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Old 12-29-2019, 05:12 PM   #1
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LiFePo4 and inverter upgrade in class A

Has anyone upgraded the inverter in their Alante (and possibly Precept) from the Xantrex XMPrro1000 to the XMPro1800 or a pure sine wave inverter without a built in transfer switch? I'm in the process of doing this AND upgrading to a LiFePo4 400ah battery and installing it under the bed next to the inverter. I have the new battery and inverter connected and working together. I'm trying to get the inverter connected to the existing everyday now and seem to be having some issues
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Old 01-02-2020, 02:22 PM   #2
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The last sentence make no sense.
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Old 01-02-2020, 03:31 PM   #3
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Quote:
Originally Posted by Vicr View Post
The last sentence make no sense.
Damn autocorrect! Should have been "...existing electrical..."

I got it all connected now and everything seems to work, except my main power switch does not turn off now! Not a big issue since I have solar installed and that will charge far more than the switch light will consume.
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Old 01-12-2020, 09:38 PM   #4
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I completed the wiring of my "proof of concept". The OEM Progressive Dynamics charger/converter is disabled and I installed the 40a charger that came with the battery. When I plug my shore cord into the new 30a outlet I installed with the other end directly wired to the 2000w pure sine wave inverter (upgraded to this instead of the Xantrex xm1800) with 12/2 AC wiring, I can now run everything in the RV of the battery (I will not run the air conditioner this way). When I had many of the interior lights on and the microwave, the battery meter showed 1760w being pulled.

- I'm now working on installing an on/off switch between the 300a fuse coming from the battery + terminal to the inverter. Two other + wires will be added to this switch.
- Adding a - two-pole bus bar between the battery - terminal and the inverter. Two other - wires will be added to this bus bar.
- Running the wires for the battery monitor from under the bed to the wall across the bed where the solar MT50 remote is located.
- Running wires for the inverter remote switch from under the bed to the same wall as the battery monitor and MT50.
- Install USB ports into the side wall under the bed and wired directly to the 300a fuse and negative bus bar.
- I also installed a switchable 50a breaker coming from the + terminal of the solar charge controller going to the battery. This will allow me to turn off the solar charging when the temps are expected to drop below freezing.

A couple more days and I should have this project completed!
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