Usage Tips:Features: The protection board is designed for Li-ion battery with 10 series cells and can be used for 3.7V ternary battery, manganese acid battery and cobalt acid battery. It has a balance function to ensure that each battery cell is fully charged at the same time. Supports overcharge protection, over-discharge protection and short circuit protection. It is suitable for electric cars, electric cars, skateboard cars, inverters, etc With temperature control protection function, safe and reliable Specifications: Brand: Unbranded Applicable voltage: 36V Applicable power: <1000W Max. working current: 40A Continuous maximum current: 25A Over-discharge protection voltage: 2.6V Overcharge protection voltage: 4.25V Charging current: Max. 10A Balance voltage: 4.2V High temperature discharge: 75 Low temperature charge: - 7 Package included: 1 x Protection board 1x Cable Remarks: 1. Due to different measurement methods, the measurement allows an error of about 2-3cm. This situation is not a quality problem. (1 inch = 2.54 cm) 2. Due to different lighting and screens, the color of the product may be different from the color. Please prevail in kind. Thank you for your understanding, have a nice day!