HIGH QUALITY&DURABLE: Pure copper plated joints, fine solder joints, resistance to plug, and good contact to ensure high-quality, durability and a long life. The outer casing is made of environmentally friendly PP engineering material, which is soft and durable. | EASY TO USE: No welding required, 128 type environmental protection copper terminal design, no need for soldering iron and cumbersome tools, easy wiring. The housing is designed with a folding buckle for easy assembly and disassembly without tools. | HIGH COMPATIBILITY: It can connect all kinds of serial devices. Such as computer and tax control machine, digital camera,PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication. | HOMMIZATION:Each set of products is equipped with a set of cable pressing plate to prevent easy removal of the connected wires; Shell with non-slip design. | INTUITIVE: All signal ports are clearly named and labeled on both sides of the board for quick wiring.

HIGH QUALITY&DURABLE: Pure copper plated joints, fine solder joints, resistance to plug, and good contact to ensure high-quality, durability and a long life. The outer casing is made of environmentally friendly PP engineering material, which is soft and durable. | EASY TO USE: No welding required, 128 type environmental protection copper terminal design, no need for soldering iron and cumbersome tools, easy wiring. The housing is designed with a folding buckle for easy assembly and disassembly without tools. | HIGH COMPATIBILITY: It can connect all kinds of serial devices. Such as computer and tax control machine, digital camera,PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication. | HOMMIZATION: Each set of products is equipped with a set of cable pressing plate to prevent easy removal of the connected wires; Shell with non-slip design. | INTUITIVE: All signal ports are clearly named and labeled on both sides of the board for quick wiring.

HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours. | MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection for your devices, your chargers and most importantly:you. | LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption. | WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc. | ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output.