Review on Songhe Charger Module Protection Li Ion（10Pcs） by Kim Sanchez

Probably identical to many other TP4056 chargers available from Revain but this is the first time I have purchased and used such a module. The module is easy to connect and works very well. The only caveat I have is that there are no instructions and it defaults to 1 amp which will burn a lot of lithium battery cells. I found instructions online for the TP4056 chip and replaced the current limiting resistor (R3 on the board) to be able to charge my small 400mA LiPo battery and it worked great. Another caveat is that the current-limiting resistor is a small-sized surface-mount type, which makes it very cumbersome to work with. If you don't want to or don't have the opportunity to unsolder and re-solder an SMD resistor, then this module is just right for you, designed for a charging current of 1 ampere. Since you should only be charging at 0.37C (0.37x the capacity of the battery being charged), stick with 2700mAh unless you replace that resistor.