[Fascinate General] landshark68:
Hello everyone. High end poster over at Android Central Fascinate forums, just starting to post more here. Gunnermike who posts at both quite a bit and I have been collaborating on the battery issue over there. So far this is what we have come up with:

The procedure we are using to attempt to improve battery life starts as follows:

1. Charge completely to 100%

2. Turn off phone while still attached to charger and charge to 100%

3. Turn phone back on and once more charge to 100%

4. Watch the phone at this point and as soon as it hits 100%, now it is at a true 100%.

5. Open Terminal Emulator and run Adrynalyne's battery stat script by doing the following:

a. Next to the $ type su and hit the enter key

b. Super user permission will be granted, and a # will appear. Type bstats, hit enter key

c. Phone will reboot in a few seconds

6. Run the phone normally until it gets down to about 5%, then charge fully to 100%. No need to turn it off again to continue charge, just leave it on and charge to 100%. If you did this correctly and were to turn it off it should only take less than 5 seconds to reach full 100% after you turn the phone off.

That's because you aren't really improving the battery life per se by doing this. You will see a slight improvement, not much. It's just that what the phone is showing as your battery percentage and what the actual battery percentage is are not matching up. This wiping of battery stats is syncing up what the phone and battery are reporting, so you get a more accurate sense of where you are. Many people who have used this method have reported slightly better battery life, but as I have noticed and told everyone, you won't see any difference for about 2 or 3 days after lengthy discharge and charge cycles.

If this method does not work, then the suggestion is to do the additional steps of:

7. Continually reboot until your battery consistantly shows 3-5%.

a. The goal here is to deplete the battery as fast and as safe as possible. You want to reboot the phone until you continually get around 4 % - 2 %. The battery its self will not let the phone ask for too much. There are other posts on other forums that will say you can stop at 10 %. This is not always the case. After several restarts my phone got to 41 %. And magically the next boot it showed 7 %. The next boot was 14 % then back down to 10 % and on it went, up and down. An hour later my phone was down to 4 %.

8. After you get a consistent charge reporting and are down to 2-4%, charge your phone to 100%.

a. It is best to do this last step with the phone off

DO NOT however discharge your battery fully to the point where the phone turns off. I have done some research by googling "completely discharging a lithium ion battery", and every article I read said not to completely discharge a lithium ion battery, especially multiple times. It will ruin the battery. You may get lucky doing it once and not causing damage, but everything I read says repeatedly doing it will definitely ruin the battery's ability to hold a full charge.

Everything I read also indicated these other tidbits:

1) Ever wonder why now that we have accurate battery mods when you charge your phone completely overnight, then pull the phone off the charge and your accurate battery mod immediately goes from 100% to anywhere from 95% - 99%? That's because these lithium ion batteries have a circuit or on board computer that regulates the charge. This is to prevent overcharging which can also ruin the battery. The circuit stops the battery from accepting a charge once it reaches 100% charge, then allows the battery to slowly drain until it is at approximately 95%. Then the circuit allows the battery to charge to 100%, drain back to 95%, and continues this cycle until you unplug the charger. So you may see your battery is full when you have it on the charger, but then it immediately drops to the correct current charge percentage. I don't know about the rest of you, but that at most 5% is not going to make the difference between my battery making it through the day, so I just unplug my phone when I'm ready to leave and don't worry about it.

2) Our batteries work best when they are kept at least 40% charged. So there is no harm in throwing your phone on a charger in the middle of the day, or your drive home from work to keep it above the 40% charge as much as possible. I read the previous poster referring to the 300 charge cycles for the lithium ion batteries and that is referenced in at least one of the articles. Specifically about this partial charging not shortening the life cycle of the battery because the 300 refers to complete charge cycles.

I hope some of this helps. You can do the same google search I did to access the articles. Or I couldn't find any rules & regs here at XDA about what is OK to link other than wares, so here are links to some of the articles backing up what I just wrote:

http://www.google.com/url?sa=t&sour...sg=AFQjCNFvI_vtqRa8wmXJytokw_L0l_TD_w&cad=rja

http://www.google.com/url?sa=t&sour...sg=AFQjCNHne9FL4Wl5pn59xQRr-4HLu31J4Q&cad=rja

http://www.google.com/url?sa=t&sour...sg=AFQjCNESPc2IOJ-UL5TYOIBds0Ka3YAr4A&cad=rja

http://www.google.com/url?sa=t&sour...sg=AFQjCNEQZjZ_rKc2iLXpo3Ei6NU_mDwrcA&cad=rja

http://www.google.com/url?sa=t&sour...sg=AFQjCNHalpQBRTair5pzs3QfFrdrp8xc7A&cad=rja

Like I said, I couldn't find any specific rules about what I shouldn't link to, so if any of the links are not cool, the mods should just remove them. I will keep looking for the XDA forum rules & regs so I can be more informed.

Thanks,

Shark