Generator questions!
We are looking at buying either a 3000W Honda inverter generator, or the 3000W Predator brand inverter from Harbor Freight. Will be using these to intermittently charge 2X 6V Trojan golf cart battery...
Forum Discussion
coolmom42 wrote:
From what I can gather a furnace blower typically pulls about 7-10 amps, depending on size. I'm picking 8 amps without knowing the model of the furnace (RV is in IL right now and I am in TN.) So if the furnace runs say 8 hours out of 24 (very generous estimate), that would be 64 amp-hours.
Our other battery usage is very low---no big inverter for microwave or coffeepot or hairdryer. We run the water pump and LED lighting. We have a 12V outlet that we use with a 400W inverter to charge electronics, but that is often done in the tow vehicle while out and about. Very little or no TV use.
I'm going to estimate 80 amp-hours/day and I think that's generous based on our habits.
So we need a converter that will replace that 80 amp-hours in a reasonable amount of time, say 4 hours or less. That means a converter with a bulk charge mode of 20 amps or higher. So a 30 or 40 amp converter should serve us well.
We will likely be at an electric site at least once a week, for 24 hours or longer. So if we get the batteries up even close to 100% otherwise, during that time frame they should definitely get maxed out and be just fine.
Does my reasoning make sense? Any big flaws in my logic?
If you are down 80 amp hours a 20 amp converter wont recharge in 4 hours. A 40 amp converter wont recharge it in 2 hours either. A 50 amp convert will work just fine and if you ever go to four gc2 it will still work pretty good.
