Valken 7.4v 1000mAh Thin Stick Lipo Battery (LiPo). Fits most guns - including the M4, MP5A4, ARX
160, Elite Force Tavor 21, most JG/G&G/Echo 1 Crane Stocks, May fit
in KWA Buffer Tube too. A very small LiPo stick battery to fit in a lot
of guns. This battery is very thin and tiny!See Technical Specs Tab for warnings and charging information. Requires LiPo specific charger. Charge into 4-prong balance plug ONLY (not in the Tamiya output) with LiPo charger, in a safety bag only.