10 inch vs 12 Inch 12 volt Led acid Battery, What's the Difference?

[Chief2hairs]

Thanks for explaining. I don't believe the panel indicator lights either.

 

[Flyer32RLS]

"A Team,"

When I bought my RV in July 2024 I was provided two 10 inch 12v batteries by the dealer. Now it's 2026 and getting close to replacement time.
The Battery box in my Paradigm will hold two 12v 12 inch batteries. Will I see a noticeable difference in run time on a 12 inch Battery vs a 10 inch battery?
There is a price difference between the two so I want to weigh that vs the battery run time.
I have seen a 12 inch is 100AH and a 10 inch is like 68 AH's per the internet?
Been noticing the two 10 Inch batteries struggle to put out levels , all three slides and keeping the 12v fridge from giving me an E and low volt message when docking after a days drive? That said 99% of the time I hook up shore power before performing all those steps to save the battery. That said in a pinch I want the batteries to perform as intended without going low on me if I can help it.

What says the Forum?

Thanks

MR

Thanks. I have done it already. Now I "need" a DC to DC charger from the truck. I am moving to a Ram as soon as the redesign hits and I am just not sure I want to put the effort or expense into it. I may not need one if the new Ram addresses this as an "improvement"

There is no need for an DC-DC charger from the truck. Look for a video addressing this issue. There is one from the National Training RV Academy that will debunk the requirement that everyone says you need.

UPDATE: Just watched this video and I will take what he says over all the experts on this site. Watch and be informed!