The ESYB M2 Dual Bay Battery Charger is a portable, high-performance vaping accessory. The M2 Battery Charger has two independent slots for monitoring and charging. Featuring fast charge technology at 1.0A rate, the M2 Charger contains a LED battery indicator that's user friendly. The built-in internal system features full safety features such as reverse polarity, anti-reversing, short-circuit, over-current and over voltage protections. Made of ABS fire retardant material with heat dissipation, the ESYB M2 Dual Bay Battery Charger is made with the quality material and delivers the best charge possible for your batteries.