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Old 05-24-2012, 07:07 PM   #1
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Battery life

We are camping for the 2nd time in our new tt!!!! This outing will have no electricity, only battery power. We have power awning, power jacks & hitch & water pump. In addition lights will be used & radio. We will be camping for 2 nights. Does anyone know how long a regular battery will last. When using our tent trailer we had battery power for at least 2 weeks, however that was only using lights.
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Old 05-24-2012, 07:57 PM   #2
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Its a really tough question to answer in that so much will depend on you and how much power you need to remain comfortable. The on board heater will really suck up power, all the appliances will take up a little each and if you leave lights on....I could go on and on. We just came back from dry camping for 4 days and lost most of our power by day 3. Even though we were being very careful.
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Old 05-24-2012, 08:34 PM   #3
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My new battery was 100% charged from last weekend. got home and had to put the slide out once to get under the sink to do some reinforcement for my RVQ support. Pulled the slide back in at teh end of the night and did a battery check.
3/4 power remaining. 2 days may eat up the stand alone charge. Get a small solar charger to keep it charging in the sunny hours and use the slide in out sequence with the truck hooked and powering is my suggestion.
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Old 05-24-2012, 08:48 PM   #4
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Quote:
Originally Posted by hockey11 View Post
We are camping for the 2nd time in our new tt!!!! This outing will have no electricity, only battery power. We have power awning, power jacks & hitch & water pump. In addition lights will be used & radio. We will be camping for 2 nights. Does anyone know how long a regular battery will last. When using our tent trailer we had battery power for at least 2 weeks, however that was only using lights.
Without a generator or hooking it up to the truck and running the truck for a few hours, if you use the heater at all it might not last the night.

The OEM battery might have only 65 or 70 AH of capacity when fully charged. The furnace draws 11 amps when running so if it runs constant it will kill a fully charged battery in (75AH divided by 11A =) 6.8 hours to dead if you use nothing but the furnace. Running it less often will give you longer life.

Lights add 1 amp per bulb to that number. Most fixtures have 2 bulbs.

I always charge up the batteries before I go to bed (or quiet hours end).
I HATE waking up in the middle of the night freezing my toes off.
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Old 05-24-2012, 08:51 PM   #5
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Quote:
Originally Posted by MilCop4523 View Post
My new battery was 100% charged from last weekend. got home and had to put the slide out once to get under the sink to do some reinforcement for my RVQ support. Pulled the slide back in at teh end of the night and did a battery check.
3/4 power remaining. 2 days may eat up the stand alone charge. Get a small solar charger to keep it charging in the sunny hours and use the slide in out sequence with the truck hooked and powering is my suggestion.
The "3/4 power" was not using the indicator lights was it?
That light stays on till 50% remaining.
The "Fair" light stays on till the battery is deader than Elvis.
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Old 05-24-2012, 09:22 PM   #6
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We are hoping we will not need heat!!!! Our main concern is no power to hookup the camper when we leave on Mon. We have no generator, however if we are able to plug into the vehicle to get it power the tongue jack we should be ok.?!
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Old 05-24-2012, 10:01 PM   #7
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Once you hook up to the TV you will have power from it. If you see that you need to run something that draws alot of power then just hook up to the TV and let it run a little bit to help out. Also someone suggested a solar charger to help during the day and it does help
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Old 05-24-2012, 10:51 PM   #8
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This also may help you:
normal appliance amp draws
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Old 05-28-2012, 10:39 PM   #9
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Thanks for the help. We just returned from our weekend w/o electricty & had no problems!!! The worry was for nothing. No heat was needed. We ran the radio, water pump, some lights(min) and had plenty to put awning, slide, jacks & power tongue to use when getting ready to leave!!! Fun was had by all!!!
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Old 05-30-2012, 08:35 PM   #10
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Some tips we've used boondocking for years:

Permanately mount two batteries wired in parallel. Charges with charging system.
Use LED's for all commonly used lights. 1/3 the power draw
Pull one bulb from double bulb fixtures which aren't LED's
Use a 3rd or 4th battery for 4 or 5 days or more, wire in parallel. Charge separately.
One or two lights on at a time, no more
Expand slides, awning, etc with Tow Vehicle running and power still hooked up.
Use accumulator tank. Minimizes power surge with pump starts

Two batteries will get us 3 or 4 nights and 4 batteries 5 or 6 nights, with some to spare. We use satellite radio often and a DVD every night and usually have a game night at least once with lights. Additional batteries are much cheaper than Honda's. I was told to match batteries to be hooked together. Don't know for sure but why not.
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