Features: The protection board is for 10 series cell lithium Lithium ion battery, it can be used for 3.7V ternary battery, acid manganese battery and cobalt acid battery. 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 suitable for electric car, electric power assistant car, skateboard car, inverter, etc. With temperature control protection function, it's safe and reliable. Specifications: Applicable voltage: 36V Applicable power: <1000W Max. working current: 30A Continuous maximum current: 20A Overdischarge 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 ℃ Weight: 46g Notes: New and old models are shipped randomly. Please allow 1-3mm errors due to manual measurement Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package included: 1 x Protection Board 1 x Cable