Rated 5.00 out of 5 based on 22 customer ratings
(22 customer reviews)

$39.99

ML18-12XRP – 12 Volt 18 AH, Internal Thread (INT) Terminal, Reverse Polarity, Rechargeable SLA AGM Battery

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1 Pack $39.99
2 Pack $79.99
4 Pack $159.99
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

22 reviews for ML18-12XRP – 12 Volt 18 AH, Internal Thread (INT) Terminal, Reverse Polarity, Rechargeable SLA AGM Battery

  1. Rated 5 out of 5

    C D (verified owner)

    I’ve been buying all my gels from Mighty Max for years now. They perform perfectly over a more than adequate service life, come with a very fair warranty, and the company is very motivated to honor it.

  2. Rated 5 out of 5

    Jeffery (verified owner)

    Was a perfect fit and works very well in my generator. Quick shipping, good price and customer service is unbeatable. A number 1.

  3. Rated 5 out of 5

    Anthony (verified owner)

    Fast shipping, fits perfect as a Generac replacement.

  4. Rated 5 out of 5

    Douglas T. (verified owner)

    Battery was exactly what I needed and was delivered quickly. Thank you Mighty Max!

  5. Rated 5 out of 5

    Jim (verified owner)

    Good price. Great shipping. Arrived when it was scheduled. Charged up and works great.

  6. Rated 5 out of 5

    Thomas Izbicki (verified owner)

    It came quickly and so far, works well.

  7. Rated 5 out of 5

    Anonymous (verified owner)

    Delivered on time. A perfect fit for my Generac generator.

  8. Rated 5 out of 5

    Michael Diamond

    This fit my Briggs & Stratton Elite series generator perfectly.

  9. Rated 5 out of 5

    Rob Beam

    Perfect match. Easy installation.

  10. Rated 5 out of 5

    Anthony

    I can’t speak to longevity because I just got it, but arrived within a couple of days, fit perfectly into my Troy-built XP 700W generator, and fired right up. Seems to have the same cranking power as my original OEM. Great value for the $; unless of course it dies within a year or two. NOTE! When ordering, pay close attention to the orientation of your POS & NEG terminals. It’s not hard to mess up, order the wrong one and your cables will not reach. This reverse polarity has the POS on the LEFT. Worked perfectly for my machine.

  11. Rated 5 out of 5

    Kindle Customer

    Great item.

  12. Rated 5 out of 5

    Jack D

    Perfect replacement for a 10 year old generator. Fit exactly where the old battery was.

  13. Rated 5 out of 5

    Web Customer

    For my portable generator I like that the battery fit as it should it made the installation very easy

  14. Rated 5 out of 5

    Customer

    For my portable generator I like that the battery fit as it should it made the installation very easy

  15. Rated 5 out of 5

    SunshineAC

    Just as needed. Came with needed fasteners.

  16. Rated 5 out of 5

    Larry M.

    After 4 years the battery in my Troy-Bilt generator finally died. I found this battery on and it fit just the same as the OEM battery. The only issue I had was not the fault of the battery, but of the installation of the battery. I had several scraped knuckles before I got it installed. After the installation was complete it started on first push of the starter button. 2 thumbs up for this battery!

  17. Rated 5 out of 5

    Bill S

    Only had it for a month so far it’s fine

  18. Rated 5 out of 5

    frog

    Works great for my generator

  19. Rated 5 out of 5

    88gtman

    Item as described! Bought for our generator. Hooked it up and it cranked generator with no problem.

  20. Rated 5 out of 5

    88gtman

    Item as described! Bought for our generator. Hooked it up and it cranked generator with no problem.

  21. Rated 5 out of 5

    Joey

    Excellent Battery, running a 10000 Watts generator, no problem.

  22. Rated 5 out of 5

    Joey

    Excellent Battery, running a 10000 Watts generator, no problem.

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Excellent
Mighty Max Battery
Based on 4374 reviews
Muy buena se ve excelente
We needed a replacement battery for our Game Day Speaker. I chose a Mighty Max 12V2.9Ah battery from Amazon. Ordered and had it here in 2 days. The battery arrived in perfect package and fully charged. We installed it in our speaker and are now ready to use again. Super Great Price! Will definitely use this company again!
Ordered a bundle of Mightymax ML5-12 to replace batteries in my 2200 va kvm. They fit well though the terminals were smaller than the batteries I'm replacing. Test worked fine and I'm satisfied. Thanks MightyMax!
Pleasantly surprised, battery arrived fully charged. Made it for a quick install!
Great experience with Mighty Max Battery. I use the ML35-12 Gel model for my MightyMule electric gate, and it’s a perfect fit. The shipping was fast—arriving a few days early—and the packaging was solid, with high-density cardboard and styrofoam protection.

The battery arrived fully charged at 13.06V and provides reliable cranking power even after the gate has been sitting. I also appreciated that the terminal hardware was included and securely attached. High value and great performance; I'd definitely buy from them again.
Quality product at a great price and received promptly!
Arrived next day, can’t wait to install this on my SSR Bison 200p. I have had so many issues with the 12v atv batteries.
Hope the battery works as good as it looks
Great deal on two of these batteries. Packaged extremely well. Put one on my generator and it started right up.
Works great installed easy and come pre charge.