Vertex - 350VV Battery Kit - Black

- press button 5 times to lock/unlock - press button 2 times to pre-heat cartridge (perfect for carts that are clogged or has been sitting around for a while) - press button 3 times to change voltage (blue light means 2.6V, a green indicates 3.2V, and red means 4.0V output) NOTE: DO NOT charge Battery for over four (4) hours. DO NOT use a Wall Adapter/Power Block rated higher than 1 Amp (or 1000mA). DO NOT charge unattended or overnight Contents 1x Vertex 510 Battery 1x USB Charger