Battery 650 MAH he G-go 650 mAh Chrome Features smart chip heat up for 15-seconds, to give needed power and long vaping draws Variable voltage, 3.4 (TERPY) – 3.8 (ROBUST) “Session Mode” this allows your battery to fire continuously for 15-seconds. Compatible with any concentrate atomizer or any concentrate cartridge. Can charge and vape at the same time!