Introducing our upgraded 510 VV battery with dual charging capabilities (USB-C and iPhone) and a sleek 12mm diameter for seamless compatibility with all 2.0ml tanks. This versatile battery features a standard 510 connection, accommodating most cartridges and tanks. Its 2-click preheat function allows you to adjust between voltages (2.4v, 2.8v, 3.2v), ensuring optimal performance for various oil viscosities. With easy one-button operation and standard USB charging, this battery is your go-to vaping accessory. 510 Dual Charger Vape Battery Specifications: 650mAh battery capacity. 510-thread for most carts and tanks. 12mm diameter (fits 2g tanks). Preheat setting (2-clicks). Variable voltage (2.4v, 2.8v, 3.2v). LED lighting. 5-click on/off feature. USB-C or iPhone dual charging.