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dockmasterdave's avatar
Nov 11, 2014

Battery drain

Got a new walmart MAXX24dc a year ago. It was free under warranty, it's the one in the trailer when I bought it.
It was only 1 year old. Now the replacement is about a year old and doesn't seem right.
It stays plugged in all the time at home, and we don't boondock at all. I do occasionally unplug it and let it run down to about 12.2 volts, then re-plug.
Now it seems after weeks of being plugged in, if I unplug it's down to 12.2 volts the next morning, with just normal parasitic drain.
I don't have a hygrometer. I have cleaned battery terminals and recharged, no change.
This doesn't seem right to me. How about you?
Thanks in advance for the advice.
  • Tag on the battery states 92 amp hr. Actually it says at 1 amp draw 92 hrs.
    I'm just wondering if this is not holding charge correctly?
    Good info on the link, thank you.
  • Here's an older posting for a "Maxx" 24 DC from Walmart. It indicates that the Maxx is only 73 amp hours, meaning the one you have is even lower.

    I see that you have edited your original posting & you do have a "Maxx"


    Older RV Net posting

  • Fluid levels are fine. When plugged in I don't see charging bubbles but voltage jumps right up to 13.6.
    Just seems it shouldn't be down to 12.2 overnight with everything turned off.
    It's supposed to have 92 amp hrs.
    I would expect to get a couple days. Maybe I'm just being overly nervous.
    I know I have seen "state of charge" charts etc. Just wondering if this is discharging too fast.
    If it is I may change to duals. I figured, using it the way we do, this battery would be fine.
  • Have you checked the voltage level with it disconnected? Have you checked the fluid levels?

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