I suspec that the flat battery is the one on the bottom (nearest ground), and
that there is some add-on doodad hooked onto only the bottom battery, because
that is where you can scabb off 12 volts. That doodad is probably on,
constantly, thereby discharging the one battery. Check for a wire going to the
junction between the two batteries. Jim
Shannon Miller wrote:
> Last fall, I managed to purchase a 1985 M1010 at a city auction. The truck
> has 22K miles and is in good shape. I inherited a charging problem with the
> truck that I have been searching for the answer. That is what led me to
> this site several months ago.
>
> The charging system consists of 2 28V, 100A generators charging the two 12V
> batteries. I get 28V accross the batteries but one battery will overcharge
> and the other will go flat. I found a listing from 1997 describing the
> exact same problem but no followups were given. I have wiring diagrams on
> the way and hope that they will shed some light on this problem.
>
> Any ideas would be greatly appreciated.
>
> Keep 'em on the road.
>
> sgM1010
>
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This archive was generated by hypermail 2b29 : Tue May 01 2001 - 07:42:39 PDT