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05-23-2012, 04:35 PM
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#1
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Moderator Emeritus
Oklahoma Boomers Club
Join Date: Apr 2002
Location: Sand Springs, Oklahoma
Posts: 2,902
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Using Honda 2000 to charge batteries on a 50amp system
OK, suppose you have a 5th wheel with a 50 amp system and want to charge the batteries. Can you use an adapter from 50 to 30 and then plug that into the Honda 2000 with the 30 amp plug to use just for charging, maybe while plugged in run some lights or tv or such other low current items? My thinking is this would allow the large inverter/charger to get the batteries up in good shape in a short time rather than just using the charger output of the Honda which is only a few amps. This is considering that the overall draw on the Honda is under the max rating of the generator. What say you, has anyone done this and how has it worked?
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Tom
KE5NCP
2016 Winnebago Sunstar LX 36Y, 2018 Wrangler unlimited Rubicon
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05-23-2012, 05:03 PM
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#2
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Senior Member
Monaco Owners Club
Join Date: Jul 2011
Posts: 231
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Should be fine. I would just make sure that your AC is not turned on before firing up the generator.
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Troy Rice 2011 Newmar Mountain Aire 4344
2013 GMC Denali 3/4 ton Diesel Toad
Great Wife, two beautiful kids, and two funny pups
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05-23-2012, 05:35 PM
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#3
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Senior Member
Excel Owners Club Mid Atlantic Campers Coastal Campers
Join Date: Nov 2011
Location: Beaufort, SC
Posts: 540
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Quote:
Originally Posted by troyrice76
Should be fine. I would just make sure that your AC is not turned on before firing up the generator.
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X2 on that.
I'd also not use the microwave.
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2015 Excel Winslow 37SDF 38' fifth wheel
2007 Excel Limited 33RKE 35' fifth wheel
2015 Ford F350 Platinum DRW Crew Cab 6.7PSD
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05-23-2012, 05:45 PM
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#4
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Senior Member
Join Date: Jul 2011
Posts: 2,303
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Yes, the DC charging outlet on the Honda will be next to useless for a large battery or battery bank (if you want to achieve full charge within this century.) A 50-ish amp charger will draw 10 amps or more of AC at full output so it may use up just about all the eu2000's got, but there should be a few amps left over for other light loads. Given the high-quality power output of the inverter-based generators like the eu2000 your RV charger/converter should work great.
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05-23-2012, 05:56 PM
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#5
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Senior Member
Join Date: Aug 2009
Posts: 1,696
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I've installed a modern power converter in our older '88 Winnie, since we boondock a lot - and wanted the 40 amp battery charging capability of the new converter - works great with our Honda 2000i - charges batteries LOTS faster than the OEM converter 10 amp charge rate that came with the rig, and power to spare for other light demand coach needs while charging...
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John Day....|'88 Winnebago Super Chief 27ft. Class A Eastern .....|'88 KIT model 240 24 ft. 5er Oregon ......|'02 Dodge/Cummins 2500 Quad Cab
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05-23-2012, 06:05 PM
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#6
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Senior Member
Join Date: Feb 2012
Posts: 143
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No problem do it all the time uses less gas than the onan 4 k
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05-24-2012, 02:47 AM
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#7
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Senior Member
Join Date: Mar 2012
Posts: 255
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parallel
Hi
I have a pair of 2000i’s and the paralleling unit. They have no problem running the charger, 1 AC and lights. I operate the refrigerator and hot water heater on gas.
I haven’t used them since installing the LED lights.
3665RE
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53 years towing experience. Largest load ever hauled on a public highway was 300,000lbs 30ft wide 70ft long and 22ft high max speed 15mph.
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05-24-2012, 03:26 AM
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#8
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Senior Member
Monaco Owners Club Appalachian Campers
Join Date: Dec 2011
Location: Asheville
Posts: 166
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How/where do you store the fuel while traveling?
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John & Robin
2000 /Holiday Rambler / Imperial
Cummins 350
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05-24-2012, 06:13 AM
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#9
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Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,948
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Tom, you will get a faster battery charge if you run a 120 VAC battery charger on the Honda and let it charge your battery.
For our trailer I have a pair of EU2000i in parallel. They easily run one A/C and a microwave if needed. If I don't need the A/C, we can run one and save fuel. I ahve a 6 gallon extended run tank for the units. We ahve pwoered field day from these (actually one) for a fe years. Never missed a lick.
Besure and drain the carb when you shut down, unless you will be running them about every 4 to 6 weeks.
Ken
__________________
Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
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05-24-2012, 10:35 AM
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#10
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Senior Member
Monaco Owners Club Appalachian Campers
Join Date: Dec 2011
Location: Asheville
Posts: 166
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Quote:
Originally Posted by CapnMorgan
How/where do you store the fuel while traveling?
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I guess I should add, "if you are in a motor home.". Seems like storing gas in the basement would be dangerous.
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John & Robin
2000 /Holiday Rambler / Imperial
Cummins 350
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05-24-2012, 12:30 PM
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#11
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Moderator Emeritus
Oklahoma Boomers Club
Join Date: Apr 2002
Location: Sand Springs, Oklahoma
Posts: 2,902
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Appreciate all the answers, now I just have to look up the current draw on the inverter/charger to make sure the Honda will handle it.
Ken, I think the 100 amp three stage charger will charge the bats (4 of them) better than a small car charger and I won't have to carry so much stuff around either. At least that is my thinking.
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Tom
KE5NCP
2016 Winnebago Sunstar LX 36Y, 2018 Wrangler unlimited Rubicon
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05-24-2012, 01:04 PM
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#12
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Senior Member
Join Date: Mar 2012
Posts: 255
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Fuel
Hi
When we travel I carry 10 gallons of Diesel, 5 gallons of recreational fuel (no alcohol) and 2 gallons of 100LL avgas in the bed of the truck.
We don’t dry camp often and most of the time we use the 2000i’s when we arrive at an event that has run out of RV spaces.
I use the 100LL avgas to clean the 2000i’s fuel system after use so they store well.
I carry the diesel only when traveling in areas that I may have problems getting Diesel like the desert in the western part of the US.
I always have both 2000i’s dry of fuel in the front compartment where the generator would be mounted.
3665RE
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53 years towing experience. Largest load ever hauled on a public highway was 300,000lbs 30ft wide 70ft long and 22ft high max speed 15mph.
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05-24-2012, 02:02 PM
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#13
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Junior Member
Monaco Owners Club
Join Date: May 2012
Posts: 25
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I too, run my 50a rig on a EU2000 Honda generator. It will run everything but the AC. If I fill the fuel tank up @ 10:00 pm (+-2gallons, I think), it will run until about 5am without a hiccup. I only have 1 battery (12v) on my 5er, and the Honda keeps it charged up in the single-digit desert nights we often camp in. I do run the 2 fridges on LPG, though, as running them on electric power makes the Honda spool up pretty high.
Kevin
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05-24-2012, 04:28 PM
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#14
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Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,948
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Tom, I was assuming you had the old style charger.
Ken
__________________
Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
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