I have had battery problems the past few months. It keeps dying after a few hours of riding. Tested the voltage at the battery with it running and its aroud 14.3 and I had just put a new battery on it. Also I charged it with a trickle charger before I put it on. Not sure what else to test.

 

You need to check if any draw at battery with ignition switch off. Could be a faulty ignition switch. If there is no draw, disconnect a battery cable and check voltage at the terminals 24 hours later with a multimeter. ATV batteries are famous for failing also, especially when new.

 

Thanks