I finally got my voltmeter working again today and wanted to test another thing that I had repaired. I had worn my 10 yr old battery down flipping the bike on while not starting it during trouble shooting and it was at about 77% charge per my smart charger. I didn't wait for it to charge fully but took a ride and while on the highway at 83 mph my voltage slowly dropped to 11.8 volts. When I slowed down to 50 the volts went back up to 12.8. Nearing my friends house and going 30 it went up to 13.5.
On the way home I was doing 85 and it went down to 11.8 again. Thought it might have something with the cruise control so I shut it off. That made no difference. Slowed to 70 mph and voltage went up to 12.4. Slowed to 60 and volts went up to 13.3. Went 50 in a gear where revs were 4000 like at 80 but volts didn't really lower. Got home and sitting in the drive way I revved the engine to 4000 a couple of times and volts went to 14.2.
Turned it off and put the smart charger on it to see the percentage to see if the battery was charged up by my charging system. In 65 miles it had gone from 77% to 90%. I am not running any auxiliary lights or aftermarket bulbs. I have a power source that was switched off and the cruise made no difference whether it was on or off.
I do plan on getting a new battery too.
Normal? Thought volts should go up the higher the revs.
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