans I'm afraid, your phone is fibbing to you
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Yup. 1500mah.
I'm just saying that's what the phone's saying ya know. I know next to nothing about battery output, storage, etc.
From 0% as in so drained it can't turn on, to plug in, to turn on while plugged in for a few seconds, it said 35%.
So phone's probably lying as u said, but have yet to test how long it lasts.
Theoretically, it should only lasts a few minutes right? Max of 10 minutes r so I'd imagine? (Yes, I'm asking for ur opinion)
Oh, and I use a live wallpaper too, on 24/7. Just a bit more power drain.
*update*
3 minutes later after I restarted it again, just to check if it was a complete dud reading.
Made mistake of not unplugging.
It's reading 51 percent now......6 minutes of charging.
-going to check how long this lasts.
^Least I know how to make my phone think its good^
i have a 1A charger in my car... gets my phone nice and hot and wont even charge my friends olllllddd android phone..
House3272 said:
Yup, my thoughts exactly. But as it turns out, it lasts for the same amount of time as it usually would at that percentage. 1-2 days.
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Then obviously when it's reading 10% it's not actually that low. It's more likely that it's a mis-reading and is actually at ~80%. You run through your steps and in ten minutes you have an accurate reading of ~90%
No big mystery, batteries don't always report accurate information. Try flashing a different ROM, use another battery, try a battery calibration app. You'll soon start seeing different results.
Failing that, submit your findings to a Science Journal and wait for the $1m reward that comes with the Nobel Prize that is sure to follow!
DirkGently1 said:
Then obviously when it's reading 10% it's not actually that low. It's more likely that it's a mis-reading and is actually at ~80%. You run through your steps and in ten minutes you have an accurate reading of ~90%
No big mystery, batteries don't always report accurate information. Try flashing a different ROM, use another battery, try a battery calibration app. You'll soon start seeing different results.
Failing that, submit your findings to a Science Journal and wait for the $1m reward that comes with the Nobel Prize that is sure to follow!
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haha yeah! even Samsung still researching how to charge phone faster (trying to use new design battery) and his saying he found a loop hole around it? lol~
obviously not ~.~
As others have stated, the battery information is just probably inaccurate. You can recalibrate it by draining the battery completely and recharging to full.
Hey guys I'm often a lurker on here and don't post a whole lot but came across this article and found it interesting. Thought I'd share... Also, I like to leave my HTC ONE plugged in on my desk stand at work with the "Daydream" clock function running (basically using my phone as a desk clock). Do you think leaving it plugged in charging all day running this clock is doing any damage to my battery? It of course fills up and charges to 100% pretty quickly because I never really let it get below 80%. Below is my charging habit...
1. Charges all night at my bedside
2. Take it off the charger in the morning while getting ready for work and my drive
3. Get to work, plug it in for 6-7 hours running Daydream
4. Take it off the charger and go home... (off the charger for about 4-5 hours in the evening)
5. Go to bed, plug it in, and start all over again...
Oh and here's the article :lol:
http://gizmodo.com/going-from-all-the-way-full-to-all-the-way-empty-wont-h-618834847
How To Take Care of Your Smartphone Battery the Right Way
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Your smartphone is a minor miracle, a pocket-sized computer that can fulfill almost every whim. But none of its superpowers matter a bit if it runs out of juice. With removable batteries becoming more and more rare, you've got to take good care of the one you got. Fortunately, it's not to hard keep the lithium-ion powering your everything machine happy if you follow a few simple rules.
Obviously, the first rule for extending your battery life is not using up all your battery life playing candy crush and walking around with Wi-Fi and GPS enabled when you're not using either and really, really need your phone to last that extra hour. But aside from that, there are some basic rules for care and charging, and they're the simplest baseline for a healthy battery.
Top it off
You may vaguely recall hearing something about rechargeable batteries and the "memory effect." You know, that if you don't "teach" your rechargeable batteries their full potential by taking them from totally full to totally empty, they'll "forget" part of their capacity. Well forget all that. Right now. It's wrong.
To get the most out of a lithium-ion battery, you should try to keep it north of 50 percent as much as possible. For the most part going from all the way full to all the way empty won't help; in fact, it'll do a little damage if you do it too often. That said, it's smart to do one full discharge about once a month for "calibration," but don't do it all the time. Running the whole gamut on a regular basis won't make your battery explode or anything, but it will shorten its lifespan.
So if you're really particular about optimizing your battery's life, you should try to go from around 40 percent to around 80 percent in one go, and then back down whenever possible. A bunch of tiny charges isn't as bad as going from 100 down to zero all the time, but it's not optimal either.
Keep it cool
It's easy to worry about bad charging habits thanks to the training we've had from old rechargeable batteries, but lithium-ion batteries have a worse enemy: heat. Your smartphone's battery will degrade much much faster when it's hot, regardless of whether it's being used or just sitting around doing nothing.
At an average temperature of 32 degrees fahrenheit, a lithium-ion battery will lose six percent of its maximum capacity per year. At 77 degrees, that number jumps to 20 percent, and at 104 degrees it's a whopping 35. Sure, it's not exactly practical (or sane) to keep your phone in the fridge, but it's worth going out of your way to prevent long stays in hot cars and the like.
Avoid wireless charging
Wireless charging is can be incredibly convenient if your phone can do it, but it's not without its disadvantages. The inductive, wireless chargers out there today have this nasty habit of generating a fair bit of waste heat. And while wasted energy is just a bummer in general, that heat will also toast your battery in the process. That's no bueno. It's a little less convenient, but standard plug-in charging is going to keep your battery in better shape, especially if you're some place warm to begin with.
Never go to zero
Obviously, using your battery is going to make it degrade. But it's going to slowly die even if you just leave that iPad in the closet for a bit. There's a trick to minimizing that inevitable aging though: leave it a little bit of juice.
If you're going to be shelving any lithium-ion battery for a long time, try to leave it with at least 40 percent battery power to tide it over. Lithium-ion batteries don't hemmorage power at 30 percent a month like nickel-metal-hydride batteries do; they'll lose maybe five to ten percent of their charge each month.
And when lithium-ion batteries get too low—like, literally zero percent—they get seriously unstable, and dangerous to charge. To prevent explosion-type disasters if you do try to charge one, lithium-ion batteries have built-in self-destruct circuits that will disable (read: destroy) the battery for good, if it reaches rock bottom. And sure, that'll save you from a face full of battery-acid, but it'll also leave you short one battery.
Don't sweat it too much
It's easy to get protective of your battery, but it's also easy to get lazy. And that's fine, because as long as you're not a complete idiot, you'll be OK. Typically, a lithium-ion battery lasts for three to five years, and chances are you're going to want to swap out your gadgets sometime in that window anyway. The slight damage of a technically bad idea like leaving your phone plugged in all night every night, or using wireless charging, might be worth the convenience.
Still, it's pretty easy to keep your battery reasonably healthy just by avoiding particularly egregious torture like letting your phone discharge from full to zero every single day, or leaving it in a hot car all the time. And the next time you make it back home with power to spare, you'll thank yourself for it.
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I dont agree that your battery dosent like being or performs worse at a 100%. Or that it harms the battery in any way. I keep my phone plugged in as much as possible durring the day, and all night long. But i only use the wall charger that came with the phone, or a smart car charger made for my phone. Because as the article says, these chargers are smart enough to stop charging for awile after the phone has reached 100% to prevent over charging/heating. Cheap wall and car chargers dont have this feature and continuously provide a charge to the phone. Also charging using a usb port on a pc or other device does not provide this overgharge protection.
My last phones battery lasted for almost 3 1/2 years before needing to be replaced. Heres what i do.
Keep it charging as much as possible only with a "smart" charger.
Never let the batter drain all the way down. If it gets to 10% and i cant charge it at the moment, i turn it off.
Never let your device get too hot. Dont leave it in hot cars or sitting in the sun, etc.
Never "bump charge". That is just a way to trick a smart charger into overcharging your battery.
Also over clocking/volting your phone puts more strain on your battery than it was intended to take. It makes its temperatures rise higher, and the charge to deplete in a more rapid fassion. Both of which are bad for your battery.
These are just my opinions of course, but it seems to work out good for me. I think 3 1/2 years is a pretty acceptable life span.
never let it die
I have always left my phone's plugged in constantly and never an issue. Once my phone hits 100% it stops charging and then is very cool to the touch from then on.I heard phone's now has a failsafe that will stop charging and start running the phone off the charger and not battery.
Sent from my HTC6500LVW using Tapatalk
What's the best battery conservative rom?
Why do you think you should never fully drain it?
Every 30-40 days, you should fully drain your battery - until your phone automatically powers down - and then fully charge it - and allow it to stay on the charger for 30-40 minutes after it's 100%.
cope413 said:
Why do you think you should never fully drain it?
Every 30-40 days, you should fully drain your battery - until your phone automatically powers down - and then fully charge it - and allow it to stay on the charger for 30-40 minutes after it's 100%.
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Draining a lithium ion battery all the way can damage the cells causing irreversible damage to the battery. Read this
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my One using Tapatalk
disconnecktie said:
Draining a lithium ion battery all the way can damage the cells causing irreversible damage to the battery. Read this
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my One using Tapatalk
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The battery management system in the phone does not allow the cells to go lower than the safe level. For Li-ion cells, that's somewhere around 2.7-3.0volts/cell.
If it did, there'd be not only a huge warranty liability, but also a safety one.
cope413 said:
The battery management system in the phone does not allow the cells to go lower than the safe level. For Li-ion cells, that's somewhere around 2.7-3.0volts/cell.
If it did, there'd be not only a huge warranty liability, but also a safety one.
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You can believe that if you want to but if you actually read that link you will understand. It puts a lot of strain on the cells to go that far down. There is a physical reaction inside your battery of growing and stretching created from the charge/discharge cycle. If you regularly drop the charge to nothing then it makes it harder for it to keep a charge over time. You're more than welcome to do your method of calibration but I'm a firm believer in keeping the battery healthy.
Sent from my One using Tapatalk
disconnecktie said:
You can believe that if you want to but if you actually read that link you will understand. It puts a lot of strain on the cells to go that far down. There is a physical reaction inside your battery of growing and stretching created from the charge/discharge cycle. If you regularly drop the charge to nothing then it makes it harder for it to keep a charge over time. You're more than welcome to do your method of calibration but I'm a firm believer in keeping the battery healthy.
Sent from my One using Tapatalk
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I didn't say regularly. I said every 30-40 days. I have a lot of experience with lithium cells - both manufacturing and selling.
Before getting the One, I regularly used my HiTec lithium charger on my thunderbolt battery to run a discharge cycle, and then balance/charge it slowly.
No one need be afraid of their phone getting below 10%. It isn't causing any damage.
Well i guess its all a matter of opinion. Me and my wifes first smart phones were the htc incredible. I would never let mine die and the battery lasted fir 3 1/2 years. My wife would let hers die once or twice a month, and it lasted for 14 months before it needed a new battery. Got on her about not letting it die after we replaced the battery, much to my surprise she listened, and the replacement lasted for another 2 1/2 years. Both of our batteries actually still work today just not used to much anymore.
I had the dinc2 and followed the same procedure he used and pretty much nuked a battery from doing that same procedure. In less than a year my battery was bad. To each their own but I still don't suggest running it all the way out.
Sent from my One using Tapatalk
even anker, who is is probably the biggest portable battery manufacturer recommends not letting their products get below 25% because it can reduce the lifespan of the pack. They state that keeping it between 25-75% is ideal.
Interesting article, thanks for sharing OP.
I also leave my phone plugged in while sitting at my desk and let it charge up. Typically I plug into my laptop via usb while at work, once fully charged it shows 'fully charged' and switches the led status light to green.
I try to never let it die either but have to travel for work and do get very low on occasion, once I get down to 10% I typically just shut to phone off to preserve power while I am flying and avoid turning it back on again til I can get it on a charger.
Battery Life
I'm new to this phone,so I'm not entirely sure how the battery life is ... but I heard a while ago that you get the best battery life out of phones when you only plug them in to charge when they are completely dead. I don't do it often enough to see a difference, but has anybody else done it?
You probably get a much more consistent charge while it is dead/powered off. The only problem there is does letting your phone die occasionally ruin your battery or not?
Sent from my One using Tapatalk
danprichet said:
... I heard a while ago that you get the best battery life out of phones when you only plug them in to charge when they are completely dead. ...
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Did you not read the first message in this thread. wherein it says:
To get the most out of a lithium-ion battery, you should try to keep it north of 50 percent as much as possible.
and
Never go to zero.
Alright, alright - I was merely saying I'd heard a theory stating otherwise.
jpradley said:
Did you not read the first message in this thread. wherein it says:
To get the most out of a lithium-ion battery, you should try to keep it north of 50 percent as much as possible.
and
Never go to zero.
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My laptop, which is a Lenovo, has 2 settings. Best battery health and best battery life. Best health keeps the battery charged to between 50-60 percent and then stops the charge. Best life goes up to 100.
Sent from my HTC6500LVW using xda app-developers app