Wulf Mods Pro 510 Voltage BatteryA Howlingly Professional Cartridge Vaporizer Step up your cartridge vaping to the big leagues with our Wulf Mods Pro 510 Voltage Battery! Weve gone all out to give the Pro some serious bite by upgrading it with a 400mAh battery, extended 12s preheat function, and incrementally adjusted voltage range from 2. 0 4. 2v. All of this is elevated by the Pros included OLED screen, a rarity for pen style batteries, which fits directly into the base of the