Rated 4.90 out of 5 based on 30 customer ratings
(30 customer reviews)

$39.99

ML18-12 – 12V 18AH UPS Battery Replaces 17Ah MK Battery ES17-12, ES 17-12

SKU: ML18-1221140 Category:
Thumbnail Short Description Price Add to Cart Button
$ 39.99
$ 79.99
$ 159.99
Delivering power when you need it, the Mighty Max ML18-12 12 Volt 18 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 ML18-12 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: 18 AH
Chemistry: SLA, AGM
Terminal: Nut and Bolt (NB)
Battery Dimensions:
7.12 in x 3.00 in x 6.50 in
Weight: 11.90 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack

Volts

12V

Amp Hour

18Ah

Chemistry

SLA / AGM

Terminal

Nut and Bolt

Quantity

1

Length

7.12

Width

3.00

Height

6.50

Weight

11.90 Lbs

Warranty

1 Year

30 reviews for ML18-12 – 12V 18AH UPS Battery Replaces 17Ah MK Battery ES17-12, ES 17-12

  1. Rated 5 out of 5

    JPE

    Purchased a DR field a brush hog (used). The battery on it wasn’t holding a charge and the battery direct from DR was about $100 plus shipping. Purchased this instead, fit right into the original battery retainer bracket on the brush hog, started right up. Very pleased with the battery, plan to maintain it with a float charger to make sure it lasts a good while.

  2. Rated 5 out of 5

    Gary Cannon

    it was a perfect match to the Sealake FM1217OD battery that went bad in my Harbor freight Portable Automobile Jump starter.

  3. Rated 5 out of 5

    S. Tello

    Forgot to keep the trickle charger on my old generator so the battery died. This was the perfect replacement fit for my Briggs & Stratton 8500 power generator. Very easy install – I did need to charge before using. Can’t comment on longevity as I’ve only had it for 2 months.

  4. Rated 5 out of 5

    George J. Kreiner

    I’m really happy with this battery as a replacement battery for my DR Mower. Especially since DR want 3 times the price for a replacement. I always keep my batteries on a slow charge to increase longevity, so I expect this to last just fine, but time will tell!

  5. Rated 5 out of 5

    J. N. Denenberg

    The battery in my 8 kw Generator would not start the generator after 5 years of standby use. This Mighty Max ML18-12 was a direct fit and now I won’t have to pull start the 15 HP motor for a few more years.

  6. Rated 5 out of 5

    Adolfo

    Battery was for a portable car jumper, air pump, USB charge connection and light

  7. Rated 5 out of 5

    J Dominguez

    Bought this for my car emergency car battery jumper and compressor. It came charged. I was up and running in no time. Check dimensions and connection terminal type before you order.

  8. Rated 5 out of 5

    Charles D. McCarthy

    Champion Home Generator battery replacement. Machine fired right up.

  9. Rated 5 out of 5

    Juan Garcia

    Easy replacement on my car jumó starter. After 8 years my old battery gave out instead of replacing the jumper with another modern one well over 300$ an easy fix worth the price and looking for another 8 years of use.

  10. Rated 5 out of 5

    Web Customer

    The battery works just fine and was received in good shape.

  11. Rated 5 out of 5

    Customer

    The battery works just fine and was received in good shape.

  12. Rated 5 out of 5

    Eagle7

    Great fit, great price, I installed them into an electric wheel chair then fully charged them. They work great. What more can I say.

  13. Rated 3 out of 5

    Victwisted

    Work like it should hook it up started my generator right up thank you

  14. Rated 5 out of 5

    Me

    Works as advertised

  15. Rated 5 out of 5

    Danny Lanham

    Great price. Exactly what I needed. Fast delivery

  16. Rated 5 out of 5

    BN

    Great price and very fast shipping for a heavy item Bought 8 for the price of 2 if I had shopped locally

  17. Rated 5 out of 5

    BN

    Great price and very fast shipping for a heavy item Bought 8 for the price of 2 if I had shopped locally

  18. Rated 5 out of 5

    Franklin G.

    It works

  19. Rated 5 out of 5

    Dennis Jenkins

    Product came as ordered and works well. I?ll but again

  20. Rated 5 out of 5

    Mark a rodney

    It does what its supposed to do.

  21. Rated 5 out of 5

    Kindle Customer

    Just ordered this as a replacement for my DR grader. The original lasted five years, if this lasts as long it’s a heck-of-a-deal.

  22. Rated 5 out of 5

    PJense

    works great keeps a good charge at a good price

  23. Rated 5 out of 5

    Web Customer

    Battery was as advertized and fit perfectly into my DR Field & Brush Mower.

  24. Rated 5 out of 5

    Customer

    Battery was as advertized and fit perfectly into my DR Field & Brush Mower.

  25. Rated 4 out of 5

    John Maverick

    As described.

  26. Rated 5 out of 5

    T. Matt

    I purchased this battery for a DR mower. It was just what I needed, and at half the price.

  27. Rated 5 out of 5

    Rtodd

    Exactly what I was looking for and it worked

  28. Rated 5 out of 5

    tntjm14

    Purchased as a battery replacement for my DR All-Terrain brush mower. Fits perfectly, and so far, works great.

  29. Rated 5 out of 5

    tntjm

    Purchased as a battery replacement for my DR All-Terrain brush mower. Fits perfectly, and so far, works great.

  30. Rated 5 out of 5

    ChuckW

    Just as advertised. Solid performance at a great price. I needed it to replace the battery in my DR Field Brush Mower. The OEM part was double the cost for the same battery with their name on it.

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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