Review on 💡 XCSOURCE 1A 5V Micro USB TP4056 Lithium Battery Charger Module (5 pcs) - TE420 by Cameron Kennedy

They work great. By the way, here is some information about the module to save you some headaches. other)-: 5V external power supply Minus B+: connect to battery +B-: connect to battery minus OUT+: connect to B+ OUT-: connect to B-LEDs: blue on, red off: charged blue on, red flashing: no battery connected Blue off, Red on: Charging Blue off, Red off: Vin too low or missing: There is no temperature input in this module. Your project will use USB or 5V power when plugged in, and LiPo charging or LiPo only when no other source is plugged in. Nice Some additional information: Current consumption with nothing connected: <0.01 Current consumption with charged battery: <0.01 Current consumption with empty battery: 1.01A