My last Odyssey lasted over 8 years. That's waht I'll use when my HD craps out.

http://www.odysseybatteries.com/battery/pc925lmj.htm

 

That wally battery only had 240 cca....also HD will replace your battery..your covered.when I first got my bike mine went dead 6mo into ownership...check it out,have them pay for it..they will.

 

Just go to a local auto parts store. I got a sealed motorcycle battery for $60. As long as you don't have a ton of electronics like on a RG or EG you don't need an expensive battery.

 

Make sure the ground strap on the frame is very tight so it gits a good ground.
I too like the HD sealed battery.

 

even after we played punt-a-mole around the shop? lol. We'll have to see.

 

Reading the other posts, it's possible you got a lemon. The battery in my wife's 1990 Sportster 883 failed after only two years. I've heard others who got 6 - 7 years out of a Harley battery.

When mine is ready to be replaced, I'll go with the Odyssey extreme AGM (advanced glass mat) battery, which is the same technology as the Harley battery. You can get one with a metal jacket that fits your Superglide. They are vibration-resistant and I've had good luck with the one in my BMW R1150R. Here's the website if you're interested --> http://www.odysseybatteries.com/file...S-001_0108.pdf

UPDATE (April '14): The Odyssey battery failed after less than two years! I replaced it with the H-D stock battery and will not buy another Odyssey battery.

 

I had a brand new HD battery that was bad - about drove me nuts. It had a loose terminal and would short (or lose contact) internally "sometimes." I'd be riding down the road and the whole bike would just quit. Nothing. I'd mess around a bit and it would light right back up.

Two flatbed rollback rides later I figured it out. At first I didn't know if it was the ignition switch, or a wiring problem, or... Frustrating.

 

I honestly always figured that batteries are consumables - they're used up and replaced, not something you have a warranty on, except for the thing just falling apart in your hands. I've always just swapped in a new one when they die and never thought about it.

I think I may look into the odyssey, if I can find one near. otherwise, I'll go for a cheapo.

 

Someone had posted earlier that they don't make an Optima battery for a bike and that is correct. However, the do have the Odyssey Military grade dry cell and for bikes, this is the Optima. Who needs a tender when you have an Odyssey. Let it go dead, do it as often as you like and when you want to ride charge it the night before cause you ain't killing that battery. I've got 2 of them now and love them. My neighbor has a Gold Wing with enough lights to make it look like ET and he tows a trailer with lights too. He had put an original replacement in and that lasted a year before he went to a gel which lasted about 2 years before it went south. He now has the Odyssey dry cell and won't go back.

 

Because that lead and acid don't come from the same place your drinking water does. When you throw a battery in the land fill, which isn't too far from your house, that lead and acid makes its way back into your drinking water.

But hey if your of that opinion, why dont you just dump your motor oil in your local lake or the ocean, I mean it came from the ground, it must be ok just to pour it right back on top huh?