The 20V MAX* Cordless Professional Battery Booster jumpstarts 4-cylinder, 6-cylinder, and certain V8-powered vehicles. Featuring an integrated work light and USB power out, this jump starter has everything you need in one place. It runs off our 20V MAX* battery platform, so it’s compatible with all DEWALT® 20V MAX* and FLEXVOLT® batteries (battery and battery charger not included). The DEWALT DXAE20VBB 12V battery booster is a game-changing upgrade for your DEWALT tool kit. Powered by DEWALT tool batteries, including 20V MAX and FLEXVOLT (not included), this portable battery booster connects directly to your vehicle battery to get things started. Designed smaller, lighter and easier to maintain than comparable lead acid jump starters, all with the same durability and reliability you’ve come to expect from DEWALT. And with no batteries to charge, you can leave it in your car, van or pickup truck until you need it. Compatible with vehicle engines up to 6 cylinder and V8, the DXAE20VBB is perfect for DIYers, contractors and construction professionals who might need a little help getting home after a long day on the job.