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Open Roads Forum  >  Technology Corner

 > Are the $25K lithium battery systems worth their cost?

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gemsworld

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Posted: 04/29/20 05:10pm Link  |  Quote  |  Print  |  Notify Moderator

I noticed several Class B manufacturers are offering as an upgrade lithium battery systems such as Volta and other brands costing in the neighborhood of $25K or more. Based on what I have learned, the coach manufacturers get rid of the generator, add a second alternator to the coach engine, add some solar panels, 2,000 or 3,000 watt inverter and of course the lithium battery pack. If I'm not mistaken, in order to run the AC using the batteries, a 10K or 11K BTU unit is used. Ostensibly, you should be able to run the AC for a few hours before the battery pack is discharged.

Taking the high cost under consideration, do any of you see the advantage of ditching the generator and switching to this type of system? From what I gather, if you're stationary and the batteries need to be charged you must run your coach engine 2 to 3 hours to charge the batteries. Personally, I don't see any advantage by doing this. For years, I have managed to dry camp for days using 2 lead-acid batteries, 200 watts or less of solar panels and running the generator about an hour or less every day in the evening.

* This post was edited 04/29/20 07:20pm by gemsworld *





Ductape

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Posted: 04/29/20 05:54pm Link  |  Quote  |  Print  |  Notify Moderator

Early adopter technology is never good value, but there’s always a segment of the market that will pay the price. Class B in general are poor value IMO compared to other choices, but they fit the need for some people obviously.

I could see a case for someone who’s basically transient, and needs cooling when parked.


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time2roll

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Posted: 04/29/20 06:09pm Link  |  Quote  |  Print  |  Notify Moderator

I often read maintenance on the generator wedged in with virtually no access can be problematic or expensive on these units. Much easier to carry a small Honda if you need air 24/7. Or skip the Honda too if no air is needed. Value and cost is up to the user. Does it 'pay' for itself financially.... probably not but same for most RVing.


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2oldman

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Posted: 04/29/20 06:11pm Link  |  Quote  |  Print  |  Notify Moderator

If you can afford it it's worth it. I imagine a $25k battery would be pretty awesome.

You could run heavy-draw stuff like toaster, MW, coffee maker, hours of TV and not have to recharge for days. But, there's no free lunch and the recharging could take quite some time unless you have constant solar or get plugged in.

* This post was edited 04/29/20 06:20pm by 2oldman *

Lwiddis

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Posted: 04/29/20 06:11pm Link  |  Quote  |  Print  |  Notify Moderator

You are mistaken if you opt for this 25k system. If you had adequate solar panel watts you wouldn’t need to run the generator at all when no A/C is needed.


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theoldwizard1

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Posted: 04/29/20 06:34pm Link  |  Quote  |  Print  |  Notify Moderator

$25K uplift is ridiculous ! Four Battle Born lithium batteries will give you 400 Ah and cost about $4,000. A good 3000W inverter/charger/transfer switch is about $1,500. Not sure how much solar is, but we haven't deducted any thing for the missing generator.

Air conditioning requirement is the "make it or break it" in the decision game. Personally, I would rather have more solar panels than a second engine alternator, but roof space is limited. I would still carry a small generator (iGen 2500).

Now that 12VDC compressor refrigerators exist, where are the 12VDC air conditioners ?

2oldman

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Posted: 04/29/20 06:42pm Link  |  Quote  |  Print  |  Notify Moderator

theoldwizard1 wrote:

where are the 12VDC air conditioners ?
You mean the ones that pull 115 amps?

noteven

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Posted: 04/29/20 08:31pm Link  |  Quote  |  Print  |  Notify Moderator

My 6.2 gasohol V8 makes a lot less annoying noise idling vs my “quiet” 3500rpm Honda

The Torqshift trans has a pto provision.

Wonder how many watt a/c alternator (generator) I could drive with the truck engine & a pto?

time2roll

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Posted: 04/29/20 08:56pm Link  |  Quote  |  Print  |  Notify Moderator

PTO generator would be 8 to 15+ kW.

T18skyguy

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Posted: 04/29/20 10:49pm Link  |  Quote  |  Print  |  Notify Moderator

No early adoption for me. Too expensive and impractical. I love my genny, plus it could power my house in an emergency.


Retired Anesthetist. LTP. Pilot with mechanic/inspection ratings. Between rigs right now.. Wife and daughter. Four cats which we must obey.

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