For example, if my phone is on charge for 12 hours, I'm guessing that doesn't use 4X the electricity of charging for 3 hours?
JanSt / MOD
Nov. 8, 2012 at 18:01
Depends... there ARE dumb-chargers and so-called smart-chargers....
Nov. 9, 2012 at 10:28
All modern chargers will start off with what they call a "fast-charge". Depending on the phone of course, this means you can go from 0 to 80% charge within 2 hours (assuming minimal use during that time).
From then on it'll go into a "trickle charge", where it very slowly nudges it up to 100% (this is partly to prevent overcharge). From then on, the charger will only supply what the phone actually needs.
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