I went out to my farm to pick up my 2015 rzrs 900 EPS so I could do some fabrication on it over the holidays, went to start it and the battery was stone dead. It wasn’t parked near power so I couldn’t put a battery tender on it, but it has only been sitting for 2 weeks. That being said… it has been as low as -20C at night.

Towed it into the shop overnight to thaw out with a charger on it and the next morning in fired right up. I let it warm up to operating temperature, loaded it on the trailer and took it home. When I shut it off once it was on the trailer there was still an electric motor type sound or a whistle type sound coming from the engine bay area. Sounded like the fuel pump but it definitely wasn’t the fuel pump.

When I got home, went to fire it up and it was stone dead again. Wouldn’t even power the power steering. Anyone have any ideas what would kill the battery so quickly?

And any idea what that sound is?

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