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Two years and 4 months on my Antigravity. No issues at all. Hasn't been on a trickle charger once. I also haven't had a single diagnostic code since the install. (Except for a the time me and four other guys got a nice water/gas mixture from a gas station in Kentucky). I have 38k total miles and I think about 31k were on the AG battery. The longest the bike sat was about 3 weeks and the coldest I've ridden is 25F. The bike was outside during a 17 degree night, but it was 25F before I left the next morning. No issues. EDIT: I did run the battery down to it's cutoff point once using an air compressor attached to a direct battery connection. (My battery is the "re-start" version, it basically shuts off when it hits a predetermined low voltage. Then it can be "re-started" by pressing a button on top.) The PA battery bracket covers up most of the button, but I was able to press it with a chopstick. When I started the bike, it came up with several faults. All of them with an "H" (history) and related to some module losing connection or not communicating. All cleared, and haven't seen them since. I switched my air compressor to a "Fantik" version that has it's own battery.
Appreciate the reply! I am glad I went with antigravity battery! Looking forward to worry free starts!
 
Hello to all,
My issue is that I have to replace the battery.
After the long conversation here you all now very well experienced.
What would you recommend for me.
Regarding fitting, crank power...
Sounds like antigravity battery is the way to go. Easy install, and others have had tens of thousands of worry free starts.
I just installed mine!
 
I think the antigravity is popular and looks great but i've also heard horror stories of it leaving people stranded. Also, could potentially void the warranty. I know thats debatable but many dealers will see any electrical issue and see the lithium and say its not covered. You are entering this world, so please do your due diligence. I would stay with the OEM or the Drag specialties if it was me.
 
My OEM HD battery and the new one the dealership put in both failed in about a year. It's the same battery they use in the older model sportsters. I went to AutoZone and bought a Durolast? AGM thats been in there for over 2 years. I would have put a lithium in it if I could have bought one local. I don't ride cold and my bike sometimes sits for a month so it would be a better choice for me. As far as cost? I guess if money was a factor I would be riding a Honda.
 
I haven't had any weird codes or triangles since installing the YTX12-24L ANTIGRAVITY 720CA lithium battery over a year ago but haven't riden it much more than 5000 miles because I keep buying more performance upgrades for it trying to make it how Harley-Davidson should have 🤷🏻‍♂️
 
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