Antigravity Batteries® ATX20-HD Heavy Duty Lithium Ion Battery with Dual Polarity and Battery Management System (BMS) - 900 CCA 5.18 Pounds 30Ah - AG-ATX20-HD

This battery is the best, I have a 117CU SS and this battery has no hesitation works everyday.

Is it expensive? Oh yeah it is. Does it weigh almost nothing? Yep! Light as a feather (I thought I got ripped off with a fake battery). Does it have enough power for my Honda Talon? More than enough!! Highly recommend.

Battery arrived well packaged with instructions, very easy to read and install. The price seemed high but this battery should last for quite some time.

It works ok , was going to purchase another one, no customer service to voice my opinion or speak to about options!

I purchased this battery to replace a traditional lead-acid battery firing a S&S X-Wedge V-Twin (121 CI). All I can say is wow! About 1/2 the size and three times the cold cranking amps! Old battery was 300CCA and this one is 900CCA. And a big weight savings as well. I also like the LED battery test button on the top that lets you check the charge of the battery by just pressing a button. And included in the box when it arrived were two free gifts! (1) A modular flashlight with wireless speaker and power bank and (2) A knit beanie with wireless speakers built in. If you are contemplating making the change to Lithium Ion..... do it and buy this battery. You will not be disappointed.

I have been struggling over the past 15+ years to find a battery to turn over my Harley Davidson high-compression stage 3 engine. I tried everything to boost the starting ever since I increased the compression ratio with higher cams, I had the slow start syndrome. If the temperature was below 50°F, it was darn near impossible to turn over. I tried changing the starter, new spark plug wires, new ignition coil, and the newer AGM batteries... No change in the slow starting syndrome. I was pessimistic about this battery; however, with 900 CCA, two to three time more than the batteries I had in the past, I went ahead and purchased the AntiGravity battery. OMG... is all I can say. This was my dilemma all along. Now, as soon as I push the start button, the bike cranks/starts without any hesitation... I mean instantaneously. I had the battery now for 1-year and finally decided to write a review. Well worth the money.

I had high hopes for this battery and my hard crank issue on my Bourget Fat Daddy cycle. After receiving the battery I performed a proper lithium charge with my NOCO 5 charger. I installed the battery hit the starter and nothing. After speaking with AntiGravity customer service it was deemed as new bad. So I went to print a return label from Amazon. Nope no return labels. I call AntiGravity and they gave a RMA # to return the bad battery. I shipped it back for a cost of $35. They ship me a replacement battery at a higher cost then the original battery ($10 more) and did not refund my shipping expense. Just plain unprofessional. I had reached out to my customer service rep Chad twice about this. Both times he had me send him a copy of the shipping receipt and told me he would forward it to the proper department. Well no response and no refund. BUYER BEWARE!

Ordered from Billet Proof Designs after they answered a few questions for me regarding the battery. I have a 2012 Wide Glide with a few mods, and always had issues with cranking power from stock batteries. No longer...this battery fires the bike no problem! Have only used a few times, so i can't speak about durability or holding charge, but love it so far. Billet Proof was super helpful in determining which battery i needed, would definitely recommend.

Perfect light weight replacement for an old full weight car battery.