This product is componentwithout 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 18650 Li-ion batteries. Note this is plastic shell, there isno batteryinside. Type: Battery Storage Box Model Number: DCB200 colour:Blackandyellow Material:plastic Package Contents: 1 x Battery box (with accessories) 1 x PCB board(The color is random, and the specified color cannot be selected) Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia