Recalibrating Your Battery...
So, you are having trouble with your battery seemingly draining too quickly, especially after having flashed many ROMs/Kernels/etc...
It is possible that the problem (or part of the problem) is not necessarily the phone using too much power. If this is the case for you, you should see some results from doing the following:
1. Connect the phone to the charger with the phone powered on, and allow the phone to charge until it shows 100%
2. Disconnect the phone from the charger, and power it off.
3. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the battery indicator shows 100% (you can use vol-up/vol-down to make the indicator come back up when the screen goes to sleep).
4. Disconnect the phone from the charger and power it on.
5. Once the phone is powered completely on, power it off again and reconnect it to the charger until the battery indicator shows 100%.
6. Disconnect the phone, power it on, and use it.
You should only need to use this sequence one time.
Hope this helps.Joey
All FroYo'd and stuff...
- 08-26-2010, 08:46 AM #2
All FroYo'd and stuff...
- 08-26-2010, 10:22 AM #4
- 08-26-2010, 10:31 AM #5
- 134 Posts
Over the weekend I had my phone on and plugged in, It said 100% charged, for some reason I turned it off while still plugged in and the Battery indicator while off and charging didnt show 100% I didnt have enough time to let it go to 100% but was planning on doing trying that.
I will follow your steps b/c I did something like that with my old phone and it helped the battery life in my old phone. (not a captivate)
- 09-07-2010, 05:38 PM #6
- 09-07-2010, 06:02 PM #7
- 09-07-2010, 08:29 PM #8
- 09-08-2010, 01:08 AM #9
- 15 Posts
This is from the nexus one help forums. It's called bump charging and the nexus needed this all the time. I have found battery life pretty decent without doing this. If it helps you, that's great, but I have found the galaxy s phones handle charging and battery life much better than the nexus one
- 09-08-2010, 03:21 AM #10
Does this simply re calibrate the battery's charge reporting or does it some how extend the life?
I was having major issues and chalked it up to a new user playing with the phone constantly.
I allowed it to drain to the point that it shut down and wouldn't come back on then charged untill it was full. Seemed to help.
There is truth to the charge completely first idea. Lithium Ion batteries do retain some memory. Just not as much as Nickel Cadmium or Nickel Metal Hydride cells do.
On a side note:
What is the deal with Android telling me with an alert that the battery is full. I don't need the dang thing waking me up at 4am when its full!! It says disconnect from charger, does the phone not stop charging if I don't? (HIGHLY doubt that, trickle chairing Li-ion can make them go *boom!* litteraly)
Last edited by jp712; 09-08-2010 at 03:25 AM.
For example, if the phone thinks you are at 100%, but you really only have 75% charge, then it is going to drain much faster, from your point of view.
Also, I am pretty sure it stops charging when the message comes up, because I have left my phone on the charger overnight, unplugge din the morning and it immediately goes to 99% or 98%...Joey
All FroYo'd and stuff...
- 09-08-2010, 04:25 PM #12
- 09-09-2010, 10:01 AM #13
It is amazing how off whatever sensor there are...are off this much. Battery Detail showed me 100%...unplugged it, still 100, turned it off, plugged it in, looked like it was 90% fully charged....wow.
can't wait till I am done with this, see how it helps!
- 09-09-2010, 10:14 AM #14
- 09-09-2010, 11:11 AM #15
- 09-12-2010, 09:43 AM #16
- 09-14-2010, 02:52 PM #17
- 20 Posts
The Wikipedia article on Lithium Ion batteries is pretty interesting. It leads me to the conclusion that you should just use it all you like and charge it when you can.
These (wave the magic dead chicken) steps might help a little, but ultimately, the battery will deteriorate after a while.
The nice thing is that they have $3.18 batteries for these on ebay. This is one of the reasons I got rid of my iphone. Spare and replacement batteries! And they are really cheap.
- 09-14-2010, 03:21 PM #18
- 09-14-2010, 03:43 PM #19
- 09-15-2010, 10:15 AM #20
- 108 Posts
- 09-15-2010, 03:04 PM #21
- 09-15-2010, 03:17 PM #22
L-ion batteries and their charging circuits are well known for mis-reporting capacity UNTIL the battery is drained to the point that the battery's internal cut-off takes the battery off line. Then, and ONLY then, does the charge controller know just how low this battery can go. It now knows where ZERO is.
So use the phone to exhaustion shutdown. Then charge to 100% (let it charge overnight).
Repeat once every three months if needed. Normal usage will simulate this over time so you many never need to do it again.
- 11-15-2010, 12:49 PM #23
- 11-15-2010, 01:06 PM #24
- 11-15-2010, 03:05 PM #25
- 327 Posts
A lot less than you would normally with your phone, I bet.
The problem with these procedures is that regardless of whether they do or don't work, most users will modify their behaviour to maximize battery life (for some short period) afterwards, and then claim amazing results. There needs to be an objective test- so many minutes of screen powered on, so many minutes of phone use, wifi, etc., pre and post battery calibration / training / insert appropriate phrase.
Just my observation (of myself),