Forum Discussion

Explorer

Jun 13, 2014

Help ! generator won't start

Just started boon docking in Acadia NP and my generator won't start even though house batteries read 12.3V.

If I "jump start" the house batteries from the chassis battery the generator starts. Also checked VDC reading at Generator and it reads 12.3V. Confused because chassis battery reads 12.3V as well but the jumper start works to start generator!

House batteries are dated Dec 12!!! All levels are good in battery fluids.

Also, battery monitor installed with coach reads All Full on batteries but 13 hours of NO use (only fantom pulls -- gas detector, frig, etc). I didn't even use any lights last night and it wouldn't start this morning. All I get is a clicking and it tries to start but everything resets--has detector.

I think bad batteries with their age but being in Acadia NZ...nothing close to check batteries.

Any ideas or ill have to drive to Ellsworth ME to have the batteries checked and/or buy new batteries!

Thanks

MiRV
Explorer
Jun 13, 2014
Thanks for info and I'll charge some more with the generator. As for checking batteries I've been told to do it after charging you wait a few minutes put a load on (turn on lights) and take reading? Is that the best way to check battery level with a volt meter?

Thanks again and very much appreciate the chart!
RoyB
Explorer II
Jun 13, 2014
Here is a handy little chart showing approximate charge state of the batteries that might be helpful for you.

We work very hard to not ever let our batteries get below 12.0VDC before being re-charged again...

Roy Ken
2oldman
Explorer II
Jun 13, 2014
12.3 is not fully charged, but, it sounds like the combination of the two sets of batts provides enough current.

I don't know what YEAR your Dec 12 is, but I'm pretty sure with a full charge it would work.
darsben
Explorer II
Jun 13, 2014
12.3 = Batteries almost discharged. Charge batteries and then take a reading