Thanks Carmine, I guess this means there is no on-board charge
management chip. How about using this board from sparkfun:
it is also based on 73831.
On Mar 19, 8:23 am, Carmine Noviello <carmine.novie...@gmail.com
> I'm working on a similar solution. I'm designing a simple li-on battery
> charger to integrate with pico-board using J21 connector. It's based on the
> Microchip 73831 battery charger IC, and it's suitable for USB powered
> I'll submit schematics and layout as soon I complete them.
> Hope it helps,