The Ooze Tanker Battery is a heavy duty 510 thread vaporizer that goes to work to protect your delicate oil cartridges. The Tanker is equipped with a thermal chamber that provides a barrier around the cartridge, and insulates the oil to improve the airflow. Standard batteries leave carts exposed and out in the open; the Tanker’s thermal chamber creates a forcefield around the glass or ceramic cartridge. This protects it from the occasional drop or fall, and ensures its safety when put away in a purse, pocket, or bag. This is a 650 mAh battery with adjustable temperature. Cycle through the 4 voltage options with three clicks of the button. Different extract consistencies will require different voltage levels, so we recommend always starting on the lowest level when testing out a new cartridge. If barely any vapor is produced, increase the temperature one level at a time until you find your sweet spot. Initiate Preheat Mode with 2 clicks of the button, and the Tanker will heat at a low voltage for 15 seconds straight, no button pressing required. The Tanker’s thermal chamber improves the airflow of your cart in addition to keeping it safe. This is ideal for cartridges with a super thick consistency. Instead of having to run multiple cycles in a row to heat it up and get the juices flowing, the thermal chamber speeds up the process by providing a steady, constant temperature inside that helps to warm up the contents, rather than leaving the cart in the open air. If you’ve ever tried to hit your pen outside in the winter when it’s super cold, you’ll probably recall that it takes a bit more work to get things working properly. This is when the thermal chamber will improve function the most, under normal, warm conditions you may not notice too much of a difference. This battery is a beast! It feels strong and sturdy in-hand, and has an awesome battery life. This is a thick device that hides the cartridge, so it looks more like a nicotine vape mod than your standard oil cartridge pen. The Tanker can also be used without the thermal chamber attached; some 510 thread cartridges may be too wide for the chamber, but are still compatible with the base. The Tanker must be used with the included micro USB charger. Use of a non-Ooze charger will void the battery’s warranty. Product Features: 510 thread connection and 650 mAh Thermal chamber Protects cartridges Improves airflow Adjustable temperatures include: 2.7V - White, 3.2V – Blue, 3.6V – Green, 4.2V - Red 15 second Preheat Mode Micro USB charger included 4 color options: Panther Black, Lucky Gold, Cosmic Chrome and Rainbow Large front window on package Authentication code Limited warranty Discreet look