iPhone battery calibration? Yay or Nay?

[Stealthipad]

Not true. See the apple website about batteries and calibration. You should do this every month or so.

Just because Apple says to do it does not mean it is good for your battery! Fully discharging the L-Ion battery WILL decrease the battery life.

I would not suggest anyone to do it unless you are having problems, then you have less to loose. If all is working fine it is a WASTE of your battery longevity.

 

[Savor]

YES!

Last week, I thought my battery had gotten worse because I noticed 1% would drain after 15-20 min instead of the normal 30+ min and would always get usage time of below 9 hours. I thought the batt was just getting weaker from the charging and having it for over 6 months. Then this week, I decided to calibrate it until it went completely dead. Then I rested it for a few minutes and then charged it overnight. At least 8+ hours. Next day, I got my normal 30+ min when the first 1% drains and got over 10 hrs & 30 min usage time during my last two days of use. I charge it every other night now. This is with no music playing, less apps on the multi-task bar, and airplane mode because 3G/Edge/Location Services/Push Notification drains. This is with mostly WiFi browsing and occasional 2D games and video streaming. And the brightness wasn't always dim either, but that can help conserve batt life too.

Drop it to 0% and have a long charge for it overnight. Don't just give your phone 2.5 -4 hr charges. Go beyond it. It really helps. When I get down to 80%, my usage is about 3 hrs. By 70%, it is 4 hrs. And by 60%, it is 5 hrs. Right now, I am looking at my phone and batt life is at 53% with almost 6 hours of usage! I will definitely go beyond 10 hrs again today. Remember, I am not playing songs because it can boost the hours easily and I am still on the original 4.0 firmware. YMMV.

 

[-aggie-]

Just because Apple says to do it does not mean it is good for your battery! Fully discharging the L-Ion battery WILL decrease the battery life.

I would not suggest anyone to do it unless you are having problems, then you have less to loose. If all is working fine it is a WASTE of your battery longevity.

It has no affect on battery longevity. It's all about cycles. Discharge and charge: one cycle
Discharge to 50% and charge. Repeat. One cycle.

 

[andlil]

This method is little bit lengthy but u will give rebirth *100% to ur battery with this method..
first charged ur iphone to 100% then open up ur phone and pulled out battery. There will be 4 terminals.. we use only the 2 end terminal.( the big one which is at both end) positive and negative.. first find out the positive terminal and negative terminal with the multimeter.. and then charge ur battery with (5VOLTS) charger.. ur battery is 3.7 volts but u have to use 5 volts charger to charge for 4 hours.. thats it... u can also use ur iphone charger to charge battery but (DO NOT SHORT CIRCUIT battery or charger).. now put battery to iphone and reassemble it... now use ur iphone to till 1% or use it untill shutdown..then charge normally till 100%..

This is insane, do not ever charge a LiIon/LiPo battery without correct charging control, it can catch fire and explode!

 

[I7guy]

This is insane, do not ever charge a LiIon/LiPo battery without correct charging control, it can catch fire and explode!

And even if there is no fire the phone can be damaged if one doesn't know what the are doing.