Inverter for 2024 Micro Minnie (2225RL)

[Jws225rl]

I am replacing the lead acid batteries (Qty = 2) with a 300 AH Li battery. I plan to mount the new battery in the front storage compartment. In addition I have purchase a 2000 watt inverter with a build-in transfer switch.

What is the best way to run the AC cable from the storage compartment. The cricuit oanel has a lable the says it is inverter ready but I do not know what that means. Any suggestions?

 

[creativepart]

I don't know what they mean by "inverter ready" perhaps you should call Winnebago Towables Customer Care and see if they can fill you in.

Customer Care
(574) 825-8052

Generally, you want the inverter to be very close or adjacent to your new Battery in the compartment. That allows for very short, heavy gauge wire from the battery to the inverter which is required for best performance. However, the output from the inverter is just 110vac which is nothing special and as such can support a longer run of household Romex between the inverter and the power center of the RV. So, place the inverter near the battery and run it's output to wherever is convenient based on your plans.

To answer a lot of your question it would help to know what you plan to run via the inverter. Do you have a specific plan?

 

[Jws225rl]

Thanks for the information. I contacted Winnebago and they very helpful. The inverter prep means they have a dedicated GFCI circuit in the panel for an optional inverter. There are no heavy loads on that circuit breaker. Also they have a Romex cable loop near the storage pass thru that I can splice into to feed the inverter ATS.

 

[creativepart]

That's helpful information. You'd think they'd have that info available in your TT right from the start.

Does your inverter have an ATS or AC Pass-through? I've heard of both, but I'm more familiar with the Pass-Through system.

 

[Jws225rl]

I agree the inverter information should be more accessible. May be a liability issue?
I have a Renogy 2000 watt inverter with a built in ATS. The ATS bypasses the inverter when there is AC power on the input (hardwired). Have not tested yet but should work.

 

[creativepart]

The ATS system brings up a question.

The Inverter is wired to a a "dedicated GFCI circuit in the panel" so, when the ATS bypasses the inverter do all of the loads on that circuit lose 110vac power?

With a Pass-Through non-inverter connected circuits are powered by shore power, and since AC passes through the inverter it is still delivered to the inverter specific dedicated circuits.

I'm unclear on how this works with the ATS.

 

[Bnystrom]

Jws225rl, did Winnebago specify what is powered by the dedicated inverter circuit? A critical concern is avoiding a "charging loop", where the inverter draws power from the batteries, converts it to AC, which powers the converter, which converts it to DC to charge the batteries. Hopefully, the inverter circuit does not power the converter.

A less critical situation is that you probably don't want your fridge automatically switching on AC when the inverter is on.

When I installed an inverter with ATS in our View, I ended up splitting the shore power/generator line, sending one leg to the inverter and one to the converter and fridge. This required separate breakers outside of the main power center. The inverter output goes to the main input breaker and powers everything except for the converter and fridge.

I've attached a diagram that should help to explain this, but hopefully you won't have this issue.

 

[IdahoHunter]

This thread of my installing an inverter on my 2024 2018DS may help.

https://www.winnieowners.com/forums...-prepped-2024-micro-minnie-2108ds-368079.html

 

[Jws225rl]

The circuit breaker for the loads connected to the inverter is 15 amps. I contacted Renogy about their ATS function . They said that once the AC power is lost on the panel the ATS will output AC to the connected devices. They said the inverter will not back feed any power back to the panel.
The inverter is the first device on the circuit. This would prevent any other loads not on the inverter circuit from being powered, like the converter. I will be able to test that in a few days.
I think the diagram above shows the inverter powering the main breaker but I am only powering one circuit breaker.

 

[Morich]

There are motorized RV with a system of this sort and we have run through some problems /failures but I have long forgotten the details of which RV it involved. If one was interested in looking at the details and schematics of the build, it might be worth looking at enough of the drawings to find that setup?

As a way to cut the chase some, we might guess that the full blown inverter with pass through are not terribly old so look in the 10-15 year old group?

 

[Jws225rl]

I finally completed the install of the Li Time 300 ah battery on my 2024 Micro Minnie 2225. Also installed a Renogy 2000 w inverter. The inverter ATS works as advertised. The RV was prepped for an inverter so the job was a lot easier than doing it from scratch. When on shore power the ATS bypasses the inverter but once shore power is lost the inverter kicks in with no noticeable flicker on the lights.
The only negative I see so far is that if the inverter is turned off there is no power on the inverter loads even if there's shore power. Having issues getting the converter to recognize the Li battery. If anyone knows a good converter let me know.