08-24-2014, 02:02 AM
(08-24-2014, 01:24 AM)CIP57_imp Wrote: Probably has a bad cell or two. Just a bad battery. I'm sure your charging system is fine, just check the output with the new battery should be above 14 at 5000RPM's.
Tendering a battery all winter will also dry up (fry) cells and cause this problem.
Not trying to start anything, but I disagree with this statement. My bikes are tendered not only all winter, but all year round. Every single day. When I climb off my bike after a ride, I plug it in before I even take my helmet off. Our 09 Majesty still has the original battery it's over 6 years old. My ST battery that died was over 5 years old when it died, had been tendered it's whole life. It's replacement has been tendered every day since new. My son's FZ-1 battery was 7 years old when it died and had been tendered every day. Both of my brothers bikes and his Miata are on tenders every day.
I think on the old juice batteries, the lead acid kind, if someone didn't watch the fluid levels in the cells and let one dry up, they would sulfate and that cell would die ruining the battery.