12V 9AH SLA Battery Replacement for Generac YD9-12

(25 customer reviews)

From: $29.99

12V 9AH SLA Battery Replacement for Generac YD9-12

SKU: ML9-12NB19 Category:
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$ 29.99
$ 54.99
Delivering power when you need it, the Mighty Max ML9-12 12 Volt 9 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.
The ML9-12 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.
Mighty Max SLA batteries are utilized in a wide variety of applications including; Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and more.
Specifications: 
Voltage: 12 Volt
Amperage: 9 AH
Chemistry: SLA, AGM
Terminal: Nut and Bolt
Battery Dimensions: 
5.94 in x 2.56 in x 3.94 in
Weight: 5.17 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack

Volts

12V

Amp Hour

9Ah

Chemistry

SLA / AGM

Terminal

Nut and Bolt

Quantity

1

Length

5.94

Width

2.56

Height

3.94

Weight

5.17 Lbs

Warranty

1 Year

25 reviews for 12V 9AH SLA Battery Replacement for Generac YD9-12

  1. Kent

    I ordered a battery. I received a battery. The battery fit in the generator.

  2. Patticake

    My husband said this was a good buy.

  3. guido

    The exact replacement for the battery on my generator. Charged it up and it worked like a charm.

  4. Kip G. Dillow

    great product

  5. Kip G. Dillow

    great product

  6. irene stewart

    it was for my generator

  7. Clay breaker

    This was a starter battery for my portable generator. Perfect fit. Was delivered ahead of schedule. Was at a good price. Would defiantly reccomend. Will buy again when needed.

  8. Rick Jandura

    Works as expected

  9. Rick Jandura

    Works as expected

  10. M. T.

    So I was pleasantly surprised when Mighty Max sent me another battery on their own volition to fix my terminal problem. The NB terminals for the new battery is oriented exactly as pictured (the original battery that was sent had the terminals oriented parallel to the width of the battery and not parallel to the length of the battery as pictured). I will give it to Mighty Max, very surprised that they listened to comments here on , and made things right. I’m changing my rating to 4 stars, and will update after i install the battery.

  11. Lenwood

    This battery was an exact fit replacement for the Stanley 700. It came with new bolt& nuts for the terminals and it arrived 90% charged. An easy and inexpensive replacement.

  12. wezzz

    this was a great option for a replacement battery in my Clore Automotive Jump-N-Carry JNC300XL. it was a bear to reroute the wires and get it closed again, but that is no fault of the battery. saved me from spending $86 on a new jump pack, and saved me quite a bit over the oem replacement battery as well. thus far it has performed as well as the original battery, but im not running intense tests on it or anything. it was installed in feb 2020. if it wears out or fails, ill update this review, but so far so good!

  13. Ron B

    Bought this for a portable General generator. It fit perfectly and had plenty of power to start the generator.

  14. Jim

    Like size for my portable generator.

  15. Deborah

    Perfect fit for my jump starter. Terminals are a little short but it worked fine with the included hardware.

  16. Deborah

    Perfect fit for my jump starter. Terminals are a little short but it worked fine with the included hardware.

  17. David Alexander

    Great price and fit.

  18. Rick S

    The terminal bolt holes need to be altered in order to attach the wire ferrel.

  19. George Covert

    Battery fit perfectly. Up and running.

  20. Nancy Gorres

    battery works great but I had to modify the cable terminal ends from the generator because the terminals on the battery were sunk in too short to fit the cable ends,they should spend more time & money on mfg & quality control,maybe less on advertising. on the plus side,i was impressed with inventory&quick delivery.none of the local generac dealers stock a battery!

  21. HunterClan

    The battery came quickly. When we put it on the generator, it had a pretty good charge on it. I would buy this product again.

  22. HunterClan

    The battery came quickly. When we put it on the generator, it had a pretty good charge on it.I would buy this product again.

  23. id4

    fully charged when received.

  24. Sergei Pepper

    Is doing great he did better than the original battery that came with my booster pack the booster original battery lasted a month that was it

  25. Adran T. Hanson

    Looked locally and all I found were batteries set up for slid on clips. I needed bolt on. This was perfect. Generator fired right up.

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Mighty Max Battery
Excellent
4.8
Based on 452 reviews
Mighty max brings the battery backup back.
Arrived well packed in unopened sturdy box. Was replacement for identical Mighty Max battery I ordered 2 years ago. Taking 1 star off because didn’t include the needed terminal clips - was able to use the old battery’s clips
Same model fits in each of our four wheelers great product
Replacement for my Murray MT100 riding lawnmower. Murray does not make replacement batteries and you are on your own if the battery goes bad. Bought Murray MT100 in 2023, battery went bad in 1 year and all other Murray replacement batteries are LARGER so it won't fit.This Mighty Max Battery fit the MT100 fine and it starts it perfectly too.
Direct replacement for generac portable electric start generator. Works great.
Received really quick. Boxed well and fit great. Worked like a charm! I would definitely recommend this battery.
As an athletic trainer I rely on our water units every day to provide the water to our athletes. We have over 900 student athletes enrolled, and these units get used daily, so it is imperative these batteries are reliable. On a side note, I also use these batteries on my fishing kayak to power my fish finder. I can use my fish finder for about 20 hours before it turns off. These batteries are great! Highly recommend. I have not had any issues so I haven't spoken to customer service yet, but if they are as good as these batteries have been, I think I am in good hands.
Needed a replacement battery and the manufacturer wanted $50 whereas you only required $20. Made it worth it!
satisfy with price and easy installation.
Arrived in great condition comes with the bolts to attach the wire over all very satisfied
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