GPen Hydout 510 Battery

The G Pen Hydout is a compact 510-thread battery that combines discreet design with powerful performance. Its hidden magnetic mouthpiece cover keeps your cartridge out of sight and shielded from light, helping preserve your oil. You get 5 adjustable voltage levels (2.4V–3.8V) plus a 10-second preheat mode (1.8V) to prevent clogs. A clear LED display shows your voltage and battery life, and a 400mAh battery recharges fast via USB-C. The Hydout fits most 510 cartridges up to 2 g.