Build your own 18650 Li-Ion battery packs with this kit. The kits contains all the parts you will need to make your own battery pack like the one shown below.
NOTE: 18650 battery cells are not included.

INCLUDED IN PACK
1 x Heat shrink 70mm x 90mm long
2 x Battery Terminal Connectors SINGLE
3 x Battery Terminal Connectors DUAL
5 x Heat Shrink 4mm x 20mm (1 red 4 black)
2 x 4S Foam End Pads
2 x 16AWG Battery Wire 14cm Long (Red Black)
4 x Battery Terminal Protectors
1 x 4S Balance lead (17cm)
1 x XT30 Connector

To use the battery terminal connectors in this pack you will also need an “18650 spot welder” These can be purchased on eBay or Amazon.