Rated 4.91 out of 5 based on 23 customer ratings
(23 customer reviews)

12V 18AH SLA Replacement Battery for Troy-Bilt 8000 Watt Generator

This product is currently out of stock and unavailable.

SKU: ML18-12XRP5 Category:
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Delivering power when you need it, the Mighty Max ML18-12XRP 12 Volt 18 AH with Reverse Polarity 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 ML18-12XRP 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: 18 AH
Chemistry: SLA, AGM
Terminal: Internal Thread
Battery Dimensions:
7.13 in x 3.01 in x 6.57 in
Weight: 11.90 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack

Terminal

Internal Thread

Volts

12V

Height

6.57

Length

7.13

Chemistry

SLA / AGM

Amp Hour

18Ah

Quantity

1

Warranty

1 Year

Width

3.01

Weight

11.90 Lbs

23 reviews for 12V 18AH SLA Replacement Battery for Troy-Bilt 8000 Watt Generator

  1. Rated 5 out of 5

    D. Smethers

    Perfect fit, fast shipping, lets just hope it keeps a charge

  2. Rated 5 out of 5

    Nebster

    As as described and prompt service

  3. Rated 5 out of 5

    Kevin Fitzgerald

    Fit and worked great. Came fully charged.

  4. Rated 5 out of 5

    Chris Nielsen

    Battery GREAT and fit and performance.

  5. Rated 5 out of 5

    Wayne B. Johnston

    I picked up a great generator for a song and a dance. It needed a battery. So, I checked on for the generator type and found a match. It was a perfect fit and charged on arrival. Inserted the battery, connected it and it cranked and started the generator right up.

  6. Rated 5 out of 5

    Dwight A. Knox

    great thanks

  7. Rated 4 out of 5

    John Burnett

    Product was an exact replacement

  8. Rated 5 out of 5

    Web Customer

    Fit my Troy bilt generator perfectly and was an easy install.

  9. Rated 5 out of 5

    Customer

    Fit my Troy bilt generator perfectly and was an easy install.

  10. Rated 5 out of 5

    Rich

    Excellent battery replacement. Price was good and service was quick.

  11. Rated 5 out of 5

    Rich

    Excellent battery replacement. Price was good and service was quick.

  12. Rated 5 out of 5

    Nonrev902

    My Troybilt 8000-watt generator fired right up when I installed the battery. Fit great as well. No problems.

  13. Rated 5 out of 5

    George F. Sterr

    As described. Still working.

  14. Rated 5 out of 5

    Charles Napper

    This battery was a replacement in my Troy built Generator, and It cranks every time I hit the start button. So far so good; lots of power.

  15. Rated 5 out of 5

    joseph smith

    Received well packaged and on time. Fit as described and is working great. I would purchase this item again.

  16. Rated 5 out of 5

    Sarah’s Dad

    Fits great. Working like you would want.

  17. Rated 5 out of 5

    formdude

    Ordered this four days before hurricane Florence after I discovered I had a dead battery on my Troy Bilt 8000 watt generator. Stated best delivery on the website was over a week so I resigned myself to hand cranking it to start (better than nothing!). Two days later I was thrilled to receive the battery! Installed it, it fit exactly like the original, and started on the first try. Thanks for the great service!!

  18. Rated 5 out of 5

    Rapid Rick

    Generator starts, I’m happy.

  19. Rated 5 out of 5

    GUY CAYTON

    used on my generator, works as stated.

  20. Rated 5 out of 5

    cheryl

    Quick delivery, works great. Thanks.

  21. Rated 5 out of 5

    !

    Fit perfect and worked just as good as the original!

  22. Rated 5 out of 5

    frank h guttery

    Great product!!! Great price!!! Perfect fit!!! Thanks!!!

  23. Rated 4 out of 5

    Andrew Goritski

    Did the job

Only logged in customers who have purchased this product may leave a review.

Excellent
Mighty Max Battery
Based on 3474 reviews
Arrived quickly. Even got a sticker with it.
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Item as described and perfect fit and arrived on time
Battery arrived in a good shape package strait to my door steps
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
New battery. Ready for cold weather!
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good