Ooze Smart Battery USB 650mAh Vape Pen (510) - VariousOoze Smart Battery USB 650mAh Vape Pen (510) Various The 650 Standard battery is one of the very first batteries we ever made! These were those big stick batteries you most likely have seen in the orange acrylic display in a gas station, your favorite liquor store, or that convenience store you hit before every road trip. It was time we made some improvements to this OG Ooze pen, and the Smart Battery is the revamped version. The two biggest upgrades