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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Mighty Max Battery
Based on 4608 reviews
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Joe Boutte
Delivered on time and expected!
Brian Kuehl
Great Battery for the Ion Block Rocker Bluetooth speaker to make it mobile
David Stoner
This is the second pair of batteries that I am using in my Champion 8500 home generator. Manufacturer says replace batteries every two years in Floridas hot summer seasons. Had the first pair of these batteries installed over three tears and still start the 24v generator every time. Installed new ones because hurricane season 2026 started, and I don’t want to install the new ones during a hurricane. Best batteries I have ever had. First set from another company barely made it two years. Go Mighty Max!
Jerry Kuemper
Arrived on time. And was exactly what it was described. Exact match
Rudy Laurel
I am really pleased with the performance of the MIGHTY MAX BATTERIES I purchase to replace the ones that came on my RYOBI Zero Turn Mower.
Alfredo Gomez
From Amazon.ca arrived on time
Steve Okon
It arrived quickly and was ready to use.
skinnyd1982
I had to replace the battery in my back up generator. Purchased the Mighty Max on Sunday. Delivered on Monday. Installation in the generator was a breeze due to the perfect size and correct terminals. I’m confident this battery will last for years to come and will make powering my home easy when power goes out.
Joe DesRosier
Great price, arrived as promptly and made in the USA.
Pastor Anthony Davis
The battery arrived in a timely manner.

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