Batt is fresh out of box, new, grounded to frame. I tested with volt meter, when machine is off the battery drops below 5V.More info...
Whats the age on the mighty max?
I bet your "key-on" is dependent on the "blue light" coming on (= the isolator being connected). If it is, then there is an issue.
- Is the mighty max grounded to a frame or back to the primary battery? Where exactly did you ground it.
- Is the mighty max good, have you tested it standalone.
I’d throw it on a charger and get it up to 12 at least.Batt is fresh out of box, new, grounded to frame. I tested with volt meter, when machine is off the battery drops below 5V.
Not tested standalone.
Got to figure out why this is happening.when machine is off the battery drops below 5V.
Yes, it that because the aux battery would drain the main battery, causing it to go below 12.7? I watched it on the dual meter, that's when it all shuts off, around the same time as the delay with the "key-on" switch to activate aux battery. I can hear the isolator "Click", but no juice.Got to figure out why this is happening.
Your delayed "key-on" status, is a result of the isolator connecting thus proving enough power for accessories.
IDK then... It sucks to have a bad battery.mines 2023. 3 seat, bolted to the frame.
Thank you yet again, gentlemen. It is what it is.Since you have a voltmeter, I suggest removing the ground from the Aux battery. Check and note voltage. 5 volts is a strong indication of a DOA battery. But just to be sure, charge it with a separate known good charger. When it is fully charged, check voltage, if good, let the battery rest for a few hours and check again. Preferred if you can load test it, to be sure. I agree with our fearless leader . . . and think the battery is probably bad.