Forum Discussion

BobDarlaCook's avatar
BobDarlaCook
Explorer
May 22, 2013

Batteries overcharging

I do not plug in my MH when it's parked. I plug it in the night before we leave to chill the fridge. Most trips are just weekenders. I keep checking the batteries and they are overcharging/boiling over each trip just from the couple days of camping plus the genie running on the road. Besides trashing the battery cabinet, they won't hold a charge between trips. I have to start the engine to get power to start the genie. I had to replace the batteries several months ago when they exploded... before I realized I had this problem I wasn't checking the water level as often as this prolem would require and I suspect they went dry and had a total failure. I know I need to get it fixed .... is there a specific problem or am I looking at having the whole electrical system diagnosed to pinpoint it ?
  • JanTx wrote:
    so many things to learn and remember,, scares me to death!


    It just takes some time. Nothing really hard about it, just a lot of reading to do.

    Barb
  • so many things to learn and remember,, scares me to death!
  • stuplich wrote:
    FIRE UP wrote:
    Well Bob,
    if your rig is a diesel, about 99.9% of them have inverters, NOT CONVERTERS, and, many of them are Inverter/Chargers so, you could be having an issue with that system. Now, if your coach is a gas unit, about 99.9% of them, come with Converters, not Inverters!


    Fire Up

    I beg to differ!
    I think that MANY,(MOST?), diesel coaches have a CONVERTER in their INVERTER/3 stage battery CHARGER.

    My Freedom 20 INVERTER/CHARGER is also a CONVERTER.

    Here's a link to my Freedom 20 manual:
    http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDEQFjAB&url=http%3A%2F%2Fwww.xantrex.com%2Fdocuments%2FDiscontinued-Products%2FFreedom%2520series%25201.pdf&ei=8vOcUbfsMKTgyQGc_IGoAQ&usg=AFQjCNEpd-ghhONSAiIWxw8_5R9taIWcXw&sig2=xpe7W9EKXVRXcr1u7EUnvQ&bvm=bv.46751780,d.aWM

    See page 4, "Introduction".

    Mel
    '96 Safari


    Mel,
    Well Sir, you are correct in the fact that there IS a converter "inside" your INVERTER. While both of us are correct, my statement simply states that the primary mechanism for other than battery operation is, either a CONVERTER, usually supplied with a gas coach or an INVERTER, usually supplied with a diesel coach. Now, I don't work on these coaches day in and day out and, do not see or learn about what's new as todays coaches are sent out from the factory. My experience is from owning (4) motor homes to date. We've had (2) Class Cs, and (2) Class As. Both the class Cs and one of the As were gas units and for primary electrical operations inside the them, was a CONVERTER and NO INVERTER.

    But for our present coach, an '04 Itasca Horizon, 36GD with the 330 CAT, it comes with a Dimensions 2000 Watt INVERTER/CHARGER. Now, I've read up on mine a few times and, while I can't recall, it might state in it's specs that it too has a "Converter" built into it. I'll check into that so I know before I state anything I might regret. Thanks
    Scott
  • Gas Engine, Ford's chassis, V-10 . Two house batteries, deep cycle (27's i think ?)
  • FIRE UP wrote:
    Well Bob,
    if your rig is a diesel, about 99.9% of them have inverters, NOT CONVERTERS, and, many of them are Inverter/Chargers so, you could be having an issue with that system. Now, if your coach is a gas unit, about 99.9% of them, come with Converters, not Inverters!


    Fire Up

    I beg to differ!
    I think that MANY,(MOST?), diesel coaches have a CONVERTER in their INVERTER/3 stage battery CHARGER.

    My Freedom 20 INVERTER/CHARGER is also a CONVERTER.

    Here's a link to my Freedom 20 manual:
    http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDEQFjAB&url=http%3A%2F%2Fwww.xantrex.com%2Fdocuments%2FDiscontinued-Products%2FFreedom%2520series%25201.pdf&ei=8vOcUbfsMKTgyQGc_IGoAQ&usg=AFQjCNEpd-ghhONSAiIWxw8_5R9taIWcXw&sig2=xpe7W9EKXVRXcr1u7EUnvQ&bvm=bv.46751780,d.aWM

    See page 4, "Introduction".

    Mel
    '96 Safari
  • Read your inverter/charger manual and verify the charger/battery settings.

    Also never overfill your battery cells.
    Add distilled water to a point between just above the plates and the bottom of the split rings in each cell, but ONLY when they are FULLY CHARGED.
    If batteries are filled when low on charge, and then charged, there's a good chance that some electrolyte, (aka: battery acid), will "boil out".

    Mel
    '96 Safari
  • Well Bob,
    Let's start out with, what kind of motor home do you have? What kind of and, how many house batteries and, engine do you have? You see, if your rig is a diesel, about 99.9% of them have inverters, NOT CONVERTERS, and, many of them are Inverter/Chargers so, you could be having an issue with that system. Now, if your coach is a gas unit, about 99.9% of them, come with Converters, not Inverters!

    So, we need more info on your system before we can give an accurate assessment of a possible solution to your issues.
    Scott
    P.S. On edit, I didn't know the question has already been asked, sorry.
    Scott
  • 2008 Thor/Four Winds Hurricane. I don't have the inverter info with me, I can get that tonight. It is the factory equipment though if that helps.
  • It might help to identify the coach spefics as well as info on the inverter that's installed.
  • It sounds like you have an older converter that is over charging them.