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F450

Carmel Valley, CA

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Posted: 10/14/13 05:32pm Link  |  Quote  |  Print  |  Notify Moderator

Has anyone ever heard about using lithium batteries in a RV?

Fishinghat

Western Washington, USA

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Posted: 10/14/13 05:52pm Link  |  Quote  |  Print  |  Notify Moderator

No.

The first problem that comes to mind is cost vs available amperage. While lithium batteries are efficient and light, to get the storage capacity we need, the old fashioned lead/acid batteries work just fine and are a whole lot cheaper.


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C Duck

Visalia, CA

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Posted: 10/14/13 06:14pm Link  |  Quote  |  Print  |  Notify Moderator

Check out aboutrving.com, Ron installed those batts. in his
Dynasty about 1-2years ago and has some write ups on his experiences.


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harold1946

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Posted: 10/14/13 06:19pm Link  |  Quote  |  Print  |  Notify Moderator

The couple camped next to us now have two lithium 12 volt 300 AH deep cycles. Price tag for the two was $6,998.


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camperdave

northern, California

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Posted: 10/14/13 06:38pm Link  |  Quote  |  Print  |  Notify Moderator

I've been thinking about it! I have 8 130ah 3.2v cells (that makes 260ah @ 12v) that I've pulled out of my electric car. These cells no longer support the current I need in the car (500a or so), but are more than adequate for the 5-10a that I need in my trailer. It's sort of a longer term project for me since I have more important things at the moment, but I will be installing them eventually.

These cells cost me over $1000 when I bought them, so obviously it would not be cost effective in this application. But since I already have them now... why not experiment?

btw, they weigh 9.7 pounds each, so 260ah @ 12v would weigh under 80 pounds. And that's about 200 usable ah's, none of this 50% discharge limit stuff. The equivalent of 200 usable ah's in lead would be more like 240 pounds (four T-105's).

(edited cause I had some of my numbers wrong from memory)

* This post was edited 10/14/13 09:58pm by camperdave *


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Dakzuki

Carnation, Wa, USA

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Posted: 10/14/13 07:38pm Link  |  Quote  |  Print  |  Notify Moderator

Yes, and if you add up the lifetime costs Lithiums are beginning to get in the ball park of being cost effective if you dry camp a lot. They can be charged very fast and can be drawn down a whole bunch. There are companies making them so they only draw down to a safe level but leave enough left to start an engine.

That and they don't weigh squat. My 2 AGMs weight 65 lbs each.

There is one person I know of with lithiums in a View/Navion.


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mlts22

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Posted: 10/14/13 07:55pm Link  |  Quote  |  Print  |  Notify Moderator

Roadtrek has them as an option for a few of their models. They are not cheap, and they require a special charge controller designed for them for best results.

SCVJeff

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Posted: 10/14/13 08:58pm Link  |  Quote  |  Print  |  Notify Moderator

I saw a podcast with a guy that has them and is the beta test for the manufacturer. Very interesting idea, but there are lots of fail-safes that need to be installed because their discharge curve falls off so quickly that by the time you notice it, the batter is stone dead. But it's amazingly small for the capacity. Price hadnt been worked out at the time of the interview.


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Dtaylor

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Posted: 10/14/13 09:09pm Link  |  Quote  |  Print  |  Notify Moderator

Professional anglers have been using them in bass boats for trolling motors for several years. They are light weight, recharge fast and last considerably longer. Last price I saw was about $1200 each. Not sure of recent pricing


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SCVJeff

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Posted: 10/14/13 09:12pm Link  |  Quote  |  Print  |  Notify Moderator

Found it: American RV'er

Show #58. The GUI is very poor, but once you get to it and have Quicktime installed, it'll play

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