My '07 has the factory battery still. Are those factory batteries 36mo, 48mo? I am thinking maybe it is a good winter idea to replace it as a preventative maintenance measure. Also, does the Thundermax have non-volatile memory so it won't loose its settings/curves when/if I replace the battery?

 

I too have an 07 and my battery went dead right before the weather got cold.....November I think. I have read where others are still going strong. I guess it depends on how old the battery was when HD put it in the bike. As for losing your settings.....no. I have a Dobeck and when I replaced the battery everything stayed the same.

 

Mine is an 07 and the battery is still going strong.

I ride every weekend. Yes every one (52 of 52)! Never during the week (well rarely). Never on a tender.

 

The expected length of life is 10days after the warranty EXPIRES!!!

 

your being generous...its more like 24 hours!

 

If you decide to get a new one, an option is a Interstate battery. They sell a high output 320 CCA. The stock HD is only 270 CCA. The Interstate is around $90.00

 

I put mine on a charger if I have been off for a week. This year more than ever!!! due to the winter we have had. Just did it this morning as we are going to be in the 60's today and I am going to enjoy a ride.

 

I have a 07 lowrider with 18k on battery. Hate to have a dead battery 200 miles from home. How long do they normaly last?

 

Thanks jwatkc,didn't know what the cca was on hd battery 05 rk custom time for new. Interstate 320cca.

 

Before you by Interstate or any other, check out Odyssey.