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josslund's avatar
josslund
Explorer
Nov 20, 2017

winnebago 2002 adventurer (30y)

I recently upgraded from two 12v to four six volt in series under the step, and moved the motor battery into the compartment with the water pump (in a plastic case). However, when I connect to 110, my coach batteries do not seem to be charging. They did charge however, when i took a positive cable from my motor battery to the house batteries. I think I must have not connected the line from my convertor that charges the battery. If you have an '02 adventurer, would you please confirm for me that there are two positive cables attached to your twelve volt batteries (plus the tie in cable). I know i'll have to do some testing on my own system, I just want to be sure what I think did is correct (or shall I say, incorrrect)
Class A

7 Replies

  • josslund's avatar
    josslund
    Explorer
    Nov 24, 2017
    Since you have an '03, i'm sure your connection is the same. I'm going to be doing my trouble shooting this weekend, and appreciate all of your suggestions (M.H. is at a friends house for extra Thanksgiving capacity). If you could shoot me a picture of the inside of your battery case, I'd really appreciate it.
  • Hank_MI's avatar
    Hank_MI
    Explorer
    Nov 24, 2017
    josslund wrote:
    Hank MI wrote:
    Ours is an 03, only one cable to coach batteries. Converter doesn't connect directly to batteries, it's on the other side of the disconnect solenoid. Go Winnebago website and you can download electrical wiring diagrams for your coach.


    A friend of mine said maybe I accidentally hit the "kill" switch for 12v to the coach (by the step) and it discharged because of that. I've owned the coach for fifteen years, so I guess i should know this, but, is that a "plausible" theory?


    That's possible but your converter shouldn't be charging your chassis battery. It should be charging the coach batteries. Is it possible you swapped the main positive cables for coach and chassis batteries? As mentioned 4 6v batteries in series is 24 volts. You should have 2 in series paralleled to another bank of 2 in series. Make sure switch is on to connect the batteries. Disconnect the positive cable from the coach batteries. Disconnect shore power cable. Do you have interior lights? If so you swapped the cables and the lights are running off of chassis battery. A volt meter sure would come in handy.
  • ArchHoagland's avatar
    ArchHoagland
    Explorer
    Nov 24, 2017
    josslund said:

    "I recently upgraded from two 12v to four six volt in series under the step"


    If you wire four six volt batteries in series you will have 24 volts across them.
  • josslund's avatar
    josslund
    Explorer
    Nov 21, 2017
    Hank MI wrote:
    Ours is an 03, only one cable to coach batteries. Converter doesn't connect directly to batteries, it's on the other side of the disconnect solenoid. Go Winnebago website and you can download electrical wiring diagrams for your coach.


    A friend of mine said maybe I accidentally hit the "kill" switch for 12v to the coach (by the step) and it discharged because of that. I've owned the coach for fifteen years, so I guess i should know this, but, is that a "plausible" theory?
  • Hank_MI's avatar
    Hank_MI
    Explorer
    Nov 21, 2017
    Ours is an 03, only one cable to coach batteries. Converter doesn't connect directly to batteries, it's on the other side of the disconnect solenoid. Go Winnebago website and you can download electrical wiring diagrams for your coach.
  • Artum_Snowbird's avatar
    Artum_Snowbird
    Explorer
    Nov 20, 2017
    Best thing to do might be to take a set of jumper cables off the battery bank and hook them to two wires that you can screw under the converter terminals. Do the negative first and see if they are now charging, then try the positive on it's own. Your wiring might be faulty, or it just might be loose connections.

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