Forum Discussion

lamoz1's avatar
lamoz1
Explorer
Feb 06, 2019

Dead batteries woes

Hello

Well I've been at it for months now and cannot figure what is draining both my house and chassis batteries. 99 bounder with a cut off switch for both. I cut off the chassis battery and can hear a click at the control box. Most things shut off, like the ignition and power step, but have noticed it still has power to the cigarette lighter, LP detector, power to the generator and maybe the fridge. I don't think the cut off switch does anything to the house batteries. Both batteries are less than 4 months old, a marine rv for house and regular battery for chassis. I turn the generator at least 1hr per day to keep them topped off but sometimes I come to find one battery dead or both in less than
a day. I've use a multi meter to find a drain and I get none. When running the generator my chassis battery is not getting charge, instead is being drained as is connected to the generator and needs 12v to run if I'm not mistaken. This whole issue is making me pull my hair, since I will be living in it for a few months with no shore power.

suggestion are welcomed. Thank you

12 Replies

  • wa8yxm's avatar
    wa8yxm
    Explorer III
    First: IF the batteries are disconnected.. In "Store" mode. they WILL NOT CHARGE and in fact the generator should not start either.

    If the batteries are not being charged by the generator first check the breakers on the Genny. Should be two. if your rig is 50 amps one runs half the RV the other the other half ONE runs the converter. (It is on one or the other halves)

    On a 30 amp RV one runs most everything the other one A/C.

    Then check the breaker box. Make sure you don't have a tripped CONV breaker (I've had that)

    IF like mine your converter is a "plug in" model. Make sure it's plugged in (YES I've had to do that several times)

    Now we test the converter itself. And post the results.
    Measure output voltage

    There may also be a fuse or trippe circuit breaker in the line.


    IF you have a big INVERTER/CHARGER.. Well post that and we will modify the sequence.

    Next