ML9-12NB -12 Volt 9 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML9-12NB -12 Volt 9 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML9-12NB -12 Volt 9 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML9-12NB -12 Volt 9 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
ML9-12NB -12 Volt 9 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery
Rated 4.86 out of 5 based on 7 customer ratings
(7 customer reviews)

$28.99

12V 9AH Battery Replacement for Generac XG8000 Portable Generators

Availability: In stock

SKU: ML9-12NB15 Category:
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
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

7 reviews for 12V 9AH Battery Replacement for Generac XG8000 Portable Generators

  1. Rated 5 out of 5

    Martin Murdoch (verified owner) –

    Did exactly what it was supposed to do. Switched battery, charged overnight and generator that had not run for a year fired up like a charm. Thanks.

  2. Rated 5 out of 5

    Wing G. Chung –

    The Battery is an exact replacement for what fits into a portable air pump and jump started pac. The only thing I can point out is the terminals are facing 90 degrees from the original battery in my jump starter. I had knew the cables to the new battery would be no problem. So be aware of ter battery terminal positions.

  3. Rated 5 out of 5

    Skybird –

    Works great for my GenerAC

  4. Rated 5 out of 5

    Al Lopez –

    Easy to install, powerful unit.

  5. Rated 5 out of 5

    William Sparks –

    Worked great had no problems

  6. Rated 5 out of 5

    RAUL L. –

    I HAVE AN ` STANLEY FAXMAX 350 AMPS ` THE BATTERY WENT BAD MONTHS AGO, FINALY I TOOK OLMOS 2 HRSTO OPEN AND REMOVED THE BATTERY AND ORDER FROM , BATTERY CAME PUT IT BACK AND!!!! EURICA MYCHARGER IS WORKING GREAT, THANK YOU TO THE Mighty Max Battery 12V 9AH Battery FROM

  7. Rated 4 out of 5

    Bob Cox –

    Seems good

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Excellent
Mighty Max Battery
Based on 4143 reviews
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allan levitt
Arrived in perfect condition
Lalo
2011 Yamaha Raptor 700R battery, started right up. Has a 1 year warranty. Great deal.
Zach Mankowski
Love mighty max batteries
Roger Smith
Arrived well packaged. No information as to original warranty coverage and term, but lots of solicitations to extend the warranty coverage for a whole amazing 90 days - Wow, such product confidence! At least it’s not made in China, but is Thailand any better for quality manufacturing? We’ll see.
AK B
Ktm duke 390
Kerry-Ann McNeil-Harris
Arrived next day and sas very easy to install. They also offer free 3 warrany extension.
Anne Marie Forbes
I ordered this MightyMax battery through Amazon. The Ad states it works in my GE Simon XT house alarm.
Susan Blankenship
I received my battery from Amazon on March 9, 2026. The box was a little squashed but the battery was packaged well and it it fine. I installed it and finally my gate opener is working properly. I purchased 2 batteries before this and had to return them because they were the wrong battery. This one is working great.
Eric Allen
Looks the part, I am charging it fully before install on my jet ski.
Allan Cain
These batteries arrived in great shape with the handle on top so you can carry it screw so you can hook them up very professional looking better about them from Home Depot

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