/diy/ - Do It Yourself

>>1474743
>do you really have to use that original PSP charging chip??
No, but it's convenient. This way you can use the psp charging port and don't have to take the battery out or cut any extra holes in it to charge.

I just got the chip out of one of the batteries, the board had B+ and B- printed on it, but when charging with the cable 160mv comes out in reverse. Tried connecting B+ and - to my benchtop power supply at 3.6v and it wouldn't power on. Maybe it's looking for some characteristic of a battery like internal resistance or maybe the cell wasn't 3.6v and it's doing some voltage conversion on the chip.