Battery Replacement A1578 with Repair Tool Set Kit for S1 Apple Watch Series 1 A1802 and (1st Generation) A1553 38 mm

The battery in the kit does not charge. I used up both gaskets for the testing. I don't want to chance another purchase. Suggestions?

The watch is failing to start, then shutting down completely, suggesting the watch battery may be too low to let the watch start.

Buenas tardes funciona para un Apple Watch serie 1 38mm ?

I have a 42 mm will this work?