Here are two threads to get you started. I found them by googling inverter eplaya
. You might try some other combos if you like.gonna buy a deep cycle battery & inverter. Recommendations?viewtopic.php?f=3&t=45886batteries, inverters, and power math for the masochisticviewtopic.php?f=3&t=41699
Check the online retailers for reviews, but try to buy one in your hometown from an auto store or other large place with a good return policy. The well-rated powerpack brands are (apparently) quite good, but they have to be charged fully every 30 days or so, and should not go too long from time of manufacture to first charge, or they fail. Online site reviews suggest that trying to return a bad powerback purchased online is almost always a HUGE pain in the tail.