The protection board is for 13 series cell - batteries, it can be used for 3.7V ternary batteries, manganese acid batteries and cobalt acid batteries. Support overcharge protection, over-discharge protection, overcurrent protectionand short circuit protection. It is suitable for electric car, electric power assistant car, skateboard car, inverter, etc. With temperature control protection function, safe and . Applicable voltage: 48V Applicable power: Less than 2500W Max. working current: 60A Continuous maximum current: 40A Overdischarge protection voltage: 2.6V Overcharge protection voltage: 4.25V Charging current: max. 10A High temperature discharge: 75 Low temperature charge: -7 Weight: about 60g Size: 70x56x9mm Colour:As shown Material:PCandMetal Package Contents: 1 x Protection Board 1 x Cable(Due to different product batches, the appearance may be different, the function is the same) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.