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

(42 customer reviews)

From: $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
$ 46.99
$ 59.99
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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. 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. Robert

    hope it lasts

  3. RLewis

    Perfect fit, good replacement.

  4. Beaner

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

  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. 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. country boy

    It is a perfect replacement. Devise works perfectly.

  8. country boy

    It is a perfect replacement. Devise works perfectly.

  9. 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. 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. Marin Digital

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

  12. Steven C.

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

  13. 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. sarai virgili

    works well

  15. 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. ShadeTree Mechanic

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

  17. David

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

  18. FPM

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

  19. Frederick P. Mcatee

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

  20. Doug

    Easy to install. Fast shipping.

  21. M. Stephens

    Took only minutes to install, works like a charm.

  22. Tom Sargeant

    Perfect fit, works great

  23. Tom Sargeant

    Perfect fit, works great

  24. Robert F.

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

  25. 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. 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. GEH – Worthington

    HIGHLY RECOMMENDED. EXCELLENT

  28. GEH – Worthington

    HIGHLY RECOMMENDED. EXCELLENT

  29. Robert G. Wolff

    fits like the original and does its job.

  30. 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. Web Customer

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

  32. Customer

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

  33. J. K.

    Great UPS replacement battery.

  34. Customer

    Product as described. Retrofitted perfectly into our existing UPS.

  35. R.C.

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

  36. Len

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

  37. 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. 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. Samuel bryan

    Very good & fast service.

  40. Richard Morin

    Perfect fit and performs like new.

  41. 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. Stan Zborowski

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

Only logged in customers who have purchased this product may leave a review.

Mighty Max Battery
Excellent
4.8
Based on 452 reviews
Mighty max brings the battery backup back.
Arrived well packed in unopened sturdy box. Was replacement for identical Mighty Max battery I ordered 2 years ago. Taking 1 star off because didn’t include the needed terminal clips - was able to use the old battery’s clips
Same model fits in each of our four wheelers great product
Replacement for my Murray MT100 riding lawnmower. Murray does not make replacement batteries and you are on your own if the battery goes bad. Bought Murray MT100 in 2023, battery went bad in 1 year and all other Murray replacement batteries are LARGER so it won't fit.This Mighty Max Battery fit the MT100 fine and it starts it perfectly too.
Direct replacement for generac portable electric start generator. Works great.
Received really quick. Boxed well and fit great. Worked like a charm! I would definitely recommend this battery.
As an athletic trainer I rely on our water units every day to provide the water to our athletes. We have over 900 student athletes enrolled, and these units get used daily, so it is imperative these batteries are reliable. On a side note, I also use these batteries on my fishing kayak to power my fish finder. I can use my fish finder for about 20 hours before it turns off. These batteries are great! Highly recommend. I have not had any issues so I haven't spoken to customer service yet, but if they are as good as these batteries have been, I think I am in good hands.
Needed a replacement battery and the manufacturer wanted $50 whereas you only required $20. Made it worth it!
satisfy with price and easy installation.
Arrived in great condition comes with the bolts to attach the wire over all very satisfied
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