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 5026 reviews
Arrived on time, works like a charm! I registered the car purchase to claim the warranty! Here’s a pic of the neuron cordless electric mower I bought the two 12 volt mighty batteries for! The orange case was easy to open, used 3d from smallest Allen wrench in my kit to open in order to swap out the 2 old batteries inside the case with MIGHTY BATTERIES! Then gently remove the chip in the center freely slides off then slide the old batteries out 2”inches to remove the u shoes tube in the center just pulls off., after that the batteries are free to remove from case, the rest is simple Just a reminder to remove the plastic protectors on the posts of the new batteries and don’t let the the chip you slip out touch the posts. Easy for a lady with a tiny correct size Allen wrench. Just borrow one and do this yourself.

Next I’ll add a solar panel so the sunny days will charge my mower.
I ordered my Mighty Max battery from The Home Depot and opted for free delivery. The battery arrived a few days later and was very securely double boxed. I installed the Mighty Max battery into my Cub Cadet zero turn lawn mower with minimal difficulty. The terminal leads connected with ease. The only concern (not really) is the mowers original battery hold down is too small for the Mighty Max, so I opted to omit it. The battery fits perfectly in the tray and as long as I don't do any barn storming jumps, it'll be fine. The mower started right up and I am confident the Mighty Max battery has more than enough cold cranking amps to last for a long time.
Arrived on time and exactly what I wanted. Packaged well. Still have to put in the trailer I ordered it for, but as of now would purchase again. Used battery tester, everything checked out good!
The price of battery is good. I use it in my alarm system, it just plug in effect is good. I recommended to buy next time.
Good battery
These mitymax batteries made my scooter really ride a long time on my cruise
This battery works great and looks like it will last a long time
My son surprised me, by ordering the battery without my knowledge!
He knew that didn’t have the $ at that time, to purchase myself!
Installed battery and let my battery tender top off the charge, just took couple of minutes, and zero turn fired right up!
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