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 added a BY speaker and cell phone holder/charger. These drew too much electrical power and my bike wouldn’t start. I installed one of these batteries and the bike starts right up—even better than the old battery without the additional electrical requirements. I would highly recommend purchasing this battery. It IS exceptionally light in weight but packs a powerful charge!

Fits my z900rs. Ok to start the first time I ordered this it got lost. Amazon was able to step in and send me another. When I bought the battery it was on sale and they sent me the new one for the same price and it came the next day so I'm very happy about that. The battery itself works great my Yuasa battery weighed in at 6.8lbs and the kemimoto 2.2 lbs pretty sweet. Cranks way faster. I'm happy with it.

Great value! Extremely light weight. Maybe a 1/3 of a conventional battery. Used on lawn mower, no issues and cranks better than a standard. Regarding price.. way better than a 90$ store powersports battery!

Does not fit my motorcycle as it’s too wide.So if you have a Yamaha FJR1300, don’t waste your time.

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.

Works great! Hooked into my 2021 Husqvarna Svartpilen 401 without much issue! One spacer on the bottom of the battery was all it took. It would have been nice to have extra screws, I dropped one into the bike and it became an hour long battery swap!

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.

Excellent battery.Feels so small and light to have so much power. Spins the 1300cc motor right up. Great design in the connectors as well. High quality and workmanship.