The Ooze Twist Rainbow 510 Threaded Pen Battery comes in one of three different battery sizes: 650mAh, 900mAh, and 1100 mAh-- each battery size has varying voltage. Select a voltage level between 3.3-4.8V and press the button to heat the battery for up to 20 seconds at a time. Chargers are not included.

• FLEX TEMP | | Each Ooze Twist vape pen battery features an adjustable temperature dial on the bottom that twists to select a voltage level between 3.3-4.8V.
• 510 THREAD | Compatible with all 510 thread cartridges, and is intended for pre-filled oil, extract, delta-8, and essential oil cartridges.
• SAFE SESH | The battery will heat for a 20 second cycle before automatically stopping the cycle. This prevents the battery from overheating and preserves the terpenes in the cartridge. Click the button twice to activate prep mode; the battery will heat for 15 seconds without holding down the button.