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Old 05-25-2023, 07:14 PM   #41
Senior Member
ducksface's Avatar
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 5,610
THOR #13932
I don't know. The only I've seen were axle mounted,
They were on arms that fit above and roll down.
You're right my lift might make room for it all to work.
I think my black tank is in the way, but I'll cure that.

We'll know before the year is over.
I can put chains on pretty quick but there is really no worse job than installing chains.

The pic is four sets, 8 wheels of v bar chains and tighteners awaiting a mount to put them in the polaris's ranger and sportsman.

I'm all about chains and winches and 4x4.
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Below is a link to most of my modifications either accomplished or pending.

Click on my pictures then click the pop-up for a full screen zoomable picture.
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Old 05-25-2023, 08:00 PM   #42
Senior Member
happy's Avatar
Brand: Thor Motor Coach
Model: 2022 Axis 24.1
State: Kansas
Posts: 637
THOR #24565
I'm not sure how they get put on. I know a guy who is a county snowplow driver in upper Michigan. That is my closest personal experience. If you could put chains on in your shop at home and then drive to the snow that would be easy!!
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Old 05-25-2023, 08:09 PM   #43
Senior Member
Brand: Still Looking
State: Texas
Posts: 6,112
THOR #2121
Originally Posted by Chateau_Nomad View Post
Got the two 100Ah LiFePO4 batteries and 3k inverter installed and working. Did a few DC amp draw tests with clamp meter directly on battery cable:

Inverter draws 3.7 amps idle
Uses .1 amp on power saver

Refrigerator draws 29 amp (-3.7)*
Microwave 120 amps (-3.7)
Water Heater 120 Amps (-3.7)
Portable heater 131 amps (-3.7)
A/C uses 180 amps DC current (-3.7)
*Readings include inverter amps

Furnace blower minimal

Just ordered two MaxxAir Deluxe fans. They're supposed to be ultra low amp draw. Will test after install for proof.

Based on this, I would require something like 12kWh to run the A/C overnight.

Your air conditioning data seems unusually high, even if you have the optional 15,000 BTU/hr unit; which I assume you do. In any case, if running it overnight when there is no sun and temperatures are much more favorable, A/C power requirement will be much lower when compressor is operating, and duty cycle will be much lower as well. You may need 12 kWh for say an 8-hour night, but I doubt it would be that much.

Just finished helping with design and installation of a similar upgrade, but with greater lithium capacity and two smaller air conditioners. Motorhome is roughly same size as your 24F. While taking initial data, it is obvious that each A/C power requirement will vary significantly depending on temperatures. In evening with inside and outside temps in the low 80s they only pull around 8 Amps each, or just under 1,000 Watts. However, if turning A/Cs on when inside and outside temps are both 90 F or higher can easily lead to current in 12 A range, or 50% higher.

Just mentioning this to make everyone aware that running A/C overnight from batteries isnít that impossible or cost prohibitive any more. This is particularly the case when the motorhome has a segregated bedroom area with its own small and efficient air conditioner. Unfortunately, your 24Fís open floor plan requires cooling the entire MH for the most part.
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Old 05-26-2023, 01:43 AM   #44
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Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
Posts: 2,941
THOR #16721
All of those readings were taken with a clamp multimeter on the positive cable between the batteries and disconnect switch. I too was surprised at the A/C draw. I was getting about 12 amps solar late afternoon today... which means I can run two MaxxAir fans pretty much off solar during the day, and negligible power use at night.

I'm not planning on using A/C off batteries with this setup... I think the battery bank is too small. The intent is pretty much everything but A/C. I may add another 100Ah at a later date.
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