Q1 - @tlfong01 I don't know, the local seller didn't specify where they bought it and what kind of brand it belongs. – David McTravord 16 hours ago
Q2 - @tlfong01 and for the module, then how can I charge the battery with? I use TP4056 for charging. And the LM2596, I'll look into it. – David McTravord 16 hours ago