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Old 01-14-2019, 10:15 AM   #1
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2016 MBS 2400W Battery Replacement

Looking for recommendation for replacing my factory house batteries which are weak after 3 years. Have read the threads about specific gravity measurements, voltage measurements, and all the details. Just need a deep cycle AGM battery size and brand that fits the physical location for a decent price. Not much boon docking the last 3 years. Thanks...
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Old 01-14-2019, 10:38 AM   #2
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Sams club Duracell group 31 marine/rv Agm will fit. Mine are holding up well at 3 years and no checking fluids or spills
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Old 01-14-2019, 12:22 PM   #3
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why would you pay the inflated price for AGMs when you admit you don't 'boondock' much? FLA flooded lead acid batteries are the best value for the buck... Why do you think yours are 'weak'?
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Old 01-14-2019, 01:24 PM   #4
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Quote:
Originally Posted by formerFR View Post
why would you pay the inflated price for AGMs when you admit you don't 'boondock' much? FLA flooded lead acid batteries are the best value for the buck... Why do you think yours are 'weak'?

Because the AGM's are basically maintenance free, you can leave the coach plugged in all the time in storage and the Group 31 batteries are higher capacity than the 27's installed by the factory.


And the AGM's were not that much more than flooded batteries. I don't need to worry about cooking the flooded batteries, having them off-gas and set off the explosive gas alarm.
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Old 01-15-2019, 02:52 AM   #5
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Old 01-15-2019, 08:48 AM   #6
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Also, after five years the battery bay still looks brand new.
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Old 01-15-2019, 10:33 AM   #7
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AGM with a true Deep Cycle construction will be best.

The main reason (although AGM have many virtues) is you stock alternator is HUGE.

Your alt. can pump out about 200A+ which is far more of a charge that a discharged pair of Lead Acid (LA) battery should be exposed to.

The AGM ability to absorb heavy charging is a great virtue .

Worth the extra money!

AGM need to be monitored for longest life (like every type battery) , so you might wish to install a SOC (State Of Charge) meter.

Here is an example of a SOC,,voltage monitoring does not work.

Bogart Engineering TM-2030RV-F TriMetric Battery Monitor | altE

https://www.altestore.com/.../meters.../meters.../ammeters-voltmeters.../bogart-engineer...
Rating: 4 - ‎1 review
TriMetric 2030RV RV battery monitor and meter comes with an enclosure and ... Percent Full display (State of charge) of your batteries, so you can see if you ...
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