I do not have a bunch of electronics in the vandaminium save a small Acer net book, a Kindle reader, and an old portable 10"DVD that no longer works on it's own battery and has to be plugged into 110v electricity (I lost the 12v cord). These are the "entertainment" electronics. I also have 12v incandescent lighting, a 12v Edgestar refrigerator, a Sony car stereo, a CB (never used) a 12v pump for my sink, and 2 12v fans. These items are powered by the marine battery which is charged from a small solar panel as well as the alternator when the car is running. You may notice the lack of an inverter. With the exception of the DVD player and computer, everything I run is powered from the 12v system. I charge the computer up while I use it at coffee shops, surfing the net or writing. As I don't boondock that much this works out great. For boondocking I will add a small inverter and more solar panels. A small generator might be on the horizon as well. I find that if I drive a bit everyday my house battery stays charged but if I stay in one place my battery only lasts 2 days. More solar and another deep cycle should allow me to stay out for a few more days which is the goal. I would like to be able to stay in one place, away from civilization for 7-10 days without having to drive the van to charge batteries. The generator would alleviate this but I don't want to put a stinky, gas generator in the van and I dont want to mount it outside and blow my stealth ability. If I add more solar panels they are not going to mounted to the roof of the van but put on a rack with a quick disconnect so I can aim them at the sun for more efficiency. When they are not in use they will slide into a special sleeve under the bed. Tha's the plan anyway. Amazon sells a 45w kit as does Harbor Freight. This may be my next purchase.