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wpatters1229's avatar
wpatters1229
Explorer
May 22, 2022

how to replace the charger inverter in a four winds

I have a 2006 class C four winds motorhome and want to start using AGM batteries. The charger inverter is the original one and I want to upgrade it to be able to charge the AGM batteries. Preferable a smart charger. Can I replace the current inverter charger in the same space or do I have to re-do that whole section that is currently under the side of the bed in the back of the rig?
  • wpatters1229 wrote:
    OK I have had the original charger inverter power supply working and the AGM battery is charging just fine. The problem I am having now is that the if I am running my A/C and my Microwave on shore power sometimes either or will trip the breaker. I just think the whole power supply unit is old and needs replacing. It is a Parallx 7300 Series power supply. I am thinking is it possible to change to a 50 amp supply instead of the 30?

    One other question. Do these new supplies come with a fan for cooling the unit? The current one to my knowledge does not.


    wow this was confusing for a minute, you tagged onto a thread that has been dead for over 15 months.

    Yes, it is possible. When I got my camper, it had an old glass tub single stage charging parallax and I upgraded to an intellipower 4000 series power center which is a 30amp panel but the next step up in the series, the 4500 series is a 50 amp input power center. I did have to cut the opening about an inch bigger in one direction and 1/2 the other so just be prepared you may have to do a bit of modification to get it mounted properly.
  • wpatters1229 wrote:
    OK I have had the original charger inverter


    You have a Converter/Charger, not an INverter/Charger.

    They are two completely different pieces of equipment as someone described earlier.
  • I am just going to leave it alone and replace the circuit breakers. The 20/30 dual breaker. Has always worked just fine until I had to deal with high outside heat. When the heat is not high the A/C works fine. Just not worth the expense to go to 50 amps just for an occasional problem. I also need to figure out if the fan inside the unit is good or bad. I never hear it on.

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