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2003 Polaris sportsman 500 HO not charging battery

Wilkechr

By Wilkechr
in Polaris ATV Forum

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Wilkechr Rookie

Wilkechr

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So on this ATV the batteries keep dying to the point it won't start I'm on my 2nd battery this week it took me until this one to figure out that my ATV isn't charging it's on 12.75 volts when sitting in the ATV and it doesn't go up when being revved what are the chances it could be the rectifier/regulator vs the stator or CDI. I just replaced CDI and stator from a used ATV through a shop and I would hate for one of those to be bad. I was reading a couple of posts about the CDI but was hoping it was the regulator is there a chance?

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Mech Grand Master

Mech

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Posted

I doubt the cdi is causing the problem. 

If the voltage doesn't rise when the engine is running then you need to diagnose the charging problem. You should download a service/workshop manual and follow the test procedure as written in the manual.. It could be as simple as a blown fuse or a broken wire.

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