Antigravity AT7B Performance Lithium Motorcycle Powersport Battery with Built-In Jump Starting, 12V 3.5Ah Ducati, Replaces YT7B

Good battery but once the charge goes totally out it may not be able to be revived even with the restart feature. Careful not to let the battery drain all the way

The Antigravity battery exceeded my expectations! Lightweight, powerful, and reliable—perfect for quick starts and long-lasting performance. It’s a game-changer for my 06 YFZ450. Highly recommend for anyone needing a top-quality battery upgrade!

Does not have good shelf life for a lithium battery.I purchased one 3 years ago. I did not install it, I kept it in the bottom of my toolbox for a spare.I took it out of the box and removed 2 rubber caps, and it only had 2.05 vdc left in it.Ironically, I have a Lead-Acid battery that was purchased at the same time, and I checked it. 12.21 vdc. Less internal discharge than the Antigravity lithium battery.I run lithium batteries in 4 of my motorcycles, and none have an issue with internal discharge.Update: This company uses 4 generic LiFePO4 pouch cells. And they probably do not test them before shipping. I disassembled (DO NOT DO THIS AT HOME) it, and the pouches measured 3.6v, 3.4v, 3.4v and... 0 volts. One pouch wasn't constructed or connected correctly. I should have tested voltage the day I bought it. It was never a good battery.

Absolutely love it. Perfect fit in my 2015 DRZ400. Switched from a Shorai that lasted 8 years, it was smaller and heavier than this Antigravity. Plus, no spacers needed with this new one! More weight savings! I’m hooked. Fantastic product!

I installed this in my Ducati 2020 Streetfighter V4 when the OEM battery died. I was skeptical at first - the battery weighs nothing and I was thinking "how the hell is this going to turn over that big high compression V4?". My concerns were unwarranted - the bike started right up and has been working flawlessly for several months now with no top up charging required between rides - winter time here in NC so not many opportunities to ride at the moment. It's expensive for sure but it's amazingly lightweight, a perfect fit and does it's job well.

I have one in every bike I own, from classic to modern, it’s the best, most reliable lithium option. You are paying for what you get. Do yourself a favor and ditch that nasty stock acid battery and upgrade to a reliable Lithium

This was a replacement for a 50 hp DRZ400 with high compression 94mm piston and high lift cams. The cams I’m running have no decompression mechanism to aid starting. A pb 7ah battery wouldn’t turn it over. This lithium battery does. A few turns cold and less than 2 to get going warmed up. To the reviews with comments that it’s dead, did you try the restart button? This battery will act dead and not accept a charge if it gets low and you don’t activate restart feature.I got 3 years out of the first one and about time to replace. On a stock drz the cheap pb batteries are fine, but the weight reduction alone up high on the subframe is worth the price difference to me.

The Good: It's a great idea (also, fitment was 100% perfect)The Bad: This battery just doesn't work. The battery arrived dead. Given that the company claims "low self-discharge" seem this should not be the case.Not checking the voltage, I just installed it into my Yamaha TTR250 (which fit perfectly). I did have the issue noted by other reviews that the connection bolt is a larger diameter and I had to drill-out the ring connector.After the battery was installed I hit the starter button on the bike. Nothing. So I pressed the 'restart' button. Still nothing. It was a this point I figured I would need a volt meter, and my charger. When I looked at the voltage across the terminals it was way under voltage (see image).So, I hooked it up to my NOCO Genius 10 battery charger (by the way, NOCO makes super awesome chargers!). I messed around with the charger and battery (pressing the re-start button) for some time trying to get the charger to "see" the battery and then finally was able to set the charger to "Lithium Mode". So I let the battery charge.After disconnecting the charger, and re-installing the battery, I still could not start the bike. Battery seemed dead. I was able to get the headlight to turn on and off momentarily, but there was not enough juice to crank the engine. I checked the voltage on the battery only to find it around 8.7v!I've simplified this review a ton. I did end up spending a couple hours trying various combinations of installing, un-installing, pressing the 'restart button' and attempting to charge the battery. All to no avail.I would not recommend this battery. You are going to have 100% more reliability from a standard AGM sport battery.Update: Still no response from Antigravity.I ended up going with: Yuasa YT7B-BS AGM Battery