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⚡ Power your ride with confidence—never get left in the cold!
The Mighty Max YTX9-BS is a 12V 8AH sealed lead-acid AGM motorcycle battery delivering 135 cold cranking amps. Maintenance-free and rechargeable, it offers spill-proof durability, vibration resistance, and reliable performance across extreme temperatures. Compact and versatile, it fits most scooters and motorcycles, backed by a one-year warranty.
| ASIN | B00K5391N4 |
| Battery Cell Composition | Lead Acid |
| Battery Type | Lead Acid |
| Best Sellers Rank | #1,379 in Automotive ( See Top 100 in Automotive ) #10 in Powersports Batteries |
| Brand | Mighty Max Battery |
| Brand Name | Mighty Max Battery |
| Compatible with Vehicle Type | Scooter |
| Customer Reviews | 4.4 out of 5 stars 1,924 Reviews |
| Included Components | Battery |
| Item Dimensions D x W x H | 5.9"D x 3.38"W x 4.25"H |
| Item Type Name | 12V 8AH 135 CCA Battery |
| Manufacturer | Mighty Max Battery |
| Manufacturer Part Number | YTX9-BS98 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Number Of Cells | 6 |
| Product Dimensions | 5.9"D x 3.38"W x 4.25"H |
| Resistance | 144 Ohms |
| Size | 1 Pack |
| Terminal | Bolt Terminal |
| UPC | 850005902041 082045853384 |
| Vehicle Service Type | Scooter |
| Voltage | 12 Volts |
D**G
Performs just as good as Yuasa
Got this for my 2009 Street Triple, performs amazing right out of the box. No acids to mix, no charging, comes charged full. Great cranking power, no issues at all. Will update in a couple months.
S**Y
Good for throwing clays
I use this for a Champion Workhorse clay thrower without the wobbler. It came charged, but I put it on my charger anyways, and it turned off almost immediately. I have no clue how many clays it will throw, but me and my brother threw at least 100 clays, and when I got home and put it on my charger, it was fully charged in about 1 minute. I probably could have gotten an even smaller battery, and been just fine.
$**$
Perfect size & perfect power!
Good lil battery! This is exactly the type I needed for my Honda shadow. Super easy install. Charges in no time at all and has the perfect amount of power nessecary for all components and assesories. I have extra lights, phone charger and speakers and this runs them all! It also fits like a glove! Great product and great price!
K**G
Very Capable Battery
Fit on my Harbor Freight Predator 8500 generator and wired up in minutes. The only slight drawback is that this battery is about an inch shorter so the battery holddowns are a bit more trouble to tighten. It still moves around a little bit but added a couple zip-ties to keep it in place. So far so good, fires right up on the electric start and has stayed charged but it's only been a few months. Would buy this again!
C**D
Excellent value!
Worked perfectly for my lawn tractor at a great price!
C**H
Great battery
Works as it should. Probably cranked quad for 5 minutes so keeps charge, good agm battery.
C**O
Check the Cells for acid before use.
Bought 3 of these now. First one lasted nearly two years. Second one did not start generator even after a charge. Discovered these are NOT SLA batteries and either leak or some ship with no battery acid. Third battery I opened up, (cover and rubber seals off), tipped upside down and shake ...... no acid (or it has been on a shelf in some store for a while). When filled with acid (approx 40ml per cell) these batteries work really well, plus they are well made. For info only.
T**Y
Husqvarna 400 battery
Install January 2026. I had my misgivings, who wouldn’t? A $30 battery off Amazon I didn’t expect much, I installed in a Husqvarna 400 motorcycle and it fired up right away. So far I’m surprised and happy. Perfect fit, battery came charged, a clean and easy 1 for 1 install.
Trustpilot
1 week ago
3 weeks ago