We bought the 18650 cells from Sumsung & LG to assemble hoverboard battery. The 18650 cells are tested the capacity & interal resistance and choose the similar value of cells in one pack. The spot welding is using for connection the 18650 cells, because of it's much strong.
All new custom design BMS (Battery Management System) keep the hoverboard battery in good working for long time. The protection circuit include protection ICs which made in Japan for short-circuit, over-charge, over-discharge. There is balancer built-in BMS. They can help to charge every cells to meet same voltage and keep longer working time. We also add an heating panel on the BMS. It can protection the parts and heat dissipation.
We wled the cells to BMS with strong wires carefully. The insulation paper keep the all cells without heat, shock. The tape bundle the cells and then the heat shrink tape pack the whole pack.
After assemble 18650 cells 10S2P and BMS, we will do testing to ensure the battery pack work well before shipment.
We accept retail & wholesale for this hoverboard battery. Please send us an mail with your quantity and quetions to mail firstname.lastname@example.org, we will send you good price.