G Pen Gio BatteryDescription Nothing is worse than wanting to take a pull from your vaporizer and realizing the battery is dead. But fear not, now you can vape with confidence on the go, knowing that youll always have a safe, reliable and convenient way to charge up. Enter, the G Pen Gio Battery. No one wants to lug around a heavy awkward battery. Luckily the G Pen Gio Battery is ergonomic and pocket friendly, making it easy to stash on your person or in your handbag.