My Trustfire X9 came with a two-bay POS that had no termination. I say had because I gutted it and plan on installing a pair of those TP4056 boards in there and tie the power inputs together so one usb input will independently charge two cells. I’m thinking of it as a travel/top-off charger. [my i4 terminates at 4.15v]
I’m sure that the TP4056 boards will get me most of the way there but I still need indication of charging status. Does anyone know of a USA-based parts retailer that can sell me a couple red/green indicator LED’s?