Bortivier 18650 Battery Power Bank Box 5V 2.1A LCD Display 20000MAh Power Board for 6X18650 Battery DIY Powerbank Case(White)

Battery model: 18650 (not included) This model is a non-mobile power supply product of welding-free mobile power supply (circuit board + shell), excluding the battery. The battery needs to be purchased by the customer to install 18650 (flat head) before it can be used. Do not put the battery in reverse, it damage the motherboard, (the is the positive pole, the spring is the negative pole), please put it in correctly, there is no , the shell cannot be disassembled twice, please fix it at one time! Installable cells: 6 sections