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Old 07-31-2016, 05:46 PM   #1
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Question How Long Will the Battery Last?

Hey there fellow campers,

Future A213HW owner here. If I am strictly relying on battery power, how long will the battery last. I know that really depends on how much I use the lights etc. but I was wondering:

1- If I am using the propane furnace, does the furnace need battery power for a blower fan?

2- If I back the TV close enough to the hitch, can I plug the trailer into the TV and keep the camper battery charged?

Please advise and happy camping.
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Old 07-31-2016, 05:53 PM   #2
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Furnace is a big 12v hog!

You'll not get enough amps out of your tv to replenish your battery.



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Old 07-31-2016, 05:54 PM   #3
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1. Yes, the furnace uses 12V for the fan and the controls. The furnace fan eats battery pretty quickly. The frig will make short work of the battery too so run it on propane when dry camping.

2. Yes, the truck alternator will charge the camper batteries, however, not efficiently. It will take way to long to charge the camper batteries by running your truck.
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Old 07-31-2016, 06:02 PM   #4
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Congrats on your new A-frame! I don't have one but have owned a pop up. Those new a-frames look really nice. I keep trying to get the DW to let me get one so we can get back to the wilderness where we can't take our current rig

You will need 2 batteries to get through the night with your heater. You can charge them with your TV but it will take awhile. You would be better off getting a small inverter generator or solar. Enjoy!!
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Old 07-31-2016, 06:04 PM   #5
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If you are only using battery power, you will not be using your furnace very long.... it takes more 'juice' to get the furnace going, than it does to run it. The third or forth time that it is used after shutting off.... it may not have the power to start up the furnace. your lights may work for hours and hours... but not your furnace.

Also, instead of plugging your unit into the truck plug to recharge your battery, use jumper cables and with your truck running, go from your truck battery to your camper battery. The alternator at the front will give you a faster and deeper charge.
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Old 07-31-2016, 06:06 PM   #6
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Quote:
Originally Posted by RSchleder View Post
.

2. Yes, the truck alternator will charge the camper batteries, however, not efficiently. It will take way to long to charge the camper batteries by running your truck.
If I see that the battery is being drained, by plugging the trailer into the TV, can I run the furnace off the TV system? If so, I would think the TV battery would recharge the next time I drive it.
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Old 07-31-2016, 06:08 PM   #7
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Quote:
Originally Posted by Brother Les View Post

Also, instead of plugging your unit into the truck plug to recharge your battery, use jumper cables and with your truck running, go from your truck battery to your camper battery. The alternator at the front will give you a faster and deeper charge.
Thank you Brother Les
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Old 07-31-2016, 06:13 PM   #8
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How Long Will the Battery Last?

Being that you stated that you are a future owner, you are in a good position to install a second battery. If you are planning to be camping without hookups most of the time, I recommend getting 2 6v batteries- they will give you the most power. If not then 2 12v batteries will do just fine.

The furnace is a power hog like others have said. But if you manage it and have a generator to recharge in the am you'll be fine.

In a pinch to recharge, hook up jumper cables to your tv and "quick charge" your batteries. Run tv at 1500rpm for about an hour would give a good charge.

Get one of these:
INNOVA 3721 Battery and Charging System Monitor https://www.amazon.com/dp/B000EVWDU0..._.wONxbT56AAWR

Keep track of your power usage.

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It is best for the batteries NOT to go below 50% charge.

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Old 07-31-2016, 06:17 PM   #9
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Quote:
Originally Posted by Brimare57 View Post
If I see that the battery is being drained, by plugging the trailer into the TV, can I run the furnace off the TV system? If so, I would think the TV battery would recharge the next time I drive it.

Yes, but do you want to kill the battery in the vehicle that needs to take you home?


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Old 07-31-2016, 06:37 PM   #10
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Quote:
Originally Posted by HONDAMAN174 View Post
Yes, but do you want to kill the battery in the vehicle that needs to take you home?


2014 Evo 2850 "Woodstock"
2011 Toyota Tundra "Clifford"

Most vehicles, at the truck plug, will not allow 12v to the camper battery unless the vehicle is running. Truck battery will not drain while running

Quote:
HONDAMAN174 says: In a pinch to recharge, hook up jumper cables to your tv and "quick charge" your batteries. Run tv at 1500rpm for about an hour would give a good charge.
An hour is way to long to charge from battery to battery with a running truck, 15-20 minutes will be fine.
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