bklein Posted March 29 Share Posted March 29 I have a few CTX batteries that fail to work with new cells, so I’m thinking the protection board is bad. I have two varieties of protection boards purchased from China but how do they interface to the charger/flex circuit. Their diagram just shows a P+ and -. Perhaps you have found a better replacement board for sale? edit: found good info from SUBE on find forum 1 Link to comment Share on other sites More sharing options...
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