Thread: Aura ONE Kobo Aura One owners thread
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Old 09-01-2016, 07:55 AM   #110
davidfor
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Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by Sweetpea View Post
More importantly, there are a few things that will destroy them... The most important thing you mustn't do with Li-ion batteries is let them run dry. What you can do is let them drain to about 20% and then charge them again. Not because the battery needs it, but because the software needs to be calibrated...
And that's another one of the bits of advice that's not really right.

Li-Ion batteries have no real problem with running them down to zero. The problem is if you leave them there. If you leave them long enough, they will self-discharge until they get to a point that recharging them is dangerous.

And if the point is to calibrate the meter, you have to discharge the battery completely. Then recharge it completely. And repeat two or three times.

You are right that it is better not to completely discharge Li-Ion batteries. But, it is also better not to completely fill them. A suggestion is to keep them between 30% and 70% or 20% and 80%. But, doing that is generally impractical, and probably won't extend the battery life enough to make the hassle worth it.
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