KEMIMOTO Lithium Motorcycle Battery YTX9-BS/YTX7A-BS, LiFePO4 12v Lithium Battery 4Ah, Pre-Charged Powersports Battery, with 3 Universal-Fit EVA Spacers, Compatible with Motorcycle ATV UTV Jet Ski

I've had this battery in my bike since January and it's had no issues. Sitting for over a month, it held its charge no problem. The only thing to be aware of is that the battery terminals take an M5 screw instead of the usual M6 on the stock battery. I didn't receive screws with the battery, or they were lost in the packaging, and due to the size difference I couldn't re-use the screws from the old battery. I bought M5s at the hardware store to make it work, but I would have wanted to know about this difference before buying it, so here's this review for you.

I bought the 4ah for my Harley Night Train (FXSTBI). The battery is 1/2 the size of my old lead acid battery and 1/10th the weight. Yes, 1/10th! And with 320 CCA, it cranks up my Harley like a champ. No problem. They include plenty of spacers, in the box, to fill in the space left in my battery box, with a new battery 1/2 the size of the old one. The "charge" indicator is a nice feature. They say lithium is "expensive" but, this batter cost 1/2 the price of the lead acid battery I bought 5 years ago (or so). I'm thrilled with this battery. It's newly installed so, we'll see how long it lasts.

Great resistance to temperature fluctuations. Much lighter then the standard. Motorcycle is much easier to handle with less weight under the tank!

Bought to replace lead acid battery in my 2014 Can Am Commander. Worked great for a few months, just starting the engine and running the electronics. As soon as I tried to operate my 12 volt, factory-installed, 4,000 lb winch, the battery failed. It did not have enough amperage to run the solenoid, even with the engine running. When I replaced it with a lead acid battery, everything worked properly again.

Caused Electrical Issues on my 2024 KTM 1290 Super Adventure R. I think its voltage was to high for the bikes liking and it triggered the fuel pump to shut off and throw an alarm. I dont think its a bad battery and offering but KTM has issues with lithium across the board. Lessons learned. Sticking with stock

Saw some of the negative reviews for this item. Not sure where they are coming from. They must not know how to install it correctly. When I went to fire up my bike after sitting several months plugged into a battery misery my old leaded battery would not turn over my Harley. It showed a charge of 13.2 amps and to be good. The indicator on the battery showed a flickering light at 90% so it was probably about 80% charged. I installed the new Kemi Moto and the bike cranked over and started immediately. I cant believe how small and lightweight the unit is. The included spacers make it easy to raise height and fill in the voids left with the smaller frame size. There are also terminals connections on both sides on the top to hook up the positive and negative easily. Also screw connections on multiple side of each terminal clock for easy hookup. I put the battery minder on it and it was charged to 100% in about 10 minutes. Great product - No complaints. As mentioned, not sure where the negative comments are coming from.

A very strong light battery

So far so good. Had for about 2 months with no issues.