Customized 26650 18650 21700 26700 Battery Pack 3.7v 7.4v 1S4P 2S4P 8000Mah 12000Mah 18650 Lithium Battery With Wires & PCB $3.00-4.50 Application Power Tools, Consumer Electronics, Toys, Uninterruptible Power Supplies, Electric Wheelchairs Battery cell 18650/21700/32700 OEM/ODM Yes(Accepted) Type LI-lon Battery