ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery
ML5-12 - 12 Volt 5 AH, F1 Terminal, Rechargeable SLA AGM Battery
Rated 4.83 out of 5 based on 18 customer ratings
(18 customer reviews)

$17.99

ML5-12 – 12V 5AH Replacement Battery for Liftmaster 3850 and 3850P

SKU: ML5-12319 Category:
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$17.99
$28.99
$39.99
$52.99
$74.99
$109.99
$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

18 reviews for ML5-12 – 12V 5AH Replacement Battery for Liftmaster 3850 and 3850P

  1. Rated 5 out of 5

    JOHN O. (verified owner) –

  2. Rated 5 out of 5

    Wayne Wandel –

    Fits and works perfectly. No idea how long it will last but at 1/4 the cost at the dealer, GREAT deal!

  3. Rated 5 out of 5

    james billick –

    a

  4. Rated 4 out of 5

    Shannon –

    Works great.

  5. Rated 5 out of 5

    Web Customer –

    It fit and it works. Just like original equipment.

  6. Rated 5 out of 5

    EP3eDoubleAnchor –

    Great replacement for the original at a fair price. No issues so far.

  7. Rated 5 out of 5

    Customer –

    It fit and it works. Just like original equipment.

  8. Rated 5 out of 5

    EP3eDoubleAnchor –

    Great replacement for the original at a fair price. No issues so far.

  9. Rated 5 out of 5

    Ed Brown –

    Perfect fit in my garage door opener (replaced a die hard battery in a sears door opener). Was delivered on time and I am happy with the results.

  10. Rated 5 out of 5

    Ed Brown –

    Perfect fit in my garage door opener (replaced a die hard battery in a sears door opener). Was delivered on time and I am happy with the results.

  11. Rated 5 out of 5

    Venzuello McMillan –

    Great product

  12. Rated 5 out of 5

    Venzuello McMillan –

    Great product

  13. Rated 5 out of 5

    JR –

    Fast delivery & prefect replacement battery!

  14. Rated 5 out of 5

    JR –

    Fast delivery & prefect replacement battery!

  15. Rated 5 out of 5

    Richard Sumner –

    Worked as advertised.

  16. Rated 5 out of 5

    Shazaman –

    Fits and works exactly as the most expensive batteries at an economical price. I love it.

  17. Rated 3 out of 5

    Carlos Torres –

    Buen producto

  18. Rated 5 out of 5

    udemanza –

    This backup battery is a perfect fit for my garage door opener which is a Liftmaster model 3850p. It is the same size as the original backup battery (485LM) and fits perfectly in the slot. Super easy to replace/install. This is a much cheaper price then getting an OEM replacement (485LM). Works great!!

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Mighty Max Battery
Based on 4682 reviews
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Emjhaye Juan
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.
Hal Model
Very well packaged and.arrived as promised
Ryan Scott
Works great!!
David V Garcia
Love the Boost!!! I got newer batteries for my grandchildren and painted this black for my boys
Dennis Moy
It was delivered fast. Good product.
Frank Scarano
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.
Brenda Killips
Shipped as it should have been. Received in good condition.
Thyckcutie 74
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!!
Debora Wesley
Great battery at a great price. Work really well.
Louis Wing
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.

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