Rated 4.75 out of 5 based on 16 customer ratings
(16 customer reviews)

$17.99

ML5-12 – 12V 5AH UPS Backup Battery Replaces Jolt SA1250

SKU: ML5-12244 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

16 reviews for ML5-12 – 12V 5AH UPS Backup Battery Replaces Jolt SA1250

  1. Rated 5 out of 5

    mcjoe

    works as it should

  2. Rated 5 out of 5

    Mark Sedlak

    Did what it was supposed to do and good price.

  3. Rated 5 out of 5

    Mark Sedlak

    Did what it was supposed to do and good price.

  4. Rated 5 out of 5

    Linda Del Toro

    A good product

  5. Rated 5 out of 5

    Linda Del Toro

    A good product

  6. Rated 2 out of 5

    Robert L. Nelson, Sr.

    Does not have charge, trying to recharge.

  7. Rated 5 out of 5

    GERHARD DANTER

    This battery was perfect in every way what’s the exact size of the stock one terminals were correct and it fit perfect and I worked good too

  8. Rated 5 out of 5

    GERHARD DANTER

    This battery was perfect in every way what’s the exact size of the stock one terminals were correct and it fit perfect and I worked good too

  9. Rated 5 out of 5

    jmd

    Perfect replacement for my trailer brakes.

  10. Rated 5 out of 5

    R. Mueller

    The battery was as described. Was delivered in a timely manner. All good.

  11. Rated 5 out of 5

    Donn C

    Great product works good.

  12. Rated 4 out of 5

    GARY P.

    Only had it for a few week, unknown how well it will hold up.

  13. Rated 5 out of 5

    John Utpatel

    this is my first time using Mighty Max batteries and im very happy with the quality and price.i will buy agin !

  14. Rated 5 out of 5

    Ronny Ong

    Worked great as a replacement for UB1250 in my security system

  15. Rated 5 out of 5

    Victoria

    Perfect replacement for our trailer emergency brakes.

  16. Rated 5 out of 5

    Narasimha Krishna

    Thanks — this is a great replacement for the original Panasonic that is used in the Belkin 550VA UPS backup. I have had a couple of power failures and the backup has kicked in very well.One important point to remember is that the load should be 60% of the UPS capacity so that the chances of battery 100% charge/recharge cycles are kept to a minimum.

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Excellent
Mighty Max Battery
Based on 3470 reviews
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
Fonctionne bien et s’est bien adaptée pour le remplacement de l’ancienne.
Battery arrived in perfect condition and 100% charge.
Strong battery! It spins my 24 hp Kohler engine super fast!
Arrived fully charged..great price