Batteries not charging-both engine and coach

[Jon]

--- In WanderlodgeForum@yahoogroups.com, "freewill2008" wrote:
>
> If the charger reads (or is expected to read) 14 to 14.5 volts, then it must
be a "smart" charger. If it is a smart charger, then it should show a high
voltage when connected to a discharged battery, but with no battery connected it
should automatically show a lower voltage.
>
> If the charger is not a smart charger, then disregard.
>
> In either case, you might try disconnecting the the battery bank(s)from the
bus and borrow/beg/rent/buy a 40-50 amp portable charger that has a battery
reconditioning function to see if you can bring the batteries back. I've had
some good luck with this, getting extra months or years from batteries that had
experienced a complete discharge.
>
> The corollary to trying a reconditioning charger on the batteries is to try a
different battery on the charger. Any available partially discharged battery
connected to the bus charger will tell you if the charger and isolator are
working. Use a specific gravity tester to see if the battery gets charged.
(Also, use the tester on the bus batteries to see how badly discharged they
are.)
>
> Finally, going back a step or two, did you check the voltage at the batteries
with the charger on/charger off? If the voltage at the battery post(s) does not
go up when the charger is turned on, then there is a problem with the charger or
between the charger and the batteries.
>
> Bob Griesel '84 FC31 WLII WA
>
> --- In WanderlodgeForum@yahoogroups.com, "Ed Gardels" wrote:
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
wrote:
> > >Ralph, Thanks for the input. Yes I put a meter on the contact of the bosch
relay and read 4-5 volts. I then remove the + wire from the charger and get 13v,
go figure....
> > Ed Gardels 89SP
> > Arlington Tx
> > > Hi Ed:
> > >
> > > Just a curious question to start; Have you checked the output dc voltage
> > > from your chargers? they should be reading 14.1 or so dc volts at the
> > > source. If only reading 12.3 vdc then the chargers have taken a hike on
you.
> > >
> > > Safe travels,
> > >
> > > Ralph and Charolette Fullenwider
> > > 84FC35 "Ruff Diamond"
> > > Duncan, Oklahoma
> > >
> > > At 05:01 PM 5/5/2009 +0000, you wrote:
> > > >--- In WanderlodgeForum@yahoogroups.com, "Chuck Wheeler"
wrote:
> > > > >Thanks for the response, Chuck. Actully i tried that a couple of weeks
> > > > ago, but the chargers didnt keep up. Its the first time that the engine
> > > > batteries went down too. I think that a clue to my problem, since it
> > > > deals with both seperate banks of batteries. I have also tested the
> > > > battery isolator. I have exausted my ideas.
> > > > Thanks
> > > > Ed Gardels 89SP
> > > > Arlington Tx
> > > > > Ed,
> > > > >
> > >
> >
>



Go to Walmart and buy a cheap Hydometer and check your battery water. Simple
easy to use and you can see if what condition your battery is in. Good site to
use if not familier with what a Hydromter does and how to use it.
http://www.batterystuff.com/tutorial_battery.html