Features: The protection board is for 10 series cell Li-ion batteries, it can be used for 3.7V ternary batteries, manganese acid batteries and cobalt acid batteries. It has balance function which would ensure each battery cell being fully charged at same time. Support overcharge protection, over-discharge protection and short circuit protection. It is suit able for electric car, electric power assistant car, skateboard car, inverter, etc Suitable for several kinds of batteries, safe, reliable and easy to use. Specification s: Applicable power: <1000w Maximum working current: 30A Continuous maximum current: 20A Overdischarge protection voltage: 2.6v Charging current: Maximum 10A Weight: 46g BMS Protection Board Wiring Steps 1. Firstly connect the batteries in series 3. Firstly connect the distributed cable, connect according to the diagram, and insert the cable port into the board port after checking it is correct (first connect the battery, then insert the board, the step cannot be reversed). 5. Solder the battery negative B- to the port marked B- on the board. 6. Both the battery output negative electrode and the charging negative electrode of the same port board are connected to the port marked C- on the board (the P- port is just floating). 7. Separate port (different port) board, the battery output negative pole is welded P-, and the charging negative pole is welded into the port marked C- on the board. Package included: 1 x Protection Board 1 x Cable Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .