Wild Mountain RV has a great selection of Deep Cycle RV Batteries for your Trailer or Motorhome. Everyone's power needs are different. If you are primarily plugged in when camping, a single 12 Volt battery will usually meet all your needs. If you are a weekend warrior and require a few days of power, 2 - 6 Volt batteries will meet most of your needs. Adding a 160 Watt Solar Package will also ensure you don't run out of power. If you are the true 'Off Grid' type of camper, then Wild Mountain RV can set up your RV for much longer durations.