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MMG

MMG YTZ12S Z12S Lithium Ion Sealed Powersports Battery 12V, 300 CCA, No Spills, Fully Charged and Activated Ready to Use (MMG4) Motorcycle Scooter ATV Snowmobile Engine Start Battery

  • Based on 314 reviews
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Availability: Only 9 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Sep 7
Order within 1 hour and 5 minutes
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Features

  • Compact and Lightweight Design: Crafted with a compact and lightweight design, our lithium battery is a perfect fit for various powersports vehicles, including Scooters, Motorcycles, ATVs, UTVs, and Marine Applications like Boats, Jetski, and Watercrafts. It's also compatible with riding lawn mowers.
  • Powerful Cranking Performance: Our lithium battery boasts exceptional cranking power, ensuring reliable starts for a wide range of applications and vehicles.
  • Extended Battery Life: Experience longer-lasting battery life with dependable cold-cranking amps, surpassing traditional lead-acid batteries. These qualities make it an excellent choice for low-temperature environments and extended riding seasons.
  • Rapid Charging: Our lithium battery offers a quick charging experience, significantly reducing the time required to reach a full charge compared to lead-acid batteries.
  • Safety and Reliability: Equipped with a built-in charge indicator, our lithium battery guarantees constant and worry-free operation across all applications. It's also environmentally friendly, as it contains no toxic lead or acid, contributing to a cleaner environment.
  • Versatile Fitment: Our lithium battery is compatible with a wide range of battery sizes, including TX9-BS, YTX12A-BS, YTZ10S, YTZ12S, YTZ14S, TZ10S, BT12A-BS, BTZ12S, BTX12-BS, BTZ14S, BTX14, BTX14-BS, BT14B-4, BTX16-BS, BTX16-BS-1, B16A-AB, BTX20CH-BS, ETX12, ETX14, ETX14L, GYZ16H, HYB16A-AB, YTZ10S, YTX12, YTZ12S, YT12A-BS, YTX12-BS, YTX14, YTX14-BS, YTX14H, YTZ14S, YTX14H-BS, YTX16-BS, YTX16-BS-1, YTX20CH, YTX20CH-BS, and KMX14-BS.

Brand: MMG


Product Dimensions: 3.43"D x 5.94"W x 3.7"H


Number Of Cells: 4


Terminal: Button Terminal


OEM Part Number: GS-JSB-GTZ12S, Koyo-KTZ12S, Motocross-M7212A, Power-Sonic-PTZ12S, Sears-44215, Yacht-CTZ12S, Yuasa-YTZ12S, Yuasa-YTZ10S, GS-JSB-GTZ10S, Koyo-KTZ10S, Motocross-M7210A, Power-Sonic-PTZ10S, Sears-44210, Yacht-CTZ10S, Yuasa-YTZ14S, GS-JSB-GTZ14S, Koyo-KTZ14S, Motocross-M72Z14, Power-Sonic-PTZ14S, Sears-44217, Yacht-CTZ14S, Yuasa-YTZ14S cht-CTZ14S See more


Manufacturer: MMG


Manufacturer: ‎MMG


Brand: ‎MMG


Item Weight: ‎0.01 ounces


Product Dimensions: ‎6 x 4 x 5 inches


Item model number: ‎YTZ12S_LI


Batteries: ‎1 Lithium Ion batteries required.


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎MMG4


OEM Part Number: ‎GS-JSB-GTZ12S, Koyo-KTZ12S, Motocross-M7212A, Power-Sonic-PTZ12S, Sears-44215, Yacht-CTZ12S, Yuasa-YTZ12S, Yuasa-YTZ10S, GS-JSB-GTZ10S, Koyo-KTZ10S, Motocross-M7210A, Power-Sonic-PTZ10S, Sears-44210, Yacht-CTZ10S, Yuasa-YTZ14S, GS-JSB-GTZ14S, Koyo-KTZ14S, Motocross-M72Z14, Power-Sonic-PTZ14S, Sears-44217, Yacht-CTZ14S, Yuasa-YTZ14S cht-CTZ14S


Date First Available: May 29, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Light weight, longer run time, a bit pricey but in the long run we'll worth it.
Perfect for my Proto Type 371, purchased this Battery for another project, I've taken a pair of Bang&Olufsen Beoplay S-3 Bluetooth Speakers at 100 to 240 Volts at 20 watts power Consumption each and used a 300 watt true wave 110 volt power inverter to power the B&O's to make them totally portable. At $399.95 retail each, I paid a fraction of retail by finding this pair on Letgo. These B&O's sound amazing and now they are totally portable with this Battery, I'm still in the process of seeing how long they will run at 3/4 volume, I may have to purchase another one, possibly for longer play time, so far so good. I will update as soon as I see if I'll have to use two of these Batteries. So far I recommend this Battery, for the light weight and longer running time, compared to the led acid Batteries. I will definitely be back with updated review and photos of the device, my Proto type 371, once I cut the holes for the Speakers and install the custom grills, in this custom portable Bluetooth Speaker System. Yes it will be for sale once completed. ... show more
Reviewed in the United States on December 21, 2018 by Supertech Supertech

  • Four Pounds Lighter...
I bought this battery as part of my lightening project. It reduced the weight of my KLX300SM by 4 pounds, making the curb weight 288 pounds including an oversized 2.7 gallon fuel tank full of gas and a 3 pound steel rear rack. Even though the battery only weighs a pound, it's strong enough to turn over the engine easily. It works fine and I'm totally satisfied with it. ... show more
Reviewed in the United States on June 22, 2023 by whoisjohngalt whoisjohngalt

  • No issues
21 Month review. I bought this battery for my 2017 Ninja 650 (size YTZ12). It is ALOT smaller and lighter than stock and comes with stick on plastic bumpers to make it fit the stock battery tray. The battery has a charge indicator in top and works well. In the 21 months I have used it there have been zero issues. I had my motorcycle shipped from Florida to Hawaii with the battery disconnected and it fired right up after a 3 month wait. My 2015 Harley 883 with a traditional battery didnt do so well, but I was able to use this one to jump it with no issues. I will be buying more of these as my other 4 bikes batteries die out. ... show more
Reviewed in the United States on January 23, 2023 by Patrick Burke

  • Easily cranks over an Air-Cooled 1203cc V-Twin w/o hesitation.
I needed a modern and more efficient replacement for the factory AGM HD battery used in my Buell XB12S. Not only does it crank and start the motor quicker and easier than the factory battery but it’s also smaller and weighs only about 1.5lbs. It’s crazy how much better these modern batteries are. Price is also very competitive compared to other Lithium batteries on the market. ... show more
Reviewed in the United States on July 23, 2023 by Daniel

  • Good battery until it died
Used this battery in my motorcycle from end April until September. Went to charge it and it's dead, won't take a charge via a lith ion battery 12v charger and won't test. I emailed the company since it's been less than a year since purchase, no response. Leaving a one star review hoping they reach out to me to talk about manufacturers warranty. ... show more
Reviewed in the United States on October 21, 2023 by Philip W.

  • Extremely Surprising Product
I've been using this battery for two months now and am still amazed by it every day. When the box came in the mail I thought it was empty, it was that light! I figured this joke in the box would NEVER start my bike. Not only did it start it, it's the fastest I've ever heard the starter spin. It still starts the bike every day, rain or shine. Waiting to see what it will do in cold weather (like it gets really cold in Florida, LOL). I will post more updates in the future but right now this battery was definitely worth the price. 8/1/2017...WOW!! Four years and still going strong. No problems at all. ... show more
Reviewed in the United States on September 25, 2013 by Greentre

  • One of the two works great
I purchased 2 of these batteries. One of them went bad. First time using it, the other one is still going strong. It's a good thing I bought the warranty. Did not replace it with another purchase the GSM battery. To replace the one that went bad.
Reviewed in the United States on July 20, 2025 by dennis klein

  • Not as good as agm in the cold
Bought it for a snowmobile. Crazy light weight. Doesn't turn over the motor as well as a agm battery. I have to turn it over for a bit, wait a minute for the battery to warm up and then it turns over a tad faster. I do like how light it is
Reviewed in the United States on January 18, 2022 by A.Sat

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