Rated 4.90 out of 5 based on 30 customer ratings
(30 customer reviews)

$20.99

12V 8Ah Compatible Battery for APC Back-UPS CS BK350, BK350i, BK350Ei

Availability: In stock

SKU: ML8-121230111114 Category:
Delivering power when you need it, the Mighty Max ML8-12 12 Volt 8 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 ML8-12 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: 8 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions:
5.94 in x 2.56 in x 4.02 in
Weight: 4.96 Lbs
Warranty
1 Year
Weight

4.96 Lbs

Height

4.02

Warranty

1 Year

Length

5.94

Quantity

1

Terminal

.187" – F1

Chemistry

SLA / AGM

Width

2.56

Amp Hour

8Ah

Volts

12V

30 reviews for 12V 8Ah Compatible Battery for APC Back-UPS CS BK350, BK350i, BK350Ei

  1. Rated 5 out of 5

    Guy H. –

    I installed the battery 3 weeks ago and it has been working fine. No problems with the installation which took 3 minutes!

  2. Rated 5 out of 5

    Web Customer –

    Way better than paying verizon 7X the price for the samething. Ding ding ding!

  3. Rated 5 out of 5

    Customer –

    Way better than paying verizon 7X the price for the samething. Ding ding ding!

  4. Rated 5 out of 5

    jacek dabek –

    Exactly what I need. Good battery for the money, fast shipping!

  5. Rated 5 out of 5

    jacek dabek –

    Exactly what I need. Good battery for the money, fast shipping!

  6. Rated 5 out of 5

    michael krueger –

    c

  7. Rated 5 out of 5

    Web Customer –

    works great

  8. Rated 5 out of 5

    Customer –

    works great

  9. Rated 5 out of 5

    SomeGuy –

    Only none OEM lead acid I will get.

  10. Rated 5 out of 5

    JD –

    Works as predicted. We’ll have to wait and see if it lasts like it should.

  11. Rated 5 out of 5

    Charles S. –

    Using it for the Verizon Fios connection box.

  12. Rated 5 out of 5

    WareHaus Recording Studio,LLC –

    Great battery, worked as soon as it was installed. This replace our old battery that was in the unit for about 7 years. Would buy again!!!

  13. Rated 5 out of 5

    Wart050 –

    I used this to replace the defective battery in my APC CS350 ups back up. As other reviewers have stated, the terminals do not match up but are usable.

  14. Rated 5 out of 5

    Jackie –

    good price, good battery

  15. Rated 5 out of 5

    Joe Over Here –

    Works great. What else can I say.

  16. Rated 5 out of 5

    Kenneth John –

    A good, inexpensive and so far a very good product. Service is great with Mighty Max if you should have a problem with your purchase !

  17. Rated 5 out of 5

    Kevin Shipbaugh –

    great.

  18. Rated 5 out of 5

    Customer –

    Perfect fit. Terminals attached easily and slid right into the APC. Up and running in two minutes.

  19. Rated 5 out of 5

    GregSCSA –

    This battery was a direct replacement EXCEPT the terminals were SLIGHTLY smaller. Even so – no adaptations had to be made; it was replace and back in service!

  20. Rated 4 out of 5

    TBGH –

    Works as expected so far.

  21. Rated 4 out of 5

    drsuna –

    Battery fit into the casing. The tab however, on the positive lead is smaller than the original. I have to improvised a bit to get it to work. Haven’t have a power outage yet sip don’t know how the battery holding up.

  22. Rated 4 out of 5

    ross –

    perfect, fast shipping, would be 5 it the terminals were a little thicker like other batteries. but have thought three no issues.

  23. Rated 5 out of 5

    Piixel Pusher –

    It holds a charge and works fine. DOn’t know runtimne yet.

  24. Rated 5 out of 5

    Customer –

    Exactly the right item, right price. Increased AH. Charged up nicely, and fixed my old UPS. Dunno why I waited so long to replace this.

  25. Rated 5 out of 5

    osprey –

    The battery terminals were a bit narrower than my original OEM battery and therefore narrower than my connection leads, but the leads attached firmly and stayed in place. It is working fine.

  26. Rated 5 out of 5

    Roseann Thompson –

    works great, does and was just what my husband wanted.

  27. Rated 5 out of 5

    Mark –

    Good quality replacement extended the life of my UPS. Good value, good quality.

  28. Rated 5 out of 5

    tjester –

    Fit perfectly

  29. Rated 5 out of 5

    kalohe guy –

    Just what I needed for a battery that was atleast 5 yrs. old, I had no problem inserting new one into the case…

  30. Rated 5 out of 5

    Russell J Borchert –

    great buy, would buy again

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Excellent
Mighty Max Battery
Based on 5526 reviews
Cool looking battery., will be placing in a Pontoon Boat soon. 👍
Received the replacement ML4-6 battery for my Coleman lantern and it was an exact match. I’m very happy with the battery and it works as it should. Update, ordered another mighty max battery. This time it was for my battery backup. Exact for and extremely easy to swap out. For $20 i got my $80 backup working again. Thank you mighty max battery another satisfier customer with an excellent retutation, i highly recommend.
Excellent Product and Seller!!!
I placed it as you can see from the old to the new on my EverStart Jumper as you can see in the pics it fit perfectly and I gave it a 24 hour initial charge on my house outlet with a thick orange cable and as I tried it it worked perfectly in all functions, I woulkd give it a 100% Excellent Recommendation!
I had an old harbor freight 3 in 1 auto battery jumper that no longer would hold a charge. This ML 18-12 MIGHTY MAX REPLACEMENT BATTERY, fits exactly as original and is holding a stat of charge greater than 13 volts after first time charge. The photo is the old battery. I've already installed the he MIGHTY MAX and don't want to open again.
Packaging was very good.
Let's see how long it lasts.
Works like original
They are what I ordered and they came sooner than I thought then was told to me
New home rough but comfortable
Excited to try a GEL battery and hoping for extended Life in Florida. Engine starter spins like brand new.
Great Battery!
Great price! Heavy duty!