Forum Discussion

Scott_Malkinson's avatar
Oct 24, 2016

generator vs batter bank w/ inverter

Hey guys. Im building an expedite van and im not sure which way I want to go for power usage. I will need to power an espar heater, rooftop a/c, ( coleman cub 9200 btu ) tv, laptop, small lights, possibly an xbox and possibly a small little refrigerator. The 1.7 cubic foot kind. I will need a generator for the rooftop a/c regardless and a battery for the espar.

So, my options are: Larger generator for everything ( I was thinking champion 3500 or 3100 watt inverter generator ) and a single deep cycle battery for the espar. I think the espar can wire directly to the battery so no need for an inverter. Or A large battery bank with an inverter for everything other than the a/c and a smaller generator for the a/c. Get a larger or second alternator to charge the battery bank when im driving, which will probably be everyday, but I may have to sit for several days at times.

Im leaning toward the larger generator and a single battery because it sounds much simpler and don't have to worry about losing power at all. Plus, im going to have to buy a generator anyway for the a/c, but to be honest im a pretty big idiot about this kind of thing so I really don't know what the advantages of either are. I would love to hear some opinions. I also see some people with a battery bank AND a larger generator to charge the bank. If youre going to run a large generator anyway, why not just power directly off the generator and save the money and hassle of a battery bank?