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Topic: trickel charge for start batteries (Read 1549 times) previous topic - next topic

Re: trickel charge for start batteries

Reply #20 –
I use my U240 and if I don't I check on things almost daily.  In Lufkin,TX I don't lose electricity for more than a few hours., and that is not often.
Pat,

Re: trickel charge for start batteries

Reply #21 –
Quote from: krwinfla –
how do i check if altenator is chargeing properly and if the inverter /charger is working properly on the voltage on the dash it only gets up to 11 volts 93 grandvilla cummings thanks for your help trying to learn how the system works
oki checked house battries sitting with every thing off 11.7 sane with start batteries i start unit up wjth engine and start battries stay the sane the house battries jumps to 16.7 volts no change to start batteries new in may water good no corrosion cleaned well set meter on pos and neg on alt running i show 19.5 v iam un able to connect to shore power at home  any thoughts thank you keith williams 94 grand villa u225 cummings

Re: trickel charge for start batteries

Reply #22 –
Boost switch in "ON"or "CHARGE" position?

Re: trickel charge for start batteries

Reply #23 –
not sure about the rebuild , it was in may prior to purchase i cleaned very well all connections even on inverter ,start batteries ane ne  not running battries house and start were 11.7 volts i started and house went to 16.7 volts and stare battries un changed amp gauge is at 11.7 ish i put meter to the pos and ned off alt ahd reads 19.5 volts shut off and house battries and up 12.8 start un changed iam unable to connect to shore power at home any thoughts thank for your help keith

Re: trickel charge for start batteries

Reply #24 –
16.7 is too high of voltage.

Re: trickel charge for start batteries

Reply #25 –
Could this.be.a isolator issue?
Check the lines coming to isolator with meter and report volts there
John

Re: Re: trickel charge for start batteries

Reply #26 –
switch on isolator has 4connectors voltage running one is12.5 two is 9.9 three is 12.5 and four is 12.2 this comes from alt so why isn't it higher thank you

Re: Re: trickel charge for start batteries

Reply #27 –
the boost switch was not on should this always be on when running/driveing ,my amp gauge should show about 13 v when just running@1500 rpm iam learning this system

Re: trickel charge for start batteries

Reply #28 –
yes 16.7 is too high but why dont it reflect that at the start battery and the 4th post on the isolator where the lead from alt goes to thats whats puzzling

Re: trickel charge for start batteries

Reply #29 –
brett, iam not quite following you , still learning this system i understand automotive chargeing systems but learning rvs thanks very much keith

Re: trickel charge for start batteries

Reply #30 –
Check the SENSE WIRE and terminals.  It is a small gauge wire.  If it is mostly broken (like one or two strands left or corroded connections, it can falsely report battery voltage to the alternator.

If in doubt, just run a new one from any connection on the chassis battery side of the isolator.  So chassis battery lug of the isolator, chassis battery terminal of the boost switch, chassis battery positive terminal itself, etc.

May not be the problem, but $2 worth of wire beats ASSUMING that the alternator is bad.

Re: trickel charge for start batteries

Reply #31 –
i recall seeing that brett. ill check in the morning if the other option i think would be the alt because it should show voltage going into isolator even it isolator was bad just would not have voltage comeing out do you agree thanks so muck brett, keith
 

Re: trickel charge for start batteries

Reply #32 –
the leece neville 14 amp alt can be adjusted  it ramped up 10 17 volts and i will adjust changes can me mad on interinal wireing to also se wireing i looke at the thin wire looks ok  iam going to adjust volts and go from there