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The Mighty Max YB9A-A is a 12V, 9AH sealed lead-acid AGM battery delivering 130 Cold Cranking Amps. Designed for motorcycles, ATVs, and outdoor power equipment, it offers maintenance-free, spill-proof reliability with superior vibration resistance and a compact universal fit. Ready to install out of the box and backed by a one-year warranty, it’s engineered to keep your projects and rides powered through all seasons.





| ASIN | B07BLM12Z4 |
| Automotive Fit Type | Universal Fit |
| Battery Capacity | 9 Amp Hours |
| Battery Type | Lead Acid |
| Best Sellers Rank | #1,945 in Automotive ( See Top 100 in Automotive ) #11 in Powersports Batteries |
| Brand Name | Mighty Max Battery |
| Compatible with Vehicle Type | Scooter |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,716) |
| Included Components | Battery |
| Item Dimensions D x W x H | 5.3"D x 3"W x 5.25"H |
| Item Weight | 6 Pounds |
| Manufacturer | Mighty Max Battery |
| Manufacturer Part Number | YB9A-A |
| Manufacturer Warranty Description | 1 Year Manufacturer |
| Model Number | YB9A-A |
| Size | Standard |
| Terminal | Bolt Terminal |
| UPC | 759478118334 850005902522 |
| Unit Count | 1 Count |
| Voltage | 12 Volts |
M**R
step 1 in getting my ptroject moving again
After a long break, I needed a new battery to get my bike project moving forward again. Bought this Mighty Max battery and was glad to see it was nearly 13V right from the box. Fit was good in the bike, and b/c the carbs were all empty it took a while to get it turned over, but the battery never gave up. I cranked on it off and on for a while and it never got too low. Always rebounded great from key on to key off. Finally the gas got moving and it turned right over. Idled for a while, and now I have plastic to put on. Do like me: overcome your laziness and get things ready to ride again. Getting a new battery really got this project to the finish line and got me in the mood to get riding again!
L**A
Reliable motorcycle battery with strong starting power and maintenance-free design.
I installed this Mighty Max YB14L-A2 battery on my motorcycle and it started right up. The build feels solid, holds charge well, and the maintenance-free design is convenient. After several rides, it’s been reliable and consistent with strong starting power every single time.
T**C
Perfect fit for 2007 Yamaha VX Waverunner
Bought this battery for a 2007 Yamaha Waverunner. It was a good price compared to other online and local stores. Upon opening the box, I put it on a charger to be sure it was fully charged and it was. It fit in the battery housing perfectly and the PWC fired right up. No surprises and it worked perfectly.
B**E
Working Great
Great price
K**N
So far so good
Only had it a couple weeks but it does what’s it is supposed to do. Fit perfect in my generator and starts right
O**T
Fast Service, Great Product, Direct Fit
Fast delivery, Direct Fit, holds a charge over 13.45volts
A**I
Perfect fit
Worked perfect, size fit perfect
N**.
Battery great until it failed. Excellent seller support on warranty replacement.
Battery was great but after a few months it started failing. Seller support was excellent to get a replacement under the warranty.
D**S
good product. good price.
A**R
Fast shipping, OEM quality and fit. I installed it in my 2017 Polaris Sportsman 570 SP. Customer Service 5 Stars!! Thanks!!
A**R
i’ve had battery installed for over a year now and still works well. battery still holds charge and works very well. good price.
A**Z
Para una Avenger cruise 220 le quedó perfecta.
S**I
Motorcycle Battery fits my motorcycle . Works great.
Trustpilot
1 month ago
2 months ago