Originally Posted by VanillaCracker
Found this while browsing threads:
*Please take the following lightly, and consult the comments posted on page 5*
"I used on trick which I have learnt from one of my technician friend working in Nokia. He told me that -
a) Always let ur battery drained completely and then charge. This will increase your battery life and performance.
b) Never plugin plug out ur charger very frequently.
c) Most important - Each battery is having reserve portion and if u want to charge this portion, then let ur battery drained completely ( i.e.till ur cell get switched off automatically) then plugin the charger in switched off mode and keep it off for next 3-4 hrs with charging. It will let ur reserve portion charged. You can do this once in a week.
Believe me, I observed tremendous increase in by battery performance." - Credit to Silver2706 for posting that
This is true for Ni-Mh/Ni-Cad batteries but not true for Li-Ion and has a detrimental effect on long term battery life and what it can store. This has been tested many times and if you even read anything about Li-Ion batteries, you find information as to why you shouldn't deplete your battery all the way down, nor "top it off" by replugging it in the charger after it has fully charged. There is no "reserve portion" of a battery that you need to "charge" up. Each cell is charged no matter what. Although it is true that it is better to leave your phone off while charging so the battery charger can maintain constant current to the battery and control temperatures better.
But now with newer technologies being developed, this shouldn't be a problem anymore.... hopefully... but people still do it anyways because thats just what they are used to doing, and they never really change.
My #1 tip is to get an extra battery and standalone charger to be able to charge each battery the same every time and not be limited by a cord, so you can just swap out the battery when it gets low.