I love my poly charger. Bad thing is.. it's only 12 volt DC current, but you can charge 4 lipos at a time. I store my boat battery in my garage during the winter with a trickle charger hooked up, and I use that. During the warmer months I use my car battery. If you use your car be sure to either check and make sure your car will start after charging a few packs or let it run while charging the lipos. Also I would suggest getting the balancers for it.