Depends on WHO's given the advise. Some folks on here that forget to hook their boat up properly or let their boat fall off the trailer on the ramp,. You think Ima listen to them. I think not. LOL I listen more often than not, just don't say nuttin.
Here's the plan. I need another short jumper to check to see if the TM is even working first. If it comes on under 24 volts, which it can, I'll take all 3 batteries out and get them all fully charged and take to battery place to get load tested. If it doesn't come on, I'll switch out the TM's and put my old one on for now. Least until I can get the terrova fixed.
THEN I'll go buy another battery if needed when I get it back. Why take them all out if it's the TM that's jacked up? I suspect it's the number 2 battery and the other TM is a 24 Volt so I only need 2 for it. One step at a time. Why do 14 things when only 2 are really needed? Guess if I was a fella that didn't have to work from daylight to dark every day, I'd have time to do that.