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Old 12-04-2022, 05:28 PM   #1
Maxine-A
 
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2019 25' International
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Tongue weight considerations when adding LiFePO4 and Panels to 25RB

Considering installing Solar to my 2019 AS International 25RBQ and wondering the changes to my tongue weight due to removing the heavy lead acid batteries in the box, adding 3 BB 100Ahs inside along with a Victron MultiPlus -2 12/3000/2x 120V Inverter/Charger, Smart Solar MPPT, BMV 712, DC/DC Charger, and associated required equipment to be located under the front bench seating area where my current electronics are located, and also 2 Zamp Obsidian 100W roof mounted panels to augment my Zamp portables. My current Inverter/Charger does not support Lithium and will have have to be removed and swapped out with the MultiPlus. If there are owners or technicians with input regarding this conversation I would be grateful for a response. Thank You,...J
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Old 12-04-2022, 05:53 PM   #2
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Sounds like my exact setup with the exception of adding (4) 90 watt obsidian panels. Your tongue weight isn’t going to change much. Your 3 Battleborn’s are 93 lbs, 7lbs less that your 2 lead acid, though moving them 5’ reduces the weight even more. My guess is, your witch weight will remain within 20lbs.
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Old 12-04-2022, 07:43 PM   #3
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I would consider weighing.

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Old 12-05-2022, 12:29 AM   #4
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The batteries will be about a wash in weight, although as mentioned moving them a little rearward will help lessen tongue weight a tad bit.

But the other equipment looks like it's going to be adding weight. The Multiplus will certainly be heavier than the unit it's replacing, you're adding a DC-to-DC charger, and the heavier gauge wiring is all going to add weight. Don't under estimate the weight of all the new copper.

Not saying that the project isn't doable, just that you need to do your math ahead of time to avoid problems. If you don't have a tongue weight scale (like a Sherline) this would be the time to get one so you can verify your math and make changes before you bolt things down.
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Old 12-05-2022, 05:12 AM   #5
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My apologies, I agree with the others. I added a progressive dynamics 1,800 watt inverter, 11lbs…not 50lbs. I also installed my hardware close together to manage the amount of wire used, along with using a Sherline to check my hitch when completed.
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Old 12-05-2022, 11:40 AM   #6
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Quote:
Originally Posted by Maxine-A View Post
Considering installing Solar to my 2019 AS International 25RBQ and wondering the changes to my tongue weight due to removing the heavy lead acid batteries in the box, adding 3 BB 100Ahs inside along with a Victron MultiPlus -2 12/3000/2x 120V Inverter/Charger, Smart Solar MPPT, BMV 712, DC/DC Charger, and associated required equipment to be located under the front bench seating area where my current electronics are located, and also 2 Zamp Obsidian 100W roof mounted panels to augment my Zamp portables. My current Inverter/Charger does not support Lithium and will have have to be removed and swapped out with the MultiPlus. If there are owners or technicians with input regarding this conversation I would be grateful for a response. Thank You,...J
Looks to be a wash as far as weight is concerned if your locations for your solar panels are behind (aft) of your axles.
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