TP4056 vs. TP4057 Li-Ion Battery Charging Boards Quick Comparison 18650 And More

TP4056 vs. TP4057 Li-Ion Battery Charging Boards Quick Comparison 18650 And More Both charging boards have 1A charge current. Single TP4057 chip can only provide 500mA, but this board has 2 of them. LED modes of TP4057: When there is power and no battery - green light and red blinking While charging - red light Charged battery - green light Reverse polarity - no light TP4057 Li-Ion charging boards are a bit more expensive, but with the polarity protection built in, it&worth it. I will soon make a small charger with this TP4057 board and post a video.