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k6ncx's avatar
k6ncx
Explorer
Feb 27, 2017

Replacing converter/charger, adding inverter and more

I have a 2016 Thor ACE 30.1. As I've been typing this I realize that I'm dealing with pretty much the same set of issues with a communications vehicle I oversee for my county's Office of Emergency Services.

For a whole lot of reasons I want AC power (clean sine wave) available boondocking without running generator, much greater stored power in batteries, and the ability to charge those batteries more rapidly (with generator or shore power.

I do not intend to run air conditioner on inverter, but I do want to be able to run microwave or hair dryer as well as TVs and etc.

I know there are charger/inverter units which also handle the transfer of AC load to generator or shore power to inverter and back, and charge batteries at a higher rate. But I don't know if any of them will properly charge LiFePO4 batteries. Nor do I know if any of them will also manage charging from solar panels. Recommendations? Ideally I'd like to manage everything in one place, but two units would be better than three or four, or more!

And I'm not sure what to do about the chassis battery, which I would probably not replace with LiFePO4 battery. Since the updated house system would not optimally charge the chassis battery (and vice versa, the F53 chassis electrical system would not optimally charge the house battery,) I've thinking maybe I should just make them independent.

4 Replies

  • Mircowave and hair dryer will drain your batteries so fast you will find that you are much better off running the generator for those short periods of usage unless you are willing to pay for a battery bank like those found in a Tesla electric car.
    The chassis battery should not even be a concern unless you plan to be parked for weeks or months without starting the engine. If that's the case (and you setup does not charge the chassis batteries) there are stand alone and add-on chassis battery chargers.
    Not only do you need a good inverter, you need to ensure that inverter has enough charging capacity to charge your batteries as quickly as possible. Charging your batteries will require that you run your generator. If you don't want to do that then you need to install a whole bunch of solar panels but since they do no good after dark you will still likely run the batteries down running the microwave at night and a hairdryer in the morning unless you plan to install a whole bunch of battery capacity (and even then.....).
  • Grab some 6 volt golf cart batteries at sams and then add a 2 or 3 k inverter. I just put 6 batteries and a 4k inverter in my truck camper. It's not that hard.
  • Using LiFePO4 batteries makes finding an "all in one" solution more difficult.

    Xantrex PROsine 2.0 handle automatic transfer, DC-AC inverter and charging of lead-acid batteries.

    LiFePO4 are very expensive, but do store a lot of energy for their size and weight. If you decide to stay with lead-acid, make sure you buy true deep-cycle batteries. Trojan T105RE are very good. Not cheap, but good.

    What ever you choose, you DO want to keep the house batteries and vehicle battery on separate circuits.
  • If you really want to do it up right be prepared to dig deep.

    I trashed the junk converter/charger & installed a Magnum Pure Sine Wave 2000W inverter/charger. Also took out the little group 24 12V wet cell batteries & installed a single Lifeline 4D AGM in 2010. As of 11/16 it was still going strong. Don't remember exactly what the total upgrade was but think it was just south of $2500.

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