Gelball Battery LJ Li-ion 4.44 Wh 14500/500mAh 7.4V 218.45 CZK 152.92 CZK Rechargeable battery for use with Gelblasters. BUY Share Article Number: 4160 Information Reviews Rechargeable battery for use with Gelblasters. Works with the following Gel Blasters: Gelball M416 Gelball Apex