New House Batteries for 2020 Minnie Winnie 31K?

[searranch]

New to the Form. New Mini Winnie owner. I need to change out the House batteries. In my Other MH I have used Walmart or Interstate standard wet batteries but don’t have an Inverter in my old 1 and not sure if these models have them so you need a more powerful unit. Thanks in Advance

 

[Eagle5]

Is your Motorhome a Minnie Winnie? What year and model is it? In my 2019, I still have my original NAPA Lead/Acid batteries, and they continue to work well.
In 2019, the power center provides excellent Battery Maintenance charging. I do not know what year this modification was made. Let us find out what year you have, and we can go from there. When the time comes to replace my batteries, I plan to buy two new Group 24 NAPA batteries.
Eagle5

 

[klook]

What year is your camper? What are your goals?

 

[searranch]

I have a 2020 31 K. I camp off grid but also have a Generator.

 

[klook]

Batteries in that situation are just there for when the generator isn't running. Lights and control panels etc. They won't run an inverter. If you don't plan to upgrade and get into solar etc. just replace them with a good quality marine/rv deep cycle battery. You can get a little more capacity by increasing frame size but not much.

 

[klook]

If your rig has an inverter, they are usually small and only keep the fridge on and a few outlets. In case the power fails at a campground for instance. People leave them on thinking they have to. It is a pass thru design that passes the normal power thru when it is available. I advise people to turn them off in not in use because they forget and leave them on and they kill the batteries when not plugged in. But it will run your fridge on the road to the boondocking site.....

 

[searranch]

Thank you all for the Reply’s. I forgot. My Other Refrigerator runs on Propane. The new ones don’t do that. Not sure what year they changed. Mine loves the Propane. Thank you guys again

 

[Morich]

This is the "road map" of your 110AC wiring:

https://www.winnebago.com/Files/Files/Winnebago/Resources/Diagram/2020/000168092.pdf

Looking at sheet 7, I see there is an inverter installed. Drawing is a bit too big to copy and get it online in large enough to see, so you may want to go there for the big picture of what items are supported by the inverter and what is not.
Basic plan is that the third breaker from left is the sub breaker that feeds AC power to the invert if you are plugged in. Follow that line down to find the drawing part showing the inverter. Looking at the parts listing, I see it as being able to support 1000 watts, so not big enough to power air, microwave or frig if it was wired to them, but it is not and is only meant to feed some of the outlets and a few items for TV!
Interactive parts drawings here:

Parts Catalog

Idea is the transfer switch for inverter will let cord AC go through to power those outlets, etc. or if no cord power, turn on the inverter remote switch above the monitor panel and it can use battery power to "make" the AC to watch TV or small things as long as batteries hold up. That will have a 1000 watt limit and last as long as power from batteries but not expected to be long term!
Yes, it is good to not turn the remote swtich on until you really need the inverter to make the AC. When it is turned on, it uses battery, even if that power it makes is not going anywhere to be used! It heats the electronics and wastes battery if left on and not needed!
However, I might suggest moving one step away from the trolling moter type deep cycle batteries and consider going slightly more money to get less work in keeping water in the batteries. I like AGM for that feature, even though it is still lead acid and not as great as lithium, it also works without the major changes needed to get the full value out of lithium.
Standard lead acid are first level and cheaper, AGM is next step up at a slightly higher cost per battery but less work to maintain. Then lithium is top level but lots of items to change and also lots of money if not truly needed!

Inverter hidden under cabinet but may be able to access from outside compartment?
Point to know for future if all that lineup that is fed through invert should go dead some day?

There is a GFCI that is often hidden if we are looking at the inverter from the outside compartment! This is the view if you are inside looking toward the outer passenger wall. But if you are outside looking in a compartment you may never see this end to spot the tripped GFCI! Some report they can reach in and over to push the button but only AFTER they know it is there!

That may be something to keep a note or check on before needing to know?

 

[searranch]

Thank you so much for going through the trouble. What a great Resource. Thanks again