








🔋 Power your ride, own the road — no excuses, just go!
The Mighty Max YB9A-A is a 12V, 9AH sealed lead-acid AGM battery delivering 130 Cold Cranking Amps for reliable starts. Its maintenance-free, spill-proof design resists shocks and vibration, fits universally in motorcycles and power equipment, and comes fully charged and ready to install with a one-year warranty.





| ASIN | B07BLM12Z4 |
| Amperage | 9 Amps |
| Automotive Fit Type | Universal Fit |
| Batteries | 1 12V batteries required. |
| Best Sellers Rank | #659 in Automotive ( See Top 100 in Automotive ) #5 in Powersports Batteries |
| Brand | Mighty Max Battery |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,550) |
| Date First Available | January 1, 2010 |
| Item Weight | 6 pounds |
| Item model number | YB9A-A |
| Manufacturer | Mighty Max Battery |
| Manufacturer Part Number | YB9A-A |
| Model | YB9A-A |
| Product Dimensions | 5.3"D x 3"W x 5.25"H |
| Size | Standard |
| Terminal | Bolt Terminal |
| UPC | 759478118334 850005902522 |
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!
A**R
Perfect fit for Westinghouse 7500 Portable Gen
It works awesome, right out of the box, perfect fit in my generator, no need to even charge it, because it came fully charged, im leaving this review hoping to get an extra 3 month warranty Customer image
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.
J**T
Great Price - Fast Shipping
Great Price for a nice AGM battery. As with this battery, most don't come with much of a warranty. If you have about 30 spare minutes, you can review the warranty requirements!
N**M
Great for snowmobile.
Replacement for my snowmobile. Works great and starts right up.
A**O
Grate battery
Bought this battery for a gocart and it works just fine grate product my kids forgot to turn off the lights on the gocart and it drain the battery all down just put it to charge 12 hours and it is working grate again easy of installation Value for money longevity battery life. Will buy again if need it.
D**N
Budget?
Got it for my moped. The battery looks really good so far. The packing was great working out for me for what I need cranking amps are pretty good. I would recommend it if you’re on a tight budget like we all are careful out there.!
K**Y
Weak at 14 months
Weak at ~14 months, for the price I guess it’s not horrible, but if my bike sits for just a week it struggles to start, I was originally diagnosing the charging system before I tested the battery and it reads at weak with a tester. Going to replace it with something else in the near future before this battery leaves me stranded.
S**I
Motorcycle Battery fits my motorcycle . Works great.
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.
Y**G
Purchased 17 Aug 24 - used one month in Sea Doo. Stored indoors from Sep 24 - Mar 25 in dry basement. Now it will not fully charge. Cannot find a warranty in the description. Will purchase from Cdn Tire from now on as they have a Warranty: 1 yr exchange,
Trustpilot
2 months ago
1 month ago