New battery going dead

[Airlordd1]

I was on a ride two weeks ago and the battery started going dead. the voltage started at 14.1 and part way thru the ride it was 8.3. When we pulled over it required a jump to get it started.. it ran fine until I stopped again and turned it off.. The next day on the way home i bough5t a new battery. It showed 14.1 amps when installeed. by the time I got home 3 Hrs later it was down to 11.6. What do i need to replace ?

[Mr. Miyagi]

You can check the stator with a multimeter to see if you have an open winding. If that checks out, it might be time for a new regulator.

[Tcontrol]

Quick check with voltmeter…. Measure battery with motor off and bike switched off…. Make a note of reading…
now start bike and hold throttle to about 1600 rpm… (not criticle for exact speed of motor… just give it steady gas to keep bike running twice idle speed and steady… measure battery voltage….

a good charging circuit would be about 14.5 volts … if battery is still at voltage wheb bike is not running… then begin troubleshooting the charging circuit…