The protection board is designed for 13 series ion cell batteries, it can be used for 3.7V ternary batteries, manganese batteries and cobalt batteries. Support overcharge protection, over-discharge protection, over-current protection and short circuit protection. Suitable for electric car, electric power assistant, skateboard car, inverter, etc. With temperature control protection function, safe and reliable. Applicable Voltage: 48VMoc: less than 2500WMax. Operating Current: 60A Continuous Maximum Current: 40A Overcharge Protection Voltage: 2.6V Overcharge Protection Voltage: 4.25V Charging Current: Max. 10A High Temperature Charge: 75COlow Temperature Charge: -7C Weight: About 60g Size: 70x56x9mm Color: As Shown Material: PC+Metal Package Contents: 1 x Protection Board1 x Cable (Due to different batches of products, 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 to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.