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swimmer_spe's avatar
swimmer_spe
Explorer
Jun 26, 2021

How to charge a battery

I will have access to a 1000w generator while I am camping fora few days. Would just plugging in my trailer to it be good enough to charge the battery for a few hours, or should I put a charger directly to the generator and battery to charge it? I have a 6a/4a/2a
  • To compare converter versus generator versus charger, you could measure the voltage across your battery terminals while charging with each and see which one produces the highest voltage.
  • swimmer_spe wrote:
    How would I find out what my converter can do?
    You look at the model number and search its specs.

    If you dont know where your converter is located, i promise its well worth putting on some old clothes and go lay under your trailer. Look around and wiggle stuff. See any signs of plumbing leaking? Any signs of rodents?

    Find your converter and tighten the main lugs. Would bet a million bucks you could add 1/4 turn on them if they havnt been touched in years. Cut power to the entire trailer and tighten every screw on the electrical service. I had a bunch of loose terminals on a 2013 trailer i bought in 2018.
  • WH is short for water heater. Some rigs have an electric element.
    Make and model of converter can be looked up to determine charge capacity.
  • enblethen wrote:
    Plugging into the genset using an adapter is the easiest. How fast charge would be determined by what converter you have. Some converters charger at a much higher rate then your portable one.
    Make and model of your converter?


    How would I find out what my converter can do?
  • BFL13 wrote:
    Depends on the converter size in amps and how low the batteries are. A 1000w gen can only run maybe a 45 amp converter, and that is with no other 120v appliance in the trailer on. So put the WH and fridge to propane and no hair dryers.

    If you have a bigger amp converter you can reduce its draw on the gen by charging when the batts are not so low and they accept fewer amps. If your converter has a Charge Wizard, you can set it to 13.6 at first until the batts are up some and then switch to 14.4 once the gen can take it.

    The 6a charger is a waste of good gen gas.


    What is a WH?

    The only other things would be lights.
  • Plugging into the genset using an adapter is the easiest. How fast charge would be determined by what converter you have. Some converters charger at a much higher rate then your portable one.
    Make and model of your converter?
  • Depends on the converter size in amps and how low the batteries are. A 1000w gen can only run maybe a 45 amp converter, and that is with no other 120v appliance in the trailer on. So put the WH and fridge to propane and no hair dryers.

    If you have a bigger amp converter you can reduce its draw on the gen by charging when the batts are not so low and they accept fewer amps. If your converter has a Charge Wizard, you can set it to 13.6 at first until the batts are up some and then switch to 14.4 once the gen can take it.

    The 6a charger is a waste of good gen gas.

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