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View Full Version : Battery not charging, but will run without a battery



jokerkit
05-03-2007, 04:39 PM
I have a 1986 Big Red (250 ES) ATC that will not charge the battery, but it will run without one. It works good, but after a few weeks the battery will get weak (more so if you run the lights).
This motor is very simlar to the 300 utility quad.

sideways
05-03-2007, 05:04 PM
bad voltage regulator? it is an 86 so the charging system could be bad