A dead car battery is as sure-fire a way to ruin a day as a vehicle owner can find (save for perhaps a car crash). If you're shopping for DeWalt jumpers through The Home Depot these days, you'll find three different models of jump box available for purchase. If you're eyeing DeWalt's 2,000 Peak Amp Jump Kit, that unit is selling for $209. If you need a little more battery jumping punch, Home Depot is listing the 2,500 Peak Amp unit at $219. Here's what you need to know about keeping these DeWalt jump box starters charged.