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Old 04-07-2017, 02:44 PM   #1
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1000 watt generater

Just wondering if a 1000 watt generater will help keep a charge on the battery if run a couple hrs a day.
Thanks for any input
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Old 04-07-2017, 02:55 PM   #2
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Hi Brian, kind of an open question,,, lots depend on how long you operate the generator , the charge level of the batteries and if there is a constant load on the batteries . I'd rather run a 1k generator than a 5k generator if it's only needed to charge the batteries. Using ball park numbers ,charging a battery at a 30 amp rate would be less than 400 watts.

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Old 04-07-2017, 03:06 PM   #3
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If a small to medium battery bank, with moderate usage, yes. More usage equal more charging hours needed of course.
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Old 04-07-2017, 03:07 PM   #4
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Well going dry camping 3 days I'm just looking to keep battery charged and I know the fridge will kick over to electric when hooked up. There is nothing else i would be looking to run we have a really nice set up with battery operated LED lights at night. I have a 5500 watt but I can't justify running that at a campground.
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Old 04-07-2017, 03:11 PM   #5
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Yes, a 1000w generator is plenty to run your converter to charge your batteries. Another solution, and likely quicker way to charge your batteries is to use a good automatic car battery charger, 15-40 amp capacity. Just hook to your batteries and charge away. Depending on your converter, they can be slow to charge. https://www.amazon.com/gp/product/B0..._rd_i=15707061
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Old 04-08-2017, 05:53 AM   #6
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Assuming you are in the boonies, yes, it will charge the batteries and maybe turn a light or two on but may not charge the batteries and run some lights (unless LED) and the fridge too at 3-400 watts for a Dometic.
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Old 04-08-2017, 06:17 AM   #7
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You may be able to keep the refer on gas. Check your manual.
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Old 04-08-2017, 06:28 AM   #8
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The worst thing you can do any electrical appliance is to run it on low power. For that reason alone I wouldn't use anything less than a 2000W. generator so you have some reserve capacity.
To help prevent damage I would run the refrigerator on gas and not allow it to switch to electric.
The cost increase to upgrade to a 2000W. would be very little and the fuel consumption would be insignificant.
Before you buy anything check the actual running output wattage not just the surge rating. While a generator may be rated as a 1000W. unit it may actually only deliver 800W. continuous run. Overloading any generator will shorten it's useful life.
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Old 04-08-2017, 07:09 AM   #9
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Over the years i have frequented several Nascar events,which is basically parking camper in a field.

When we had a class A I would take a 2000w honda inverter generator with us.I have gone as long as six days and never used the on board generator in coach.The smaller one would meet all our needs UNLESS we needed to run the AC.

My battery bank consisted of one (1) group 31 marine battery for coach and of course the chassis battery.
follow Letmgrows advice and spend the money and purchase a good Quality 2000w generator.
I understand they can be pricey,but I hate to see anymore spend money on something and realize it wont match there needs.
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Old 04-08-2017, 10:05 AM   #10
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If you have a 1000 watt gen already, and do not want to purchase a 2000 watt, and you want to insure you charge your batteries in a short amount of time.....

Plug a battery charger into the genny and charge your batteries that way. You put no load on the genny except the charger and you will charge the batteries much faster than using the onboard charger.
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Old 04-08-2017, 04:59 PM   #11
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Charge your batteries with the 1000 watt gen then get a 2000 watt inverter for the 120 volt load. Just kidding.
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Old 04-09-2017, 08:14 AM   #12
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Just curious what size solar panel would work?
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Old 04-09-2017, 10:11 AM   #13
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Quote:
Originally Posted by Briansi52 View Post
Just curious what size solar panel would work?
Most solar RV panels are in the 100 watt range, so to equal the small 1000 watt generator you would need 10 100 watt panels. And that's only if they are in direct sun - any shade and the effectiveness drops off fast. The advantage is that you set the solar panel out and you can mostly ignore it and it does it's thing. But a single panel is really just good for maintaining a mostly charged up battery, or keeping up with very minimal usage.
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Old 04-09-2017, 10:18 AM   #14
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A 100w solar panel, in full sun, puts out about 5a, so it should be thought of as a small trickle charger. You get about 5 hrs of usable sun on average, so one 100w panel will make about 25 amp hrs per day. That's not much power in the big scheme of things. Leave your furnace on all night and you'll wake up with a dead battery. The more batteries you have, the longer you can go without recharging your batteries. The rule of thumb for solar is one 100w panel for each battery in your system.
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