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Old 06-13-2024, 07:51 PM   #1
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2019 23' International
Phoenix , Arizona
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Do we need new batteries?

2019 23CB international Serenity
Can someone help us determine if we need new batteries? Heres what our panel looks like. Weve been traveling all day and are boondocking.
Were on the road for the next 5 weeks and can buy new batteries if we need to. (Not lithium at this time)
Any help/suggestions?
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Old 06-13-2024, 08:33 PM   #2
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Probably yes.

But more info needed. How old are these batteries (original?) What type of batteries are they? How are you charging them? How long has it been showing a voltage reading below 12V ?
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Old 06-13-2024, 09:22 PM   #3
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More info added

Original batteries from 4/19. Marine and RV Delco Batteries.
We have solar panels. When were driving during the day, it shows 13 +\- V.
When we stop, it drops below 12v quickly.
This is the first time its happened.
Also, we live in Phoenix so the heat is hard on batteries.
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Old 06-13-2024, 09:53 PM   #4
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If the batteries are from 2019 then they are 5-6 years old (may have been made way before the Airstream). Replace them. Even if they can be made to take a charge, they gave you a long life for traditional batteries and I wouldn't trust them to perform well anymore.

It sounds like your charging system is getting the voltage up (can't tell from your post if it's the solar and/or the tow vehicle doing the charging, but no matter) but that the batteries are not taking the charge.

You could pull them and have them tested at a battery shop, but I wouldn't bother. If you're not ready for lithium yet just replace them with the best version of the same you can find/afford and carry on having a great time camping.
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Old 06-14-2024, 03:30 PM   #5
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Go to an auto parts store and they will test your batteries. Dropping below 12volt is usually a sign that you need batteries. Check out lion or Renogy lithium. Reasonable prices. Last batteries you will buy.
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Old 06-14-2024, 08:01 PM   #6
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Caution: Your electrical components need to be lithium compatible.
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Old 06-14-2024, 09:27 PM   #7
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Quote:
Originally Posted by Daquenzer View Post
Caution: Your electrical components need to be lithium compatible.
Agreed. I wouldn’t switch to lithium on the road, it can be involved and turn into quite the rabbit hole. I’d get AGM batteries for now. What you are describing sounds like the batteries have reached the end of life. I’d do it sooner than later because at some point your jack won’t work and fridge won’t start. THAT would turn into an emergency,
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