Werner Almesberger wrote: > The PMU may be able to keep up with this, but I'm not sure the > battery will like it. If you google for "short charge cycles", you > find claims that this kills Li-Ion batteries. > > In particular, if you look at page 84 of > http://people.openmoko.org/tony_tu/GTA02/datasheet/PMU/PCF50633UM_6.pdf > you see that dropping below the USB detection threshold (~4V) will > reset the charger state machine and thus defeat the mechanism that > avoids trickle-charging the battery when it's full. > > Harald posted a while ago that such trickle-charging changes the > battery's chemistry and damages it.
I see. A homemade charger should stay between 4V and 5V then. Cutting below 4V shouldn't be hard to do. Helge Hafting _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
