I own a 2010 Fusion Hybrid. Bought it slightly used and have enjoyed it. You do not have t plug these vehicles into anything. The breaking system charges the battery. I have registered up to 46 mpgs. The car is solid, rides nice, and has a host of amenities. I actually want to trade my 2011 Honda CRV (which gets no where near the rating it stated on the sticker in mpgs) in on a new Escape Hybrid. As for the battery, I have the extended warranty so if anything goes wrong with it, it’s on Fords dime. Seriously, go and take a look at the hybrids, I have saved tons of money on gas, and it’s nice seeing a sedan that states you have “765 miles to empty”. I usually fill up every two weeks, before I was filling up twice a week. Big big difference.