Specification: Battery type: 3.7V ternary cell, lithium manganate cell, lithium cobalt cell Applicable voltage: 50V Charge current: 28A Discharge current: 30A Max continuous working current: 28A Overdischarge protection voltage: 2.6V Overcharge protection voltage: 4.25V Balance voltage: 4.2V Temperature protection: Discharge 75?, charge -7? Weight: Approx. 51g / 1.8oz Package list: 1 * Lithium Battery Protection Board