Quote:
Originally Posted by Baffles
You won't be able to discharge the batteries in these phones deep enough to do much harm. They have internal circuitry that shuts them off if they get too low.
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When it charges, it cannot get above 4.2V.
It's impossible to discharge it below 3.7V, the device cuts out.
So it's entire range is from 3.7V to 4.2V.
Unprotected Li-Ion cells could be discharged to say 2.5V and below, causing damage.