Features 1、Used for 10 series 15A 36V/37V li-ion batterys. 2、Protects batterys and prolong the service life of batterys. 3、Equilibrium function, keeps batterys in balance and long service life. 4、Overcharge conservation, over discharge conservation, over current conservation, short circuit conservation, temperature conservation. Specification Features: Used for 10 series 15A 36V/37V li-ion batterys. Protects batterys and prolong the service life of batterys. Equilibrium function, keeps batterys in balance and long service life. Overcharge conservation, over discharge conservation, over current conservation, short circuit conservation, temperature conservation. Specifications: Cable length: 300mm / 11.81in Board size: 61 * 33 * 9mm / 2.4 * 1.3 * 0.35in Package size: 140 * 98 * 10mm / 5.51 * 3.86 * 0.39in Package weight: 43g / 1.52ounces Package List: 1 * Batterys conservation Board Package List 1 * Batterys conservation Board