03-26-2020, 02:39 PM | #1 |
Gone Wild
Join Date: Jun 2018
Location: Kersey Pennsylvania
Posts: 437
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RV battery help
Can somebody tell me what voltage this battery is I got a new camper it came with three of them and they’re only reading 5.7 V
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03-26-2020, 03:30 PM | #2 |
Gone Wild
Join Date: Feb 2020
Location: Palm Springs, CA
Posts: 218
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Re: RV battery help
It's a 12V deep cycle marine battery. You can see Exide info here:https://assets.academy.com/mgen/20/10782820.pdf
We used to have a large 5th wheel RV. Our batteries powered a 120V AC inverter in addition to all of the 12V lights etc. Whenever we forgot to turn the inverter off it would discharge those batteries quickly. |
03-27-2020, 09:36 AM | #3 |
Gone Wild
Join Date: Jun 2018
Location: Kersey Pennsylvania
Posts: 437
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Re: RV battery help
Thank you I am thinking of going with one battery 12v inverter and solar panel to keep it charged
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03-27-2020, 10:48 AM | #4 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,005
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Re: RV battery help
Group 27 deep cycle. If you have the room consider the 29 or 31. Same widths but get longer.
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03-27-2020, 11:11 AM | #5 |
Bonafide Nincompoop
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
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Re: RV battery help
Like they said, that's a 27 size 12v. That's on the small end for a deep cycle battery. If you have room, jump up to 29 or 31 size.
Have talked to a lot of people about Marine/ RV batteries for troller motors, and a lot of boat guys say the Walmart brand Marine Deep cycle batteries are really good, and much cheaper than other brands, and have a two year warranty. That said, if you want the best quality/ lifespan, don't use a marine battery for an RV house battery. The main reason is most marine batteries are also meant for cranking purposes so the plate structure is made to deliver high amps for starting, but also have some ability to handle a long slow discharge. For most RV house batteries you don't need the ability to start an engine (generator starters don't usually draw that much power). Using a battery that is designed primarily for true deep cycling (long slow discharge rates) will get you longer battery run times, and longer service life. Trojan and Crown make some nice batteries specifically for RV use. True Deep cycle batteries for solar/wind power storage are usually the most expensive, but the higher end brands are sometimes able to last 15 years or longer. Fullriver and Surrette/Rolls for example. |
03-27-2020, 12:22 PM | #6 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,005
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Re: RV battery help
Agreed. If you go the 29 or 31 route make sure to get the deep cycle version not the starting or combo.
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04-07-2020, 07:30 PM | #7 |
Gone Wild
Join Date: Jun 2018
Location: Kersey Pennsylvania
Posts: 437
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Re: RV battery help
Ok so what can I do with the old batteries are they worth anything can I take them to auto zone or advanced auto.
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