At an event and spent the better part of the day idling, riding at low speeds, and starting and stopping the bike (99 Fatboy). After about 4 hours the battery died. Someone told me the battery wouldn't be charging at low speeds (less than 2000 RPM’s) and was not surprised the battery died.

Agree?

 

True, not charging much at idle or low rpm,s but repeated starts over a short period of time will run it down in a hurry.

 

Do you have a battery tender?

 

Yes agree, more so if battery is over 4yrs old.

 

If you upgrade, look for the lightening start batteries. Mine is FIVE HUNDRED CCA!!! Plus a 5-second reserve, and cost was only around $100
Got a HF tender for under $10 and works fine.

 

I'd say it depends on what your idle speed was set to, how much charge your battery had to begin with, and the temps outside.

 

I never had that problem and I have been known to do a lot of short runs now and then. My original battery was in my deluxe seven years and I changed it just because. I gave it to a friend and he ran it at least a year trick is to tender the battery. Do not let the battery die every time that battery goes dead and you charge it you are shortening the life of it. I still believe harley batteries are one of the best and I would stick with a harley battery

 

There are advantages to glass mat, like being spill proof and slightly lighter.

 

Let's hope it's not a stator.
The one in my 99 softail went out.

If so let me know I have one new in the box I'd make you a good deal on.
I have no further use for it.