ML3-12 - 12 Volt 3 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML3-12 - 12 Volt 3 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML3-12 - 12 Volt 3 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML3-12 - 12 Volt 3 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML3-12 - 12 Volt 3 AH, F1 Terminal, Rechargeable SLA AGM Battery
Rated 4.63 out of 5 based on 16 customer ratings
(16 customer reviews)

$18.99

ML3-12 – 12V 3AH SLA UPS Battery Replacement for Long Batteries WP312

SKU: ML3-1268 Category:
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$ 33.99
$ 46.99
$ 59.99
$ 89.99
$ 139.99
$ 18.99
Delivering power when you need it, the Mighty Max ML3-12 12 Volt 3 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 ML3-12 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: 3 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions: 
5.28 in x 2.64 in x 2.64 in
Weight: 3.20 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack, 10 Pack
Volts

12V
Amp Hour

3Ah
Chemistry

SLA / AGM
Terminal

.187" – F1
Quantity

1
Length

5.28
Width

2.64
Height

2.64
Weight

3.20 Lbs
Warranty

1 Year

16 reviews for ML3-12 – 12V 3AH SLA UPS Battery Replacement for Long Batteries WP312

  1. Rated 5 out of 5

    DD –

    Purchased this battery for my mower after making sure all the specs were right. It works perfectly! I’d ordered a battery from the local lawn equipment repair shop for $60 before it occurred to me to check online. Canceled that order, got this one instead, and was extremely happy about how much money I saved!

  2. Rated 5 out of 5

    Kenneth E. Guard –

    best price I could find on item I needed

  3. Rated 5 out of 5

    Johnny C –

    Good as the original.

  4. Rated 5 out of 5

    Neil –

    Perfect replacement at a reasonable price.

  5. Rated 3 out of 5

    Gary R –

    Haven’t had it long, so can’t say how long it will last. Bought it to replace the battery in APC BE325R UPS. Would give it another star but it is very slightly too big for the slot for it in the BE325R. I was able to get the cover back on, but had to force it some and the cover doesn’t close flat. It is functional, though.

  6. Rated 5 out of 5

    juan rivera –

    good

  7. Rated 5 out of 5

    JR Woodworker –

    this battery works great as a replacement battery in my power backup unit.

  8. Rated 5 out of 5

    Leenie Atwood –

    Just what I ordered and expected

  9. Rated 4 out of 5

    Travis –

    Does what it’s supposed to. Certainly no complaints.

  10. Rated 4 out of 5

    MT –

    Glad to have this available.

  11. Rated 5 out of 5

    Kenneth Nesteroff –

    Worked perfectly!

  12. Rated 5 out of 5

    James and Jenn –

    Battery was a direct replacement and has been working as expected so far.

  13. Rated 5 out of 5

    D. Temkin –

    it does exactly what I want, delivery was prompt

  14. Rated 3 out of 5

    Edwin B. Miller –

    seemed to work, but lets wait and see!

  15. Rated 5 out of 5

    Penguin –

    Works perfectly! Arrived as expected/shipped promptly. Trustworthy merchant.

  16. Rated 5 out of 5

    Penguin –

    Works perfectly! Arrived as expected/shipped promptly. Trustworthy merchant.

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Excellent
Mighty Max Battery
Based on 4143 reviews
See all reviews
allan levitt
Arrived in perfect condition
Lalo
2011 Yamaha Raptor 700R battery, started right up. Has a 1 year warranty. Great deal.
Zach Mankowski
Love mighty max batteries
Roger Smith
Arrived well packaged. No information as to original warranty coverage and term, but lots of solicitations to extend the warranty coverage for a whole amazing 90 days - Wow, such product confidence! At least it’s not made in China, but is Thailand any better for quality manufacturing? We’ll see.
AK B
Ktm duke 390
Kerry-Ann McNeil-Harris
Arrived next day and sas very easy to install. They also offer free 3 warrany extension.
Anne Marie Forbes
I ordered this MightyMax battery through Amazon. The Ad states it works in my GE Simon XT house alarm.
Susan Blankenship
I received my battery from Amazon on March 9, 2026. The box was a little squashed but the battery was packaged well and it it fine. I installed it and finally my gate opener is working properly. I purchased 2 batteries before this and had to return them because they were the wrong battery. This one is working great.
Eric Allen
Looks the part, I am charging it fully before install on my jet ski.
Allan Cain
These batteries arrived in great shape with the handle on top so you can carry it screw so you can hook them up very professional looking better about them from Home Depot

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