/diy/ - Do It Yourself

>>2701128
JST PH series, 2mm pitch. The other side of these cables are typically XH.


An update from a couple threads ago:
After:
>replacing fuse (low voltage side, inline with main battery charge terminals)
>blowing fuse (high voltage side)
>replacing fuse (high voltage side), measuring 0v on any of the low voltage side, and replacing TOP255EN flyback switcher
>blowing fuse (high voltage side)
>measuring failed diodes in the rectifier bridge, replacing those and the fuse (high voltage side) again
>replacing a couple suspect looking caps just in case

I now have this. 5V going to the controller, 22V on what I believe should be 12V going to the battery, and the controller seems to be functioning with correct LED indicators. It loops attempting to charge, then I believe overcurrent or overtemperature kicks in and shuts off the charging circuit. But I believe the 22V is an error and I should be getting 12V on that rail instead. I've got a new charger that I'm not using, so I guess my next step is to open that one up and find out exactly what voltages should be where, but I doubt it's the same PCBA given the 4-5 year gap between buying the old one and the new. Still, I should be able to verify what voltage the battery terminals should be at while charging.