HiQuick C9026 NiMH charger
4-channel AA/AAA NiMH charger powered by USB.
Disassembled/repaired because one of the channel was not working (not detecting inserted cell).
Using micro USB or USB-C as a power source. Micro USB cable was supplied in the box.
Easy to open - no hidden screws or latches.
Charging controller without any markings.
It looks like the same PCB is used by C9023 charger (BESTON, POWXS brands) - probably identical except for different plastic shell shape.
Actual failure: broken copper under battery contact.
This copper trace was completely gone, so I've scrapped soldermask around the contact to solder it again.
As a precaution I've done the same with other contacts. Not pretty, but good enough.
Single NTC thermistor for all channels.
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