Develop Bugs

Is this good Battery Life?

So I've just recently rooted my Incredible (about 4 months now) and I bought a 3500 mAh battery off ebay for about 12 dollars around the same time. I used to get really great battery life with it. About 2 full days without having to charge. I'm not sure if the battery's getting worse or if this is normal battery depletion for all you other Incredible users.
I'm running CM7 nightly 258, the latest one, and have the newest Incredikernel, just flashed the kernel about a week ago. I'm still pretty new to the rooting game. Before I flashed the kernel I just had the normal kernel for CM7. I was getting about 10 hours of battery before and tried the battery calibration, but I think I did it wrong and got maybe 8 after that.
So I tried running the Incredikernel and was getting between 12-20 hours of battery life after that. My usage is at least 2 hours of Pandora a day using 3g, sometimes 3-4 hours. Moderate to high internet usage, rarely make calls, and moderate texting. I'll sometimes play some games, but that probably equals about half an hour's worth per charge, an hour at most. I'm also running juice defender, too.
With the new kernel I have the smartassv2 governor and have my processor speed between .128-1.113ghz. I think I did the battery calibration the correct way this time. I bumped charged it until it was completely charged. Then let it completely drain till it shut off yesterday. It lasted about 24 hours with the normal usage I have stated above. I then turned it on 2 more times to make sure the battery was completely drained. I took out the battery for a couple minutes and then put it back in. Then I let it charge off until the light turned green. I then booted into recovery and cleared battery stats. Rebooted the phone until it was completely started and then unplugged the phone.
I let the battery drain completely again and it lasted another 24 hours with the same usage I have stated above and I'm now charging again. I turned it back on while it's still charging though.
Is this normal battery life compared to you guys. Remember I have the 3500 mAh battery, but it was off ebay (stated new though). If you could also post you're battery usage and how long your battery lasts, as well. Also any other important info like, kernel, ROM used, CPU speed, etc. I'd like to compare to see how everyone else is doing. Thanks again.

I'm on CM7 right now with the latest Incredikernel. I use the Incredicontrol app to undervolt and set my frequencies from 128-921 Mhz. I have a standard battery and with light usage I get a day and half off a single charge, moderate/heavy usage it'll range from 12-20 hours.

You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?

graymonkey44 said:
You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?
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I don't use Juicedefender or any power saving app like that. Moderate/Heavy use I mean texting all day making calls, on the internet, playing various games. Don't get me wrong there have been times that I kill my battery in less than 10 hours, but that's when I'm on my phone non stop or on Netflix. For a governor I use smartass, not smartassv2. I did calibrate my battery once, last year when I got the phone. To me what makes the biggest difference is undervolting with the Incredicontrol app. And the phone runs much cooler.

I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.

graymonkey44 said:
I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.
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I always dim my screen as well. If its on the highest setting it'll kill a lot of your battery quick. I used to have my phone over clocked to 1.113 GHZ but after testing different things out I noticed if I lowered it under 1 GHZ there was not much of a diff. For undervolting I dropped the number by 25 at a time until I noticed the phone lagging. hope this info helps.

I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.

graymonkey44 said:
I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.
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Charge it while its off or get an external charger. That's the only way to get a true 100% charge from a phone battery.
-My life is a shooting range, people never change-

Yeah, I have been bump charging as of lately(about a month), but I hear it decreases the life of the battery so I've been holding off on doing that.
With my latest charge, I've gotten 1d 14h 49m 20s, with moderate usage which I think is pretty impressive. It's still at 5% and I'm going to let it completely discharge and then charge it off again until the light turns green.
Edit: It lasted me right around 40 hours all together. It shut off so I decided to turn it back on and see how long it would last again. It was at 2% when I turned it back on and I got another half hour out of it which led me to the 40 hours. Do you think that's good battery life with a 3500 mAh battery?

Batteries Doomed To Fail?

I've noticed that mine (and others report) their SGS3's run particularly hot. This is most likely due to the dual core processor, the processor seems to be located at the bottom right of the phone (by the back softkey) as this is where the phone is the hottest. Im in Arizona and during the summer temps outside are excessive constantly over 100F. Even when in my home all day I can rarely get my battery temp down to 85F. Li-Ion batteries have a much shorter lifespan when exposed to temps above 85 and when exposed to excessive temps are also prone to "thermal runaway" in which the cells become so hot that the battery continues to self heat until catastrophic failure in which there is so much pressure built up inside the battery that when the casing fails it essentially becomes a flamethrower. The dell laptop battery recalls were caused by this, a flame thrower in my lap doesnt sound fun but neither does one in my hand (unless im using a real one). The polymer plastic casing is a terrible heat sync (especially with a rubber case). It seems these batteries are going to need to be replaced once a year.
Looking at about a 35% loss in capacity within one year. I also experience terrible battery life, moderate use i get about 6 hours, screen eating up most of my battery and when in doors i keep the screen brightness all the way down.
Data found from multiple websites but do not have enough posts to site source:silly:

Wait.. You're complaining about your phone being 85f? Try over 100f lol mine gets to 42c.....very annoying
Sent from my SGH-T999 using xda premium

Sent from my SGH-T999 using xda premium

I got my phone there first day it came out and its rooted and overclocked and it stays around 28 C but goes up to ~40C at heavy use
Sent from my SGH-T999 using xda app-developers app

Yes, these batteries are doomed.
I have been looking into the charging PMIC and if you can tell it to stop charging at 80%, but it appears to be hard set at 4360mV where it goes into a trickle charge mode and runs the phone of the USB power.
The problem is two fold. For one thing we have a 2100mA battery, and the charger is 900mA, so a 0.5C charging is good for long term battery life, even better if you charge over USB at 500mA. But the discharge rate can be as high at 1000mA if you have all the bells and whistles on and things are hot to begin with. The typical usage with screen on is 200mA, maybe 400mA with WiFi, more with BT. But current increases greatly when both cores are over 1.5GHz.
So the problem mostly seems to be the charging is reducing capacity by people going below 10% charge (if you graph the voltage you can see the tail off below about 15%) and charging above 80%. LiIon capacity is reduced by keep over 95F and also permanently reduced by draining to low voltage levels and also charging much above 4.2V and then holding the voltage there. I noticed the capacity after two weeks was reduced by 20% already.
And no, the thermal runaway is no longer a problem and I wouldn't mention it anymore. The battery self-protects, as well as the system is being very careful monitoring the thermals. Also, the CPU is throttled above 56C ( I believe)
But, I know in the PMIC controls you can disconnect the battery and run only on AC when plugged in. This would be ideal to leave charge the battery to 80% then stop charging it, and you could leave it plugged in at work or overnight without worrying about the battery capacity.

You lost 20% capacity in 2 weeks??? Wow!
I've had mine for going on 2 months and my battery seems as strong as ever! Still able to easily get over 24 hours off a full charge and still be above 10%.
I am not trying to be argumentative here but isnt the idea that going below 15% and charging above 80% purely myth? I've seen quite a number of people posting the same info in the past but when asked for a reliable source for their information they are never able to produce one. Im pretty sure I've read articles/studies that debunked it as well. (Ill try to find them but honestly may be thinking of something else I read. Ill let you know either way if I find it)
I do know its a good idea to have the built-in function that stops it charging around 95-97%, but isn't that just to prevent overcharging?
Also I should point out that my phone does often get quite warm, even hot sometimes, but it hasn't affected my battery life in any noticeable way.
As for your 20% drop in capacity, have you flashed any roms? The latest jb leaks have big battery drain issues. Also when you flash any rom it can take a few full cycles for the system to relearn how to accurately report battery use and can often trick people into thinking the battery capacity has gone down.
Like I said, not trying to argue with you. It seems you tend do do your research on this type of stuff so im hoping you can point me to where people are getting their information.
Sent from my SGH-T999 using xda app-developers app

[Q] 100% to 95% battery

Hey guys. Within a minute or so after my phones removed from the charger it drops to 95%.is this normal?im using the 1.8a LG charger that comes with the phone F240L.i read somewhere that they are using the LG charger 1.2a out of the box.does this phone have two different out of the box charger..thanks..

Completly normal. The method that seems to be employed for the battery percentage is read the voltage itself and make a guess
This high voltage drops down quite quickly both as a "load" is applied to the battery,. Plus there is not a lot of change in capacity from the very high voltages to the more normal voltages, in any li-ion battery. So while the voltage can be used to guestimate a range of charge levels, between like 4.0 and 4.3 there isnt much changed in the battery itself.
Further from what i have seen so far (not totally sure) they are charging to 4.35v which is a rescent slight change in the chemistry of the li-ion to allow for higher charge levels without it gassing or reducing the life (Havent tested that theory long enough yet either).
Also All li-ion alogrythms for charging do a CC CV charge, where the final charge is just "holding" the voltage at the high, till the batterys charge state floats up to that level. This can (not facted out yet) mean that leaving it on the charge past the time it claims it is fully charged , it will put tiny bits more into it. This happens more with my big fat zerolemon battery because it seems to have more resistance to the other connected cell items than would be desired.
Anyways all is well, just dont believe anything a computer tells you , and it will be fine The other methods have thier own deficiencies.
Other STUFF:
Li-Ion batteries really do not prefer to be left at their high charge voltages, as they degrade faster there. so when you read the above, or try "bump" charging methods (thats just restarting the charge) It is not good for it. The battery will be happier, using it like it was designed, taking it off the charge when it states it is full. all of this being more info than anyone needs to know, or freaking care about.
As a li-ion battery becomes old and weak, it will exhibit even more of these charateristics that have people wondering. It will drop off the highs quicker still, have less total capacity, and increse a tiny bit in resistance , which will cause it to drop even more under load. At some point the battery would be so bad at that, you would want to replace it.
Heat, the li-ion cells dont like these extreeme heats. they prefer to work more at normal room temps and cold but not extreeme cold. So take that in also as a factor in keeping your battery more happy, again if you want to waste half your life pampering the thing

runwithme21 said:
Hey guys. Within a minute or so after my phones removed from the charger it drops to 95%.is this normal?im using the 1.8a LG charger that comes with the phone F240L.i read somewhere that they are using the LG charger 1.2a out of the box.does this phone have two different out of the box charger..thanks..
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It's the calibration. Happens to me too sometime. Drops rather fast to 95%, then goes stable around 89%. Just leave it on charge for an extra 45 minutes or so, then let the battery die down to at-least 10% before charging again. Not exact science, it's just what I do.

[Q]battery not fully charging

Hello.got xperia m before 4-5 days.its with cm11 and i got an issue with battery.when i charge my phone close i can see that it is 100% charged.but when i open it it drops to 95% fast. Same thing happens if i charge it open. When i replug the charger it goes to 99% normaly but after it takes much time to go 100%. Is this normal?i also try calibrating battery removing battery.bin and also tried removing battery for 10min.no luck at anything

AggelosGR said:
Hello.got xperia m before 4-5 days.its with cm11 and i got an issue with battery.when i charge my phone close i can see that it is 100% charged.but when i open it it drops to 95% fast. Same thing happens if i charge it open. When i replug the charger it goes to 99% normaly but after it takes much time to go 100%. Is this normal?i also try calibrating battery removing battery.bin and also tried removing battery for 10min.no luck at anything
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It looks like it has some wear. Because you're probably out of warranty by flashing another ROM, may be it's a good idea go searching for another battery. If I'm not mistaken, there are some 1900 mAh batteries arround compatible with Xperia M (the default one being 1750 mAh).
But you can try to turn airplane mode on, then go to Settings > Performance > CPU and setting maximum CPU speed to 486000, as well as the CPU governor to powersave, then checking the option to restore these options every boot. Level brightness down to the minimum.
Now, let it charge to 100%, disconnecting the charger, after. See if it drops. If it still dropping, it's battery wear. Of course, the time it lasts depends on how much time you spent with screen on and what tasks are you performing, i.e.: if you're playing Fruit Ninja right after disconnecting the charger, with medium brightness, it's not imposible to drain 7% right at the first three to five minutes.
Well, may you post a screenshot of battery usage graph?

prppedro said:
It looks like it has some wear. Because you're probably out of warranty by flashing another ROM, may be it's a good idea go searching for another battery. If I'm not mistaken, there are some 1900 mAh batteries arround compatible with Xperia M (the default one being 1750 mAh).
But you can try to turn airplane mode on, then go to Settings > Performance > CPU and setting maximum CPU speed to 486000, as well as the CPU governor to powersave, then checking the option to restore these options every boot. Level brightness down to the minimum.
Now, let it charge to 100%, disconnecting the charger, after. See if it drops. If it still dropping, it's battery wear. Of course, the time it lasts depends on how much time you spent with screen on and what tasks are you performing, i.e.: if you're playing Fruit Ninja right after disconnecting the charger, with medium brightness, it's not imposible to drain 7% right at the first three to five minutes.
Well, may you post a screenshot of battery usage graph?
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Well i put it last night and it charged 100% and battery drops normaly. I thing that this is happening only when i charge it closed...

Charging it closed? Locked?
Well, it's strange because sleep should save battery.
Anyway, looks like your battery has some damage. It's a good idea to take someone's battery to test it out, or bringing it to some place where they replace batteries (I know, it's a horrible english formulation, but back here, in our yellow and green country it does make sense, since there's a lot of Asians and Paraguyans selling all that stuff right in the downtown streets, but you'll have to check out for a place that can test it for you).
You may well take it to Sony, but they'll charge you for everything that they replace. Still, it's the best place to ask for a test. Not so much, here in my city, because store workers are, in general, a bunch of semi-cultured people who knows nothing about handset techinal aspects, just waiting for the time to take the bus and go home. Well, just sayin'... Good luck!

Ok.battery seems to work fine.phone charges to 100% and it holds 5h and 45min of gaming with low brightness.i charged it full,removed charger and i go to sleep.when i woke up (after 6h50min) phone was still 100%.i guess that the phone wasnt charging full cause of the way calibration i did by removing battery.bin....

AggelosGR said:
Ok.battery seems to work fine.phone charges to 100% and it holds 5h and 45min of gaming with low brightness.i charged it full,removed charger and i go to sleep.when i woke up (after 6h50min) phone was still 100%.i guess that the phone wasnt charging full cause of the way calibration i did by removing battery.bin....
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It happens. This morning I used my phone for 40 minutes after disconnecting it from the charger. Minimum brightness, CPU throttled to powersave/540 Mhz max. settings and it still managed to get down to 94%. It turned out that the GPS were turned on, for some unknown reason. I turned it off and back on, and it went working correctly (i.e. working only when wheater update required it). Indeed, the screen itself does suck a great amount of power, and the screen kept on for nearly 90% of this 40 minutes. So I got to correct myself, also and apologize for my over-sugestion.
Cheers!
P. Pinheiro

G4 warm while charging

So I got this phone 2 days ago and I love it except for the battery.Anyways,the battery temp while charging is 34c is this normal?(37c while writing this in chrome)And I noticed that battery drains pretty quickly while gaming(like clash of clans)and hot from the back-top.So is this normal?n

Yes, this is normal. Having the screen on while charging will make it even warmer. Be aware that the phone charges more slowly when the battery rises above roughly 90F/32C, so keeping the phone cool will help with charging speed. Mine will drop from the max of 1600mA with the stock charger, to about 300mA, as the temperature reaches the low-90's F.

Thanks for the reply!

Yeah I noticed that.When ive put the phone in an air conditioned room,battery tempreture decrased to 31.5c and the voltage increased to 4300 mV.But I did a research and found that li ion max voltage is 4.2v anything up is dangerous unless the battery got some sort of overvoltage protection.So should I be worried?

No. Mine charges to 4.4V. I'm comfortable that this is a safe value for the battery.
If LG had it dangerously overcharging every single battery, that would be incredibly irresponsible. I'm sure they picked a safe voltage.

Guys - what app/s are you using to measure. I use Ampere but is there any better?
Thanks.

Just go to the hidden menu by dialing *#*#4636#*#*

That doesn't show the charging Ma?