Database Users

[Dev request] ignore low battery states

I want to be able to set android to ignore low battery states. No 15% warning and no shutdown on 0%
Is this possible ?
This would make it very easy to use the 2400mah battery.
Sent from my HTC HD2 using Tapatalk

Visentinel said:
I want to be able to set android to ignore low battery states. No 15% warning and no shutdown on 0%
Is this possible ?
This would make it very easy to use the 2400mah battery.
Sent from my HTC HD2 using Tapatalk
Click to expand...
Click to collapse
You could use one of the BETA Kernel with Extended Battery Support..
There you could "use" these type of Battery !
It isnt good to deactivated these secret Warnings because you should know if the Battery would be discharged to 0 % !!

Visentinel said:
I want to be able to set android to ignore low battery states. No 15% warning and no shutdown on 0%
Is this possible ?
This would make it very easy to use the 2400mah battery.
Sent from my HTC HD2 using Tapatalk
Click to expand...
Click to collapse
I whole heartedly agree with you. There is no point of any batteries shutting down at 3.6 volts whether regular or extended. It is a well known fact that our batteries can be safely discharged to 3.3 volts with no ill effects whatsover.
There is no way to discharge the battery to the unsafe level of lower than 3 volts (i believe it is around 2.7v when the safety chip/mechanism kicks in shutting the battery down to prevent damage)
So it would be a great step forward for someone to lower the stupid 3.6v preset shutdown in the kernels and drop it down to 3.3 volts
If anything Arne might be the one to do it... He alone came up with the extended versions of the other kernels here. Wish I knew where to look to lower the phone shuttdown limit.

Lanhack the cheap extended battery is great if we can have the phone ignore % and we use a voltage widget to understand our power level. The cheap one doesn't report as an extended battery so arnes kernel has no use for these batteries right now. Also it doesn't report % properly and the kernals go to 0% with over 70% still left in the battery no matter what kernel you use.
Sent from my HTC HD2 using Tapatalk

Android battery charging myths and the real truth.

After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium

Same thing HTC told me.
Sent from my A500 using xda premium

Yes, the wiping battery stats in recovery does NOTHING. Glad to see this reported. I've read much about this on Google+, with actual Google engineers and employees and developers debunking this. It only deletes your phones record of battery use (essentially), i.e. has absolutely zero effect on battery use, only record/reporting.
Sent from my PC36100 using xda premium

While this is correct an SBC kernel will allow your phone to get a higher charge and hold it there while undervolting will lessen the amount of power used therefore giving u better battery life.

While fully charging a battery will potentially lessen the life of a battery, it could take years for a noticeable effect... And in reality, how many people will continue having the evo once their contract is up, and the recent/upcoming lte releases become free with upgrade down the road...
Not to mention letting the phone discharge too low is not great for a battery either...
I concur on battery stats not needing to be wiped...
Nice post overall, and some really good information presented, thank you for sharing.

ca1ne said:
While fully charging a battery will potentially lessen the life of a battery, it could take years for a noticeable effect... And in reality, how many people will continue having the evo once their contract is up, and the recent/upcoming lte releases become free with upgrade down the road...
Not to mention letting the phone discharge too low is not great for a battery either...
I concur on battery stats not needing to be wiped...
Nice post overall, and some really good information presented, thank you for sharing.
Click to expand...
Click to collapse
Yeah I def wanna throw some props your way on the SBC kernels. Thanks a lot,it's been working great so far.
Sent from my A500 using xda premium

PyreKing said:
After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium
Click to expand...
Click to collapse
Thanks for the information! I wonder how this will be received by those who've been doing this battery stats wiping religiously when flashing ROMs. Interesting to get some information from the SOURCE!
Also, I've always used the sbc kernels, and have had no battery issues (and I let the phone charge all night, every night). I'm sure it'll mess up my battery eventually, but I got my current one free anyway from Sprint (extended one), so oh well. No loss!

PyreKing said:
After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium
Click to expand...
Click to collapse
This is good info - I can confirm that. Sometimes we advise our customers to wipe out the stats, because this differs from phone to phone. Dell Streak 5 for example, has the .bin file hardcoded somehow to the OEM battery capacity, so the charge indication is not shown properly if the battery is bigger than the OEM (if I'm not mistake). But in general, yes, wiping the .bin file won't increase battery life.
There is a good article on this from Lifehacker on Task Killers. Google "Android Task Killers Explained: What They Do and Why You Shouldn't Use Them"

When changing roms, is it advisable to wipe the battery stats?

[Q] battery callibration

I installed Batery Callibration in my Galaxy Note .. Love this app...... Increase so much my life battery
One question: How often I Calibrate My Battery??

1. After flash or update ROM.
2. When replace or pull out & put in battery for whatever reasons.
3. I do calibration about once a week.
I always drain battery till it is 1% before plug in charger after hit the calibration button.
Battery time is acceptable to me...15+ hrs with normal use (stock ICS rooted).

Thank you very much for the tips. I Have Rocket Room V07 and Speedmod kernel 3.3. With 3g and Wifi turn on all day, my battery last 24 hs.....Very good for me

which battery calibration app?
andreborg75 said:
I installed Batery Callibration in my Galaxy Note .. Love this app...... Increase so much my life battery
One question: How often I Calibrate My Battery??
Click to expand...
Click to collapse
LowDef said:
1. After flash or update ROM.
2. When replace or pull out & put in battery for whatever reasons.
3. I do calibration about once a week.
I always drain battery till it is 1% before plug in charger after hit the calibration button.
Battery time is acceptable to me...15+ hrs with normal use (stock ICS rooted).
Click to expand...
Click to collapse
A question for both of you and anyone else who's using such a tool: which battery calibration app do you use? Any views on how good (or not) these apps are?
Cheers

I use battery monitor widget pro, very effective and good widget also.
Sent from my GT-N7000 using xda premium

andreborg75 said:
I installed Batery Callibration in my Galaxy Note .. Love this app...... Increase so much my life battery
One question: How often I Calibrate My Battery??
Click to expand...
Click to collapse
Never. That app does NOTHING. You have fallen victim to the placebo effect.
Wiping battery stats does NOTHING on any Android device other than change the behavior of Settings->Battery. It does nothing with regards to fuel gauge calibration.
The fuel gauge chipset in our device does not require calibration and calibration techniques cannot be applied to it. (With one exception - resetting it after a reboot on low battery can have a temporary positive effect - but you can just wait a few hours for it to converge.)
largeruk said:
A question for both of you and anyone else who's using such a tool: which battery calibration app do you use? Any views on how good (or not) these apps are?
Cheers
Click to expand...
Click to collapse
As stated above - they are 100% useless and worthless on our device and any other Samsung Galaxy S1/S2 family device.

To enthropy512, thank you very much for your hardwork for us here in xda. How about a tread that says, after a battery full, you take out the battery for 3 mins then put it back again.

largeruk said:
A question for both of you and anyone else who's using such a tool: which battery calibration app do you use? Any views on how good (or not) these apps are?
Cheers
Click to expand...
Click to collapse
Battery Calibration, try following the procedure stated therein and verify by yourself if it works.
At least you have nothing to lose but very poor battery performance.
You guys should have ever heard of an alternative battery product named MUGEN that selling original and extra sized batteries world wide including range of Galaxy batteries. They also supply a battery calibration app on Play Store regardless phone models but it's for rooted phone only. If this app does nothing they wouldn't bother wasting their time developing it.
Another thing is to investigate what apps or services prevent your phone from going into deep sleep, also try freezing apps or services you aren't using.
Those are my tricks for having battery performance improved.

andreborg75 said:
I installed Batery Callibration in my Galaxy Note .. Love this app...... Increase so much my life battery
One question: How often I Calibrate My Battery??
Click to expand...
Click to collapse
Hi can i have the link for the calibration app ???

Search battery calibration on google play...its free

Your phone had to be root to use battery calibration

i dont trust any battery callibration app or battery power saving app
i only used cpu spy and betterbatterystats
my point is check ur device, does it goes to deepsleep everytime screen turned off. if it doesnt check using bbs what apps making ur device turned on/wake ur device. im very satisfied with this method. 1x full charge for 24 hr for my daily use and only 24 % battery drained for 24 hr if u didnt use ur device at all(standby)
Sent from my GT-N7000 using xda app-developers app

Storing your Nexus 4 [Battery]

Hello everyone,
I have a question which has been bugging me and doing I have done some research but to no avail.
Now I charged my Nexus 4 to about 80% and left it overnight (turned off) near my window in a tiny wooden box,
for all who don't know; UK is quiet a cold country.
Now my theory is, if you're not going to use your phone for a prolonged amount of time, its best if you place your phone in a cold area as the electrons will slow down slowing battery drain.
Am I right or down right stupid.
Discuss!

Your searching needs more practise..
http://m.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289

A cool (not cold), dry place protected from sunlight is best.
Battery should be about ~60% to reduce any negative effects on the battery itself (storing at a full charge/low charge is actually bad for it)

if you're only storing it "overnight" there would be no difference whatsoever.
not even 1%.

Yet he mentioned "a prolonged amount of time" that's where these factors play a role.
Sent from my Nexus 4 using xda premium

Vangelis13 said:
Your searching needs more practise..
http://m.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
Click to expand...
Click to collapse
Does it apply to all types of rechargeable batteries?

Instructions will vary slightly based on battery type, that's why I suggested some basic precautions.
Sent from my Nexus 4 using xda premium

scream4cheese said:
Does it apply to all types of rechargeable batteries?
Click to expand...
Click to collapse
Lithium ion batteries, yes.

Battery Calibration messed up, Now battery percentage jumps up and down

Purchased a new battery, didn't calivrate it properly and noe I am having issues using the device as the battery won't hold the charge. Sometimes I charge to 100 with the screen off, to initiate calibration but when turning the phone it displays 1%. Any advice pls. Battery is 3 weeks old.

Download root essentials app and calibrate your battery from there. Alternatively,*#0228# should work as well.

ragassagar said:
Download root essentials app and calibrate your battery from there. Alternatively,*#0228# should work as well.
Click to expand...
Click to collapse
I tried the root essentials method but my battery lost 34% of charge within 5 mins in standby, and i also tried the other method, but it was to no avail. Hence, i give up on the phone, and will upgrade soon.

Genuine or aftermarket?
Genuine will be significantly more expensive then the Chinese sourced made to look genuine batteries
Sent from Samsung S7 Edge [Oreo]

uniacidz said:
Genuine or aftermarket?
Genuine will be significantly more expensive then the Chinese sourced made to look genuine batteries
Sent from Samsung S7 Edge [Oreo]
Click to expand...
Click to collapse
I doubt, it is genuine due to the manufacture date saying it was made this year.

I'm assuming you used the Battery Calibration app by IMobS
The Basic Calibration does not work so good, but the premium is godly. Use the PREMIUM calibration by watching an ad or purchasing

123keelos said:
I'm assuming you used the Battery Calibration app by IMobS
The Basic Calibration does not work so good, but the premium is godly. Use the PREMIUM calibration by watching an ad or purchasing
Click to expand...
Click to collapse
I'll give that a try thanks