Griff wrote:
You can -- sort of -- test this yourself. Charge up the battery until the charger indicates fully charged, remove from the charger, wait 24 hours, and use a voltmeter to measure remaining charge. This will identify a battery that's definitely bad but may not catch one that's iffy.
Well, I still doubt it is the battery. This problem has existed ever since I got the RV about 10+ years ago. I replaced both batteries when I got it and I know I have replaced the engine battery twice. Right now there is a "new" battery in it that has never even been used to start the engine. I did buy the battery about a year ago. It has been on a battery maintainer that whole time.
My batteries have always been strong enough to crank the engine for 5 to ten minutes before it finally starts. So, these are not weak batteries. And if it were a battery issue, then I would think that the hard-starting problem would go away, at least briefly, when I put a new battery in. Never happened.
I will, however, disconnect the maintainer and check the voltage after 24 hours just to see.
