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Topic: trickel charge for start batteries (Read 1241 times) previous topic - next topic

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
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

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
keith williams

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
keith williams

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
keith williams

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
keith williams

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.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

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
keith williams
 

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

keith williams