/diy/ - Do It Yourself

>>1218190
I don't think I can pull much current out of the 3.7V USB anyways, I'm getting 350µA through a 100Ω resistor. I guess this means I don't have to worry about it draining my battery down past safe levels if it's inactive while my load is still turned on. But if that happens I might have to worry about my filter capacitors feeding back into the battery bank. Hopefully that will only happen in the event of a microcontroller bug.

The PCB's control chip doesn't have any writing on it at all, so that link helps, but its not the one I've got, since it only supports 1.2A charging and doesn't have a solar charging feature. How did you find that particular IC?

Pic related is how the buttons and LEDs connect to the IC. I can only assume that the two pins are multiplexed get the right output signals because all LEDs appear to be able to blink independently. I don't like it. I will desolder one now to see what sort of power supply it has.