Rated 4.83 out of 5 based on 42 customer ratings
(42 customer reviews)

$18.99

ML3-12 12V 3.4ah UPS Replacement Battery for APC BACK-UPS ES BE350G

SKU: ML3-127 Category:
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$33.99
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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

42 reviews for ML3-12 12V 3.4ah UPS Replacement Battery for APC BACK-UPS ES BE350G

  1. Rated 4 out of 5

    Web Customer –

    Fit perfectly as a replacement in my old APC UPS. Time will tell if it holds up as well as the original.

  2. Rated 5 out of 5

    Robert –

    hope it lasts

  3. Rated 5 out of 5

    RLewis –

    Perfect fit, good replacement.

  4. Rated 5 out of 5

    Beaner –

    Great battery with great power to start my mower. direct replacement and it works great.

  5. Rated 5 out of 5

    Aktreker –

    Have had two of these installed since October. During our 46 hour power outage, I ended up using the UPS, a limited amount each time, to power my 65 TV so we could get some news (had zero cell service). 2X a day for about 20 minutes each and we were able to get updates via that method 4.25 times before the UPS shut down.

  6. Rated 4 out of 5

    C –

    I ordered this battery as a replacement to put back in my APC unit. The original battery was very costly. So this one was half the cost. I will continue to monitor the progress on how long it last. Only have laptop, printer, desktop media server plugged into it. So far, so good holding up well.

  7. Rated 5 out of 5

    country boy –

    It is a perfect replacement. Devise works perfectly.

  8. Rated 5 out of 5

    country boy –

    It is a perfect replacement. Devise works perfectly.

  9. Rated 4 out of 5

    Autobahn97 –

    I had a Cyberpower 1500VA (os so) battery backup that I purchased about 4 years ago at my local membership warehouse store and during the last power outage I found out the original batteries were too weak to run my PC. After some research I found these mighty max batteries that I learned that I could use 23 of to replace the oem battery pack on my cyberpower unit. essentially you replace 1 battery at a time to the OEM wire harness, optionally use some packing take to tape the two batteries together into a single ‘pack’ then slip it back into your battery backup and plug it back into the units connector and that’s it – battery replaced. So far it seems to work well but only time will tell the longevity of these batteries.

  10. Rated 5 out of 5

    Richard R Kazmierzak –

    This battery went into a small UPS, it worked great, it is half the price of the original battery. I can not speak to how long it will last as I just installed it.

  11. Rated 5 out of 5

    Marin Digital –

    I’m able to get 3-5 years on these batteries in my UPS.

  12. Rated 5 out of 5

    Steven C. –

    The battery is working fine. The price is good and we got it fast. Time will tell if it holds up.

  13. Rated 5 out of 5

    Comprador –

    This is a replacement battery for an APC UPS and was much less expensive than buying a replacement from API. It is made in China, but so was the original API battery.

  14. Rated 5 out of 5

    sarai virgili –

    works well

  15. Rated 5 out of 5

    It’s super effective! –

    Decent replacement UPS battery. Not like these type of batteries are advanced to begin with so… Works fine so far.

  16. Rated 5 out of 5

    ShadeTree Mechanic –

    Works fine — hopefully it will last as long as the original did (over 5 years)!

  17. Rated 5 out of 5

    David –

    Fit right in and plugged right in, was already charged, back in business.

  18. Rated 4 out of 5

    FPM –

    Would it fit in the battery space in my Energizer UPS? Yes, it did!

  19. Rated 4 out of 5

    Frederick P. Mcatee –

    Would it fit in the battery space in my Energizer UPS? Yes, it did!

  20. Rated 5 out of 5

    Doug –

    Easy to install. Fast shipping.

  21. Rated 5 out of 5

    M. Stephens –

    Took only minutes to install, works like a charm.

  22. Rated 5 out of 5

    Tom Sargeant –

    Perfect fit, works great

  23. Rated 5 out of 5

    Tom Sargeant –

    Perfect fit, works great

  24. Rated 5 out of 5

    Robert F. –

    Installed this in a battery backup for my LED front porch and driveway lights

  25. Rated 5 out of 5

    ZIM OLSON –

    Tired of buying replacement UPS . Price keeps going up. Batteries keep wearing out. In desperation looked to and found this. Wife now has a brand new UPS in her corner office. Working for number of months now.

  26. Rated 4 out of 5

    Jack H. –

    Too bad I took a month to get around to installing the battery; 1 year warranty doesn’t cover me anymore. I’ll be buying a second battery and hoping it lasts longer than this did this time.

  27. Rated 5 out of 5

    GEH – Worthington –

    HIGHLY RECOMMENDED. EXCELLENT

  28. Rated 5 out of 5

    GEH – Worthington –

    HIGHLY RECOMMENDED. EXCELLENT

  29. Rated 5 out of 5

    Robert G. Wolff –

    fits like the original and does its job.

  30. Rated 5 out of 5

    Richard L. Moreland –

    Putting new batteries in a UPS backup is a very cheap way to bring that unit back to brand new. New battery lasts 3 to 5 years and about 20% of a new unit. thanks, rich

  31. Rated 5 out of 5

    Web Customer –

    Well packaged, 30 second replacement – UPS is good as new again!

  32. Rated 5 out of 5

    Customer –

    Well packaged, 30 second replacement – UPS is good as new again!

  33. Rated 5 out of 5

    J. K. –

    Great UPS replacement battery.

  34. Rated 5 out of 5

    Customer –

    Product as described. Retrofitted perfectly into our existing UPS.

  35. Rated 5 out of 5

    R.C. –

    Great price and fit perfict! Hope it holds up as long as the original.

  36. Rated 5 out of 5

    Len –

    I FOUND THIS BATTEY TO BE A WELL MADE BATTERY AND PRICED WELL BELLOW THE COMPETITION.

  37. Rated 5 out of 5

    Robert Matcham –

    For the cost of this battery, it performs as well if not better the the Brand named battery it was designed to replace. Do not hesitate…go ahead and save your money and buy this battery.

  38. Rated 4 out of 5

    Phil –

    The fit is perfect, and the battery seems to work fine (just installed and tested) I wish that I had read that it has T1/F1 terminals since the original battery and UPS were T2/F2. Works, but not the best connection to use mismatched connectors. My fault for not seeing that but the terminal difference does not make the battery an exact replacement, only an acceptable one.

  39. Rated 5 out of 5

    Samuel bryan –

    Very good & fast service.

  40. Rated 5 out of 5

    Richard Morin –

    Perfect fit and performs like new.

  41. Rated 5 out of 5

    Peter –

    My APC battery expired a few weeks ago. I found a replacement battery on and received the Mighty Max within a few days. It was identical to the old battery. Simple installation and the unit was online again! I highly recommend this battery. I has been running for a few weeks with no issues. This is a great five star***** product. Highly recommend

  42. Rated 5 out of 5

    Stan Zborowski –

    Perfect replacement for the original battery. Very happy with this product. I would definitely use them again.

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Excellent
Mighty Max Battery
Based on 5475 reviews
Our gate is working great 😊 now that my husband installed our new mighty max battery!!!
Installed new mighty max batteries in my Polaris Gem 4, and saved a lot of money. It’s now running like new. Thanks!!!
Received in good condition. Will need to follow up with review after use.
Battery arrives one day later than originally scheduled but still relatively quickly. Battery came well packaged to prevent any damage during Transit. Appears to be same size and configuration as the battery it is to replace. Looking forward to seeing how it performs.
I have MightyMax batteries in my classic 1968 Yamaha Trailmaster and also one in my 2014 Yamaha SR400 and couldn't be more satisfied with delivery and quality of my new batteries.

Website for fitment was easy to find the correct batteries and I feel the price is very fair. You get a great battery for less cost.

I guest you could say you get more than what you pay for.
Battery works just fine and it was an easy install
The battery fit perfect. I did have to add F2 connectors, but that's not because of the battery, it's because my lawn mower battery exact replacement is discontinued. It's been working fantastic for 2 weeks now.
This product arrived packed very well and on time. It is a perfect replacement exact same size for my application. I am very happy with my purchase and installed it today.
Bought this battery from Amazon. Had it the next morning.
Excellent Battery