Thread: Charging with external battery - possible?
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shadowjk is offline shadowjk
2010-03-28 , 09:03
Posts: 1,258 | Thanked: 672 times | Joined on Mar 2009
#34
Originally Posted by myk View Post
That is not clear to me.
Isn't it up to the device to draw it's desired current? The charger cannot choose both voltage and current.
Are you saying that the charger is expected to enforce the 950mA current limit? I thought the device would do that.
OK, it is making a bit more sense as I think about it.
From my observations of N8x0, the charge regulation is done through a slow PWM (about 1Hz). Even if the software set it to the lowest, 1/255, there'd still be a huge current flowig into the battery for 4msecs every second or so..