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Old 06-13-2016, 08:22 PM   #1
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Using a deep cycle battery inside the trailer

In the past I've used a deep cycle battery inside connected with an inverter to power the tv when dry camping when I want to power down the generator.

Any dangers in doing this?


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Old 06-13-2016, 08:42 PM   #2
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Poisonous gasses.

Yep. It's dangerous inside.
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Old 06-14-2016, 08:58 AM   #3
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charging the battery can generate hydrogen, so if you only use it inside and recharge it outside it's should not be a problem.
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Old 06-14-2016, 10:01 AM   #4
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Use an AGM type battery. These do not off gas the way flooded batteries do, and would be somewhat safer. My SUV has the battery in the passenger compartment, (under the centre row seats) and uses an AGM battery for added safety.
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Old 06-14-2016, 12:36 PM   #5
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Any flooded cell battery belongs OUTside! Same rules one applies to propane tanks. Various toxic/flammable gasses and the potential of an acid spill?


No thanks! All liquid-filled batteries stay securely strapped to the tongue.


And I am still a bit suspicious of the fire hazard of Li-ion batteries too.
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Old 06-14-2016, 12:46 PM   #6
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I do have an AGM battery actually. Until I can figure out the cord routing to keep the battery outside I'll just be sensible about it. The only thing it's being used for is to give power to the TV. The dvd/radio is powered from the onboard battery so really not much draw on it. I will simply place it outside during the day when charging off the generator.


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Old 06-14-2016, 12:58 PM   #7
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Quote:
Originally Posted by StarGazer View Post
I do have an AGM battery actually. Until I can figure out the cord routing to keep the battery outside I'll just be sensible about it. The only thing it's being used for is to give power to the TV. The dvd/radio is powered from the onboard battery so really not much draw on it. I will simply place it outside during the day when charging off the generator.
An AGM battery will give you no grief about noxious gasses or spills. It is a sealed unit. It will also give you horrible service life when used in a deep-cycle role.

At the campground this weekend, I noticed at least one camper had used jumper cables to parallel-up two batteries (one on the tongue, the other on the ground) to give greater run time.

That idea won't work for an inverter located at the other end of the RV since the line losses for the 12V wiring at that length, will leave you with 9V when you turn the TV on.
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Old 06-14-2016, 01:04 PM   #8
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Well I got this one off amazon and reviews are stellar so in giving it a whirl this weekend. Will only be powering the tv for about 3 hours per night so I'm sure for this use I'll be fine.

Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery



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Old 06-14-2016, 01:43 PM   #9
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I will be relocating batteries to insider the trailer once I pick up the trailer. There are deep cycle AGMs, but they are expensive. Therefore I decided to go with lithium batteries (300 or 400 AH bank).
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Old 06-14-2016, 05:07 PM   #10
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Personally, I'd have no problems using a lead/acid battery inside the TT to power a device. To the best of my knowledge, a battery only outgasses hydrogen and oxygen when charging with bulk stage voltage. Charge it outside, use it inside- not a problem IMHO.
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