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As my OEM batteries die, I am replacing them with Shorai batteries. They hold a charge just about forever, and generally have higher CCA than OEM for the same application. Some people will complain about cold weather performance, but I wouldn't know about that - south louisiana and all.
I'm in Florida therefore I ride year round. Very hot and rough on batteries from now until September. Also, live waterfront so I am sure the Gulf salt doesn't help the situation. My OEM batts go out every two years or so-
However, now I religiously use a tender, so stupid simple there is no excuse not to...regardless, much better life since on a tender. Invest in one.
Get a battery tender and use it.
Not just now and then -- whenever the bike is parked at home, put it on the tender.
I've got a 2007 Road Glide that I bought used in 2011. Have kept it "on tender" since it came into my possession.
It still has the factory-installed battery in it.
Eight years isn't too bad.
But I doubt it would have gotten this far without the tender.
When I get off the bike I turn it around, back it into the garage, set it on the sidestand, and hook up the tender. I use a stick to keep the wire from touching the hot exhaust.
I use a Schumacher battery tender I got from amazon...
The battery in my 2010 FXDC just died short of 5 years. AFter reading a few threads here it came down to Big Crank, MotoBatt and Chrome Battery I took the cheaper route and just bought from Chrome. There is a 10% off coupon and I got the replacement for <$60. There were some good comments here and on the Chrome website about their batteries. CCA is the same as OEM; I would have liked to go a bit higher with CCA but I think this battery will work fine and at half the price of most others. Paid $56 shipped after coupon.
And yeah, I would recommend a tender year round when not riding although it didn't seem to add life to my battery.
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