Thanks!
So what is it about the moto x dual rapid charger that makes it rapid?
A little confused on something, if full charge makes so little difference then why stop at the 85-90%?
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My guess is that it is referred to as "rapid" because it is capable of supplying the current required for a one hour charge. 1.6A for the Moto X. Lower current chargers cannot, so the charge rate is lower..... ie., "slow charge". The phone still controls the maximum charge rate, regardless of how much current any given power supply can supply. As far as I know. Has anyone seen any phone charge from 0 to 100% in less than an hour?
My guess is that charging stops at around 90-95% because the charging circuit does not stop charging.... it just holds the voltage at that level until the USB cord is disconnected. As such, holding at 100% will degrade the battery if the phone remains connected for long periods. It is also possible that charging does NOT stop when the battery gauge jumps to 100% but continues past that point. That is what my Nokia 820 did. If you took it off charge as soon as it declared it was at 100%, it would start falling from 100% immediately. But if you left it on charge another hour or so, it could take as long as 5-6 hours to fall below 100%.
This is all educated guesswork on my part. Motorola does not see fit (as far as I know) to inform us exactly how the battery charge system behaves. I do know that my Moto X starts falling from 100% as soon as I take it off charge, regardless of how long it was on charge. And it does not seem to drop below 100% UNTIL I take it off charge. That would imply that it does not charge above what it calls 100%, and it does not discontinue charging when it reaches 100% but holds it there. Soon as I find a battery monitor that works with KK I'll do some testing.
Paul