Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si For 36V 18V MultiVolt MV Li- Battery ,No Battery Cell ! This product is component without battery core. It is used to repair and assemble batteries pack, only for people who are familiar with battery performance and have practical experience in battery assembly. It can automatically adapt to the voltage requirements of 36V and 18V different charging , and automatically two different output voltages, 36V and 18V, according to different products. Preparation before assembly: (1). If a new core is used, please note:a. 18650 lithium battery core must be ,b. A group of 5/10 cores must be equipped with resistance and capacitance to make their voltage the . (2). If the old battery is repaired, please test the voltage at both ends of each cell. If the voltage is different, please charge each cell to the voltage value. Very important: the voltage of each cell is the before welding PCB. colour:Black+green Material:plastic Package Contents: 1 set x Li- Battery Case(Some accessories have random colors and styles, you can't the specified color style, the function is the ) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.