WHAT DOES 12V BATTERY CHARGER MEAN?

Black and Decker understands the effort of the dead battery, And that's why it has designed this completely waterproof 12v battery maintainer and charger. And, because it is absolutely automated, it's going to take out each of the guesswork of charging the batteries.The CRAFTSMAN Portable Power Station and 1200 Peak Amp Bounce Starter (CMXCESM256)