I need help. I'm trying to figure how long my lights will last on paper. 12vs 24 volts. I have 2 battery's with a 105 amp hr at 20 hrs

And at 12 volts the rig pulls 50 amps. Can I get some help?

Because according to my calculations it's 7 days lmfao

Not quite but close

I can tell u my lights pull 45 amps and I have it hooked to one battery with motor charging it. It will last about 3 hours before I change out bc lights not as bright. Hook up other battery and finish night out

Bout three hours before they should be charged again if you start with full batteries. Will probably go a little longer, but might shorten the battery life by doing so.

http://www.digikey.com/us/en/mkt/calcul ... -life.html

Here is my dilemma, looks like if I hook up 12/24 volts I'm gonna get about 4 hrs out of em. So is there any thing better than hooking up 3 batteries partallel 12 volts, (180 lbs)

3 batteries will give me bout 6 hrs

Not really man, other than a small generator and converter, but then you could just run everything off your starting battery and not have to worry bout anything but gas... No extra battery weight at all, and those little generators only weigh about 40-50 lbs.

That's the way I would do it, unless I was running twin cdi motors and I ran the motors all night. The little inverter generators are extremely quiet. Won't take up as much weight, don't ever have to worry about keeping them charged, won't need to be replaced as often. It's a win, win, all the way around, IMO. If I were building a new setup right now, that's definitely the way I would go.

do they let you guys run genny's down there? I use the Honda 2000, that is the way to go shot from front of boat put genny in back