TP 5100 4.2v and 8.4v Dual One/Two Battery Protection Board
 
Features:
Input voltage: 5-15V DC power supply.
Charge status: full and unloaded blue lights, charging red.
Double 8.4v / 4.2v lithium rechargeable single .
Programmable charge current. 0. 1A-2A .
Programmable steady precharge current 10% -100%.
Wide operating voltage, maximum reach I8V.
Red and green LED charge status indicator.
Chip temperature protection, overcurrent protection, under-voltage protection.
Battery temperature protection, reverse battery shutdown, short circuit protection.
Switching frequency 400Khz, usable inductance 20uH, and more.
PWR_ON Power battery for switching control.