Battery Stats and Multiple Batteries...? - Samsung Epic 4G Touch

I never have really understood battery stats. I figure they must be some matrix of voltages and time, so the phone can say "X voltage = Y% battery left".
And I just flashed to the new stock Samsung ICS ROM, today was my first day, and I notice that I'm getting about 6-7 hours less battery life, which is pretty extreme.
I've got two Chichitec 2000mah batteries and a stock 1800mah battery. I haven't had any need to swap batteries before - but if battery life is going to be this terrible, I may have to.
So what are the consequences of swapping batteries? How does it impact your battery stats if your battery dies by say, 8pm, and you swap in a fresh battery to keep going for the rest of the day?

geolemon said:
I never have really understood battery stats. I figure they must be some matrix of voltages and time, so the phone can say "X voltage = Y% battery left".
And I just flashed to the new stock Samsung ICS ROM, today was my first day, and I notice that I'm getting about 6-7 hours less battery life, which is pretty extreme.
I've got two Chichitec 2000mah batteries and a stock 1800mah battery. I haven't had any need to swap batteries before - but if battery life is going to be this terrible, I may have to.
So what are the consequences of swapping batteries? How does it impact your battery stats if your battery dies by say, 8pm, and you swap in a fresh battery to keep going for the rest of the day?
Click to expand...
Click to collapse
To make it simple.. I know they say give it a few cycles of charging and that it could possibly get better.. Also try installing badass battery monitor too see what's eating your battery
And swapping batteries.. It doesn't impact anything to my understanding.. I've read on XDA and known numerous people who swap batteries and never mentioned any consequences

Related

Another battery question.

So since day one I've used the 1500mah battery for the tp2/imagio/hero and its been running fine, battery drain is still a bit higher than what I'd expect comming from winmo. So I was wondering people who tried both stock and the 1500mah battery, have you noticed any real difference in battery life?

Extended Battery that is not bulkier? (can use original battery door)

hi does anyone know of an actual battery that has more capacity but does not require a bulkier battery door?
and most importantly, that it DOES give you more battery life?
because i once bought a 2000MaH battery for my HTC TP2 on ebay and that was the biggest scam i fell for, the stupid battery gave approximately the exact same battery life as the old battery... which was 1500MaH
X-Kenshin-X said:
hi does anyone know of an actual battery that has more capacity but does not require a bulkier battery door?
and most importantly, that it DOES give you more battery life?
because i once bought a 2000MaH battery for my HTC TP2 on ebay and that was the biggest scam i fell for, the stupid battery gave approximately the exact same battery life as the old battery... which was 1500MaH
Click to expand...
Click to collapse
Yeah the batteries that do not require a bigger back door are all going to perform the same oem or worse. So you can get a cheap charger and and extra oem battery and do that,or say **** it and get the big ass battery
X-Kenshin-X said:
hi does anyone know of an actual battery that has more capacity but does not require a bulkier battery door?
and most importantly, that it DOES give you more battery life?
because i once bought a 2000MaH battery for my HTC TP2 on ebay and that was the biggest scam i fell for, the stupid battery gave approximately the exact same battery life as the old battery... which was 1500MaH
Click to expand...
Click to collapse
ahhh the eternal quest for the holy grail of batteries. nope, it's not possible. not until battery technology improves. If it was possible to have a better performing battery that was the same size HTC would of put it in their to begin with. check out batteryboss.org for proof.
OneStepAhead said:
ahhh the eternal quest for the holy grail of batteries. nope, it's not possible. not until battery technology improves. If it was possible to have a better performing battery that was the same size HTC would of put it in their to begin with. check out batteryboss.org for proof.
Click to expand...
Click to collapse
I did check it out! What's wrong with the 2150mAH TP2 battery as an option? I ordered one. Thanks for the link.
Here's one: Mugen Power Extended Battery 1800mAh for HTC Evo 4G
However, the reality is that Manufacturer claims a 20% improvement in battery life. Depending on your use that may or may not be significant enough. I'm just running stock battery w/ custom ROM (Damage Control) and some system tweaks which significantly improved battery life (errr, at least resulted in less battery drain
-kp
GaryJ51 said:
I did check it out! What's wrong with the 2150mAH TP2 battery as an option? I ordered one. Thanks for the link.
Click to expand...
Click to collapse
The 2150 OEM TP2 is the official HTC extended battery, its thicker and requires a extended battery door.
kperry1911 said:
Here's one: Mugen Power Extended Battery 1800mAh for HTC Evo 4G
However, the reality is that Manufacturer claims a 20% improvement in battery life. Depending on your use that may or may not be significant enough. I'm just running stock battery w/ custom ROM (Damage Control) and some system tweaks which significantly improved battery life (errr, at least resulted in less battery drain
-kp
Click to expand...
Click to collapse
The "1800mAh" Mugen tested identical to the 1500mAh OEM battery.. save your money. http://batteryboss.org/results/NewMugen1800mAh_vs_NewOEM1500mAh.png
IMO the best option is to tweak your settings.. Im getting as much as 30 hours out of my OEM 1500 battery now. I also have 3 spare
batteries in case I ever need more juice. they are quite small and fit in a wallet fine. i've yet to actually need one. You could also try
this, which was told to me by an HTC Rep (and it for real almost tripled my battery life!)
"To also help with Battery Life you can do these steps exactly: 1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well."
you only need to do it once, and then again each time you flash a new ROM or do an OTA update.
did this method of turning the phone on and off and charging the battery for another hour improve battery life for anyone?
OneStepAhead said:
The 2150 OEM TP2 is the official HTC extended battery, its thicker and requires a extended battery door.
Click to expand...
Click to collapse
OOPS! Time for a new door.
OneStepAhead said:
Th
IMO the best option is to tweak your settings.. Im getting as much as 30 hours out of my OEM 1500 battery now. I also have 3 spare
batteries in case I ever need more juice. they are quite small and fit in a wallet fine. i've yet to actually need one. You could also try
this, which was told to me by an HTC Rep (and it for real almost tripled my battery life!)
"To ate.
Click to expand...
Click to collapse
30 hours? you joking right?
If you getting that much why in the world would you have the need for an extra battery let alone three?
I call BS
That's hardly BS.
I easily get 30+ hours out of a single charge.
Right now im at 22 hours with ~45% battery life on stock 1500mAh.
It's a rip-off to get an extended battery because they don't perform as well..
I am waiting on a 1750mAh spare battery that fits with the standard back plate. If it works well, I will advise.
what is your up time though. i have an 3500mah extended battery and i don't get 30 hours still
topdnbass said:
That's hardly BS.
I easily get 30+ hours out of a single charge.
Right now im at 22 hours with ~45% battery life on stock 1500mAh.
It's a rip-off to get an extended battery because they don't perform as well..
Click to expand...
Click to collapse
I keep 4g on
I keep data always enabled too.
Do you?
I get over 9 Hours with BT, and data on all day. I have a task manager that shuts things down every 30 mins "IGNORE LIST messages, gv dialer, clock, task manager" Without it I was getting 4 hours. I make calls and surf the web and watch my porn clips during the day, so it does get used. I sent for the 1750 yesterday so I will update this after I get it that thing going. And the new batterys do have to be charged and discharge like 20 times before the hold a charge as well as they say it can.. Batterys on ebay=joke, buy the name brand ones. I used to make r/c battery packs and they have a peak run time in life, and its not the first time you charge them. It takes time..
I went to eBay and bought the "HTC EVO 4G BATTERY 1800+Dock USB CHGR SPRINT TOUCH PRO2" from vendor Chichitec. Vendor is located in California, so no sketchy chinese vendor, high ratings and fast delivery.
I haven't really timed how much more usage I'm getting with this new battery, but it does last longer, trust me.
The separate wall charger also seems to charge the OEM battery better than just by using the usb cable on the phone.
Not a bad deal for $19.98 at your door.
~fb
topdnbass said:
That's hardly BS.
I easily get 30+ hours out of a single charge.
Right now im at 22 hours with ~45% battery life on stock 1500mAh.
It's a rip-off to get an extended battery because they don't perform as well..
Click to expand...
Click to collapse
Sadly, for people who actually turn on their phone this is somewhat unrealistic.
Kooper113 said:
Sadly, for people who actually turn on their phone this is somewhat unrealistic.
Click to expand...
Click to collapse
I turn mine on quite frequently and posted my build below.
SayWhat10 said:
30 hours? you joking right?
If you getting that much why in the world would you have the need for an extra battery let alone three?
I call BS
Click to expand...
Click to collapse
I get anywhere from 20-40 hours on a single charge(OEM battery) depending on my usage running Damage Control 3.2.3 with netarchy's 3.7.5 kernel, setCPU and Advanced Task Manager. I have setcpu keep the CPU @ 245mhz when the screen is off and 245mhz-1113mhz(on demand) when the screen is on.
I also use Advanced Task Manager($0.99) to kill out the programs I'm using with a widget/button. Whenever I'm done using the device I quickly hit the kill button(which doesn't kill the normal essentials) and shut the screen off which down-clocks the proc to 245mhz.
Today for instance:
-unplugged at 07:00
-GPS on, Wifi Off unless needed, 4G Off, Bluetooth On during travel
-beautiful widgets updating weather every hour via cell triangulation
-stock weather updating every hour
-used for slacker via the AUX jack for 45mins-1hr on the way to work
-1 bluetooth call in between listening to slacker on the car
-about 10-15 calls today while at work
-about 10 emails came in and I read them
-browsed web for prob 20mins during lunch on office wifi
-used for slacker via the AUX jack for 45mins-1hr on the way home
-rebooted device
-made 1 non-bluetooth call, sent a few text messages, and then posted this
I'm now at 61% battery remaining and probably won't charge this until lunch or on the way home from work tomorrow. I would give my up time vs awake time but I restarted the phone an hour ago so those figures aren't there anymore.
So, BS? I think not.
I have read what batteryboss has said but I can tell you I get 3-4 hours longer use from my 2000Mah battery. Now I am seeing a big drop off with Froyo but it is on all my batteries, even the OEM.
clayginn said:
I have read what batteryboss has said but I can tell you I get 3-4 hours longer use from my 2000Mah battery. Now I am seeing a big drop off with Froyo but it is on all my batteries, even the OEM.
Click to expand...
Click to collapse
I hear that, I probably lost 20% or more with froyo and immediately reverted back to my DC 3.2.3 build.

HTC Desire CDMA w/ 3500 mAh Extended Battery...

Hello folks..
I have a HTC Desire CDMA and I bought a Extended battery (3500 mAh to be exact) and this battery lasts just about as long as my normal battery does. It is thick enough to be 3 of my regular batteries, and it is alot heavier, so i know it wasnt a scam, plus there was good reviews... but, The only difference that I get with this extended battery, is that it stays at 100% for about 3 hours, and then starts booming down the charts on battery level.. I mean, i normally have about 25% at the end of the day with this extended battery, but i figure that it should atleast last 2 days on a full charge.... with it being 3500 mAh.. I mean, wow... Can someone help me? Im using a trusted stable battery saving kernel and rom.. so I know that's not the problem..
bump.........?
Belswick67 said:
Hello folks..
I have a HTC Desire CDMA and I bought a Extended battery (3500 mAh to be exact) and this battery lasts just about as long as my normal battery does. It is thick enough to be 3 of my regular batteries, and it is alot heavier, so i know it wasnt a scam, plus there was good reviews... but, The only difference that I get with this extended battery, is that it stays at 100% for about 3 hours, and then starts booming down the charts on battery level.. I mean, i normally have about 25% at the end of the day with this extended battery, but i figure that it should atleast last 2 days on a full charge.... with it being 3500 mAh.. I mean, wow... Can someone help me? Im using a trusted stable battery saving kernel and rom.. so I know that's not the problem..
Click to expand...
Click to collapse
Do you have a custom rom? Try to download SpareParts from the market and unplug the charger when it says "charged". For my Samsung i5500 and a cyanogen rom the phone says "charged" a lot of time before the real charge...i think that the batterystats file isn't calibrated on your new battery, and so it says charged before...if you have a custom rom i think it's useful (if not necessary) to do a battery ricalibration (i.e charge the phone until the 100% then wipe the battery stats via recovery and then let the phone discharge until the 0%)
I don't know if this will help you, i hope!
I think
When i go back home tomorrow and pick up my extended battery, i will try this. thanks.
edit: yes i have a custom rom. it's oxygen.

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

[Q] Does this mean my S3 needs a new battery?

Ever since last week, my battery has been misrepresenting the % of battery. For example, last week, I had fully charged my phone in the morning and it said 100%. Right after I pulled out the charger, it said it was at 60% battery. When I used my phone, it dropped 1-2% every minute. I thought it was an app or something that was doing this, so I installed Battery Doctor. It didn't really make a difference.
I'm posting this, because right now it's worse than ever. It said that I had 100% battery and then right after I pulled out the charger, it said it was at 56% battery. After I closed the screen, it said 100% battery again. Then it started to drop %'s every few seconds.
Some information that might be handy:
- I've had the S3 for 1 1/2 years now
- Was rooted, after update, root was removed and I haven't bothered
-Attached to the pictures are two pictures of my battery today. I haven't done anything but screenshot twice.
Also if it is a battery problem, what type of battery should I get? I'm thinking of buying an Anker 4400 mAh Extended battery (http://www.amazon.ca/Extended-GT-I9300-T-Mobile-Cellular-EB-L1G6LLU/dp/B009GVG8FA).
ic3blitz said:
Ever since last week, my battery has been misrepresenting the % of battery. For example, last week, I had fully charged my phone in the morning and it said 100%. Right after I pulled out the charger, it said it was at 60% battery. When I used my phone, it dropped 1-2% every minute. I thought it was an app or something that was doing this, so I installed Battery Doctor. It didn't really make a difference.
I'm posting this, because right now it's worse than ever. It said that I had 100% battery and then right after I pulled out the charger, it said it was at 56% battery. After I closed the screen, it said 100% battery again. Then it started to drop %'s every few seconds.
Some information that might be handy:
- I've had the S3 for 1 1/2 years now
- Was rooted, after update, root was removed and I haven't bothered
-Attached to the pictures are two pictures of my battery today. I haven't done anything but screenshot twice.
Also if it is a battery problem, what type of battery should I get? I'm thinking of buying an Anker 4400 mAh Extended battery (http://www.amazon.ca/Extended-GT-I9300-T-Mobile-Cellular-EB-L1G6LLU/dp/B009GVG8FA).
Click to expand...
Click to collapse
Chances are that your battery is dying. I don't really know which one is best to get as replacement though.
You should also take a look at what is using your battery, there might be more than a dying battery (app, system). Can also get OS Monitor to see if something is over-using your ram/cpu.
N.B.: Extended battery makes your back cover much larger, you'll also need a different case (if you're using one).
BWolf56 said:
Chances are that your battery is dying. I really know which one is best to get as replacement though.
You should also take a look at what is using your battery, there might be more than a dying battery (app, system). Can also get OS Monitor to see if something is over-using your ram/cpu.
N.B.: Extended battery makes your back cover much larger, you'll also need a different case (if you're using one).
Click to expand...
Click to collapse
Nothing's using up my battery because I checked through a multitude of apps and the processes running were all the same as before my battery was really dying. I do have a case so I guess I'll just try to find a smaller battery. Thanks for confirming my suspicion about my battery!
I have the ZeroLemon battery. 2300 ma. Same size as stock battery. It was a good deal. They give you 2 batteries and wall charger. Only downside is it does not have NFC. I don't use it so didn't bother me.
Sent from my SM-T310 using Tapatalk
I got the zero lemon 2300 and I went from 1.5 hrs of screen on time to a little over 4 hrs of screen on time. Once while doing nothing but watching videos I got 5.5 hrs. My phone is the same age as yours. Seems that is about the lifespan of smart phone batteries.
edited to add that my phone would lose 2.5 % an hr while idle, but now it's only 0.4%.

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