16-09-22, 09:08 PM
Batteries are not designed to last 20 odd years at all, so my immediate thought would be you've had your moneys worth, get a new one.
A battery in good nick should be at least 12.6v when everything is off. It's not about the mileage, it's more about the 2 decades. :lol
With engine on and ticking over it could be anywhere between 13.8v and mid 14v, and upper 14v when being revved.
Headlights do make the volts drop quite a bit but once the bike is moving more charge will pass through the battery.
A battery in good nick should be at least 12.6v when everything is off. It's not about the mileage, it's more about the 2 decades. :lol
With engine on and ticking over it could be anywhere between 13.8v and mid 14v, and upper 14v when being revved.
Headlights do make the volts drop quite a bit but once the bike is moving more charge will pass through the battery.
More people are born because of alcohol than will ever die from it.