Rated 4.88 out of 5 based on 26 customer ratings
(26 customer reviews)

$17.99

ML5-12 – 12V 5AH Replacement Battery for NP4-12 NP5-12 NPH5-12 NPX-25

SKU: ML5-12306 Category:
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$17.99
$28.99
$39.99
$52.99
$74.99
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$139.99
Delivering power when you need it, the Mighty Max ML5-12 12 Volt 5 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 ML5-12 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: 5 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions: 
3.58 in x 2.76 in x 4.21 in
Weight: 3.09 Lbs
Warranty 1 Year
Multi Packs Bundled Savings

12 Pack, 1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack, 9 Pack

Volts

12V

Amp Hour

5Ah

Chemistry

SLA / AGM

Quantity

1

Length

3.58

Width

2.76

Height

4.21

Weight

3.09 Lbs

Warranty

1 Year

26 reviews for ML5-12 – 12V 5AH Replacement Battery for NP4-12 NP5-12 NPH5-12 NPX-25

  1. Rated 5 out of 5

    E R.

    Good replacement for APC UPS ES500.

  2. Rated 5 out of 5

    Rick Ballo

    Seems to work fine, direct replacement

  3. Rated 5 out of 5

    April S.

    Like this battery. Well worth the money.

  4. Rated 5 out of 5

    Jose A Dominguez

    Lawnmoe

  5. Rated 5 out of 5

    Gar Rac01

    Works perfectly as a direct replacement.

  6. Rated 5 out of 5

    Dan Mueller

    Came with full charge. Started mower right up.

  7. Rated 5 out of 5

    Dan Mueller

    Came with full charge. Started mower right up.

  8. Rated 5 out of 5

    Gary Towers

    This is a replacement battery for my lawnmower battery which will no longer hold a charge. Proper size and works fine.

  9. Rated 3 out of 5

    L. S.

    Bought in 12/2018. Worked well for home alarm system, but here I am less than 2 full years since purchased it and need to replace. Will gladly pay a bit more for longer lifespan. Will try Interstate next.

  10. Rated 5 out of 5

    Alice F.

    I installed the new battery, and it was fully charged within 12 hours. I hope it lasts longer than the old expensive one.

  11. Rated 5 out of 5

    Lion Heart

    Worth the money spent !

  12. Rated 5 out of 5

    Canyonhiker

    Used this on a DR Hauler, fit just like the original, much cheaper than the manufacturers battery.

  13. Rated 5 out of 5

    Adam Shaw

    Arrived amazingly fast super well-priced include free shipping and works like a charm five stars all the way around

  14. Rated 5 out of 5

    Tom Wecas

    This battery came out of the box charged and ready to go. Installed in a electric start lawnmower started right up, perfect fit.

  15. Rated 5 out of 5

    theheadliner

    This battery is the second from this maker for different tools. Can’t see a bid of difference in performance that that of factory installed battery with tool was new, but BOY is there a difference in price. Saved over $70 by buying this battery ov er buying a replacement from the company that made the tool.

  16. Rated 5 out of 5

    Continually returning customer

    I installed this in my lawn mower for the electric start. A perfet fit and packed with power. Has 5MAH where mine only had 4 MAH so just means I mite not charge it tell fall.

  17. Rated 5 out of 5

    mac

    GOT IT FAST WORKS GREAT THANKS

  18. Rated 5 out of 5

    Mr. James K. Rhone Sr.

    This battery has been on my riding mower for a month and it starts right up. So far so good..The price was excellent too

  19. Rated 5 out of 5

    Cort Rowland

    Used on my pushmower

  20. Rated 5 out of 5

    Aaron Ison DDS

    This fit my lawnmower just like the original. Works great.

  21. Rated 4 out of 5

    Steven Aron

    Good size

  22. Rated 5 out of 5

    W Simmers

    Battery was s perfect fit and direct replacement on my battery start gas mower. It works perfectly and I wouldn?t hesitate to purchase another one of these as I repair mowers for other neighbors

  23. Rated 5 out of 5

    Classic Small Engine

    All I had to do was take out of the package and install and go ! Awesome !

  24. Rated 5 out of 5

    Customer

    fits great

  25. Rated 5 out of 5

    J. Shipley

    Perfect

  26. Rated 5 out of 5

    ARK

    I purchased this for replacing an aged APC UPS battery. I don’t know how much different the claimed 5AH is from similar products’ 4.5AH. It’s so far so good.

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Excellent
Mighty Max Battery
Based on 4682 reviews
ML22-12 Gel type and ML22-12 Non Gel type Batteries came in good condition, purchased from Amazon 6/23/26 and arrived the next day packaged really good.
Very well packaged and.arrived as promised
Works great!!
Love the Boost!!! I got newer batteries for my grandchildren and painted this black for my boys
It was delivered fast. Good product.
Was an excellent fit for my fios wall box. Inexpensive too! Was dealing with a dead battery for years with beeping every few minutes. This fixed it right up and now will keep internet when the power goes out.
Shipped as it should have been. Received in good condition.
This saved my life... Well not my life but... well the battery on my new predator 3500 generator was dead!! I got it on a super duper sale but I didn't open the box for 6 months, when I did I discovered a bad battery 😟. I called them and they wanted double the price I paid for Amazon to deliver it the SAME DAY!! They didn't even carry the battery in their store 🤬. I put it in and just like that, I can run my mobile Italian ice business again! 😆 Thank you mighty max and Amazon for getting me together!!
Great battery at a great price. Work really well.
This might look like a mess of wires, but it's really the backbone of my home's network and more. Everything important to our home security and connectivity relies on steady power that I have on a battery backup.

I just purchased a replacement battery for my UPS and it's a Mighty Max Battery that is working behind the scenes here. This was almost half of the cost of the OEM battery, and it was a perfect fit for the unit.