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Old 07-05-2019, 08:25 PM   #1
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Question 2020 Verona 36VSB Lithium Battery Install

Has anyone swapped out their AGM batteries for Lithium's? I am looking at Battleborn drop in LI group 27 that should fit right in the tray. Looks like I need to reprogram the Magnum charger and possibly upgrade the controller to ME -RC50 to get the charging programed correctly. Also a new LI compatible battery isolator so that the alternator will charge them while the engine is running.

Thanks JC
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Old 07-05-2019, 08:30 PM   #2
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Call Battleborn, they will help you set up your charging profile, and recommend a isolator. Great people.
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Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
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Old 07-07-2019, 06:09 AM   #3
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I am following this with a high level of interest. Our 2020 36 VSB came with the standard 3 AGM house batteries that are totally inadequate for an all electric coach. We are one week into a 6 week trip and found this out on our first night without being plugged in.
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Old 07-08-2019, 06:24 PM   #4
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Originally Posted by landtrawler View Post
I am following this with a high level of interest. Our 2020 36 VSB came with the standard 3 AGM house batteries that are totally inadequate for an all electric coach. We are one week into a 6 week trip and found this out on our first night without being plugged in.
I thought the lithuim had to be kept above freezing?
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Old 07-08-2019, 09:41 PM   #5
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I thought the lithuim had to be kept above freezing?
https://battlebornbatteries.com/are-...po4-batteries/
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Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
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Old 07-15-2019, 09:47 AM   #6
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Quote:
Originally Posted by J W Cook View Post
Has anyone swapped out their AGM batteries for Lithium's? I am looking at Battleborn drop in LI group 27 that should fit right in the tray. Looks like I need to reprogram the Magnum charger and possibly upgrade the controller to ME -RC50 to get the charging programed correctly. Also a new LI compatible battery isolator so that the alternator will charge them while the engine is running.

Thanks JC
I am also ver interested in this thread. All feedback will be appreciated as we try to upgrade the 2019 Verona LE systems.
Thanks.
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Old 07-28-2019, 06:45 AM   #7
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Update on Lithium Install

Here is a quick update on my research into this install. I have talked with Woody at Renegade, as well as AM Solar and the folks at Battleborn. I have narrowed down the solution to the following:
- Replace the 3 AGM batteries with Battleborn lithium to give full 300 amps of useable power. there is room to put a 4th battery that may be added later, since a 4th can be added at anytime unlike with AGM batteries there is no issue with balancing the charge.
- The Magnum charger will need to be reprogrammed specifically to the charging needs of the lithium that differs from the AGMs.
- The battery isolator needs to be replaced to a unit that is specific to the lithium, this will change the charging profile when they are being charged by the alternator. Still need to call Precision Circuits Inc to see if the unit that is currently in the rig can be easily replaced with their LI unit. I am hoping this will be as easy as reconnecting the wires to the new unit.
- I had concerns about how the Firefly/Vegatouch Lyra control panel would be impacted by the above. I am going to call them to make sure their interface will not interfere with the changes above.
- Lastly, I started to research the solar option. Seems that the pre-wire that is 10 gauge will limit to 30 amps from the roof. Larger solar capacity will require running heavier gauge wire, which will be a mess. So probably limited to 400 watts of solar configured with 4 - 100 watts panels, 2 wired parallel and 2 wired in series.
I hope to complete my research in the next two weeks and will update at that time.
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Old 08-30-2019, 08:35 PM   #8
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Hold on Lithium Install

So, I have evaluated the cost and my time to install a new lithium battery system. If I were to do extensive boon docking, I would go with the Battleborn solution as described earlier. The cost of 3 lithium batteries, new battery isolator and rewire will with 4/0 wire will probably run close to $4k. I have 2020 Verona 36VSB, the bay next to the existing batteries houses the Aquahot. I would put the lithiums in that bay, looks like I could get 6 in there is I wanted to. Advantage is that the Aquahot will help keep the bay above freezing. Lithiums will discharge if frozen but will not charge up. Typical scenario for me would be to head out of Wisconsin in winter, so I would like to charge them if needed by alternator, generator, or shore power. My bigger challenge is in summer camping without shore power. I have tested the capacity of the 3 AGMs to power the fridge (no other power drain other than parasitic draw from the various systems that need to run in the background) in an overnight situation and I was pleased that I had plenty of power to do so. However, the big issue is getting them fully charged each day so they last the next night and the next and the next... I have come to the conclusion that a massive solar panel array on the roof would be required if you did not want to run your generator. Since your generator charges at 100 amps, that would be 10 - 100 watt panels going full sun. I will elect to charge my batteries with the generator during the day or alternator if moving to the next sight. I am going cheap, adding a 4th AGM to the existing bay, it will cost me about $250 with 4/0 wiring if I do the work myself. I will see if this is enough to get me by (yes, I am tight with a $). I am concerned that the AGMs will not take the full charge as fast as the lithiums, so adding the lithiums will be the next step if needed. It does not matter how many batteries you have if you cannot get them fully charged. Good luck to all of you fellow all-electric coach owners.

What I believe the big catch is
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Old 08-31-2019, 04:05 PM   #9
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Have you considered the Lifeline L16 AGM 6 volt, 400 AH batteries?

They have a 7"x11" footprint, are 16" tall, weigh 120 lbs each and can be used in any orientation except up-side down. I laid 4 down on the 11" side and 2x2 arrangement for an 800 AH battery bank that accepts all the available recharging current. I have seen up to 160 amps going into the batteries, 125 from the Magnum MS2812 charger and 34 from the Outback solar controller connected to 765 watts of solar panels. Also, they can handle the temperatures that cause the LI batteries to fail.
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Old 09-02-2019, 08:11 PM   #10
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6V Option

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Originally Posted by joes2901 View Post
Have you considered the Lifeline L16 AGM 6 volt, 400 AH batteries?

They have a 7"x11" footprint, are 16" tall, weigh 120 lbs each and can be used in any orientation except up-side down. I laid 4 down on the 11" side and 2x2 arrangement for an 800 AH battery bank that accepts all the available recharging current. I have seen up to 160 amps going into the batteries, 125 from the Magnum MS2812 charger and 34 from the Outback solar controller connected to 765 watts of solar panels. Also, they can handle the temperatures that cause the LI batteries to fail.
Yes, that is a great point. I had 4 of the 6V batteries in my last coach, it was a very cost effective way to bump up the the AH and they have better charging profile than the group 27's. Since I already had 3 group 27s in the RV, I thought adding a 4th would be the cheapest solution. Your suggestion would be a great second option if we run have battery issues. I could easily put in up to 8 of these in the two bays and still be less expensive than going lithium.
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Old 09-04-2019, 01:45 PM   #11
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Quote:
Originally Posted by J W Cook View Post
Yes, that is a great point. I had 4 of the 6V batteries in my last coach, it was a very cost effective way to bump up the the AH and they have better charging profile than the group 27's. Since I already had 3 group 27s in the RV, I thought adding a 4th would be the cheapest solution. Your suggestion would be a great second option if we run have battery issues. I could easily put in up to 8 of these in the two bays and still be less expensive than going lithium.
I installed 6 of the smaller Lifeline 6 volters in my all electric 18 Explorer, which is similar to your Verona. 660 amp hours now and will run all night with power to spare.

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