BL1830 18V 21700 Battery Plastic Case (no battery cell ) PCB Circuit Board For Makita BL1845 BL1860 LXT series Li-ion Battery /////////////////////////////////////////////////////////////// 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. /////////////////////////////////////////////////////////////// 100% New, No Original makita it can fill 10 pieces of 21700 power li-ion batteries,But this is only a shell, there is no battery inside. Preparation before assembly: (1). If a new core is used, please note: a. 21700 power lithium battery core must be selected, b. A group of 5/10 cores must be equipped with resistance and capacitance to make their voltage the same. (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 same voltage value. Very important: Ensure that the voltage of each cell is the same before welding PCB. 1. " PCB " package include: As the following picture:no battery cell 2. " BOX " package include: As the following picture:no battery cell 3. " BOX and PCB " package include: As the following picture:no battery cell Note: there are no batteries in the package !!!!!! Kindly Reminder ( Very Important !!!!!!!!!): 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 fill 10 pieces of 21700 power li-ion batteries But this is only a shell, there is no battery inside. 1. there are no batteries in the package !!!!!! 2. If you need batteries, please don't place orders ! 3. If you don't have the knowledge of battery assembly, please don't place an order !