Do you want a slim, powerful, and adjustable voltage battery? The ROVE Slim Battery has you covered. Designed to perfectly pair with Rove cartridges, this battery features 350mAH capacity for a charge that lasts as long as you need. When you need a charge, just plug the charging cable into an outlet for a quick and painless power-up. Now comes with 3 different power settings to fine tune how big of a hit you want to get!