LiFe Battery 6.4V 1500mAh DIY for XG8 RC Transmitter SYP connector 86C2S1PB 611434023871 | eBay
6.4V 500mah Li ion Battery with SM 2P/ JST 2P/EL 2P/L6.2 2P plug RC toys 15C 14500 battery for WLtoys 18401/02 toys car parts|Parts & Accessories| - AliExpress
LiFePO4 18650 Battery: 6.4V 1500mah (Flat, 9.6Wh, 4 A rate ) with PCB & Polyswitch
6.4V 2S 900mAh 1650 LiFe Battery SM2P plug for WL HBX RC Model Truck Buggy Car 6322291665800 | eBay