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Yamaha 252X on single battery

gthorson

Jet Boat Lover
Messages
55
Reaction score
35
Points
72
Location
Syracuse, Utah
Boat Make
Yamaha
Year
2021
Boat Model
252XE
Boat Length
25
I thought I would post an experience here in hopes someone can benefit from what I went through. I've learned a ton from this forum and maybe I can contribute.

I was boating with friends and they needed a jump start. Without cables I was unable to help but I had the idea of just giving them one of my batteries for a time. I removed one battery and handed it over to them. I then put the Yamaha into parallel mode and went about my business. Everything worked well and I figured what a great bonus of the dual battery system. Soon after, I started to notice that my fuel level was running oddly low. Everything was working fine except for that. Because I recently had a recall fixed for the fuel vent , I started worrying that some mix up with that had messed with either the gauge giving false readings or possibly a fuel leak. The amounts of fuel leaked would have been in the 50 gallon range so I figured I would have smelled it. I went about my day and decided not to trust the fuel gauge knowing that my friends were around if I needed a tow. After trying to fill some ballast, the boat went into full low fuel level alert. With that, my mind finally remembered that I was missing a battery. After going through electronics glitch semi-hell when I first got the boat, I settled really quickly into the theory that getting the battery back would put things right. Even though the battery I had was still in good shape, and with the motor running the electronics should have had all it needed, the boat did not like missing a battery. At that point my friend had run his motor enough he was done with my battery and I got it back. The world was set right again.

So, the lesson to be learned. You can do it, but the boat doesn't like it. I suspect every vessel may vary in the electronics glitches that pop up.
 
Last edited:

anmut

Jetboaters Admiral
Messages
2,613
Reaction score
2,441
Points
257
Boat Make
Yamaha
Year
2020
Boat Model
212S
Boat Length
21
Yeah, i would never attempt to run on one battery, that's asking for trouble.
 
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