12V 8AH Replacement Battery for CyberPower Office Power AVR 685AVR

(52 customer reviews)

$21.99

12V 8AH Replacement Battery for CyberPower Office Power AVR 685AVR

Availability: In stock

OR

SKU: ML8-121126 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

52 reviews for 12V 8AH Replacement Battery for CyberPower Office Power AVR 685AVR

  1. thofar

    I have an older Cyber Power 685AVR that quit working some months ago. I thought I was going to have to throw it out and buy something new. However, I found this replacement battery that totally solved the problem and at a fraction of the cost.

  2. Jocelyn Nitsch

    We have purchased this before to replace in our ups. Easy to transfer.

  3. brian smith

    fast shipping and good product

  4. P. Michael Moffa

    This battery was easy to install, and made UPS like new. Working great again.

  5. Fix It Friend

    Bought this battery as a replacement to an ailing and failed original battery in my Cyberpower 685AVR. The new battery was the exact same size as the old. But the terminal blades on the new battery were a little thinner and narrower than the original battery. I had to narrow and close up the female crimp connector from the backup device… and as some may know that can be a delicate adjustment to insure a good final connection. Overall the replacement took about 15 minutes instead of 5… but I’m pleased to report I’m back in business. Replacing the battery is a lot cheaper than buying a complete new unit.

  6. Torrie

    This battery is just what the doctor ordered. After inserting the information from my old battery, this one popped up and the price was great. Bought for my UPS and is working great.

  7. Jimmie

    Works fine, perfect replacement

  8. Mic

    Ease to install, and price

  9. A BUYER

    SEEMED TO WORK AS DESCRIBED

  10. Thomas Hudgins

    Quick and easy to install. I have 2 UPS devices and this one went three years before the battery quit. I did the same thing to my other UPS when its battery quit about 6 years ago. Keeps my devices protected.

  11. joseph dadgari

    The battery works well, but my old CyberPower unit might be conked out.

  12. joseph dadgari

    The battery works well, but my old CyberPower unit might be conked out.

  13. Jim

    Most importantly, the given measurements were accurate and the install was simple. As for battery life, only time will tell, but the last battery was good for about three years.

  14. Drawring Simon

    I was about to buy the CP official battery, but saw the reviews on this 3rd party one. Everything is made easy by the included instructions. These batteries will be dead in 3-4 years, no reason to buy a premium OEM when it wasn’t that impressive of battery life. I will report back if the life is any different, but the chemistry is the same, so wouldn’t make sense if it didn’t last as long.

  15. David Lubin

    I bought this for my backup power supply but have since gotten rid of computer I had been using it for, but still have my router plugged into the battery backup so I don’t lose internet connection during brown or blackout.

  16. Joe Wilhem

    Product as advertised

  17. Samuel

    The battery arrived with the plastic safety covers not on the terminals but rather rattling in the box. Not the biggest deal, but at the same time could have become an issue if something were to short them out.It was fairly fast to swap in as a replacement to a UPS. Will update if there are any further issues.

  18. M. Vigod

    Easy replacement for my 685AVR UPS.

  19. A Customer

    Great replacement for my UPS. Not yet sure about lifespan of the battery. Last replacement lasted several years. Way cheaper than a new UPS. Working great so far. Super easy to install.

  20. Cheryl Drabczak

    Fast Service

  21. Elizabeth Epps

    good price and fast delivery

  22. rfhouck

    Good battery at a reasonable price.

  23. A Customer

    Great replacement for my UPS. Not yet sure about lifespan of the battery. Last replacement lasted several years. Way cheaper than a new UPS. Working great so far. Super easy to install.

  24. Marv Oppenheim

    My battery went dead so I bought another to replace it. Fit perfectly and easy to use.

  25. Marv Oppenheim

    My battery went dead so I bought another to replace it. Fit perfectly and easy to use.

  26. Aaron

    Works great! Just what the doctor ordered!

  27. Aaron

    Works great! Just what the doctor ordered!

  28. MC

    I really liked that this replacement battery fit perfectly. It started recharging immediately and was available for use in a couple of hours (I probably could have used it right away, but I like to make sure it is completely charged). Also, the low shipping cost (zero) is a big bonus.

  29. MC

    I really liked that this replacement battery fit perfectly. It started recharging immediately and was available for use in a couple of hours (I probably could have used it right away, but I like to make sure it is completely charged). Also, the low shipping cost (zero) is a big bonus.

  30. Jeffery Goonen

    Easy and quick to order. Install a little difficult.

  31. curt haugen

    It is exactly the battery we needed to replace the old one in our charger!

  32. curt haugen

    It is exactly the battery we needed to replace the old one in our charger!

  33. TW

    Easy replacement for a UPS. Works great.

  34. D. Wilson

    Just like the original and works great. Happy with the purchase.

  35. L. Wilson

    Just like the original and works great. Happy with the purchase.

  36. Michael D.

    Exactly as described. Excellent quality.

  37. Michael D.

    Exactly as described. Excellent quality.

  38. Web Customer

    Super easy install. Snug connectors are a benefit to know they are secured and won’t come off

  39. Customer

    Super easy install. Snug connectors are a benefit to know they are secured and won’t come off

  40. Web Customer

    There was a good price on the product I was working good so far

  41. Customer

    There was a good price on the product I was working good so far

  42. Steve Vaughan

    Perfect fit and easy to install….shipping was super fast! I would buy again as needed.

  43. Steven C Vaughan

    Perfect fit and easy to install….shipping was super fast! I would buy again as needed.

  44. mh

    Fit perfectly. Terminals exactly same as original.

  45. Sean

    The connector posts on the battery are a little narrower than the original battery but that made it easier to connect to the terminals. Everything is working fine!

  46. Lawrence D

    Great price

  47. Craig H.

    Complete instructions, easy removal and replacement.

  48. David H

    Works great and excellent price.

  49. Tim Beacham

    Great price including shipping.

  50. Kindle Customer

    Fit and works great

  51. Customer

    Fit and works great

  52. Buddha LLC

    third mighty max i’ve purchased. perfect fit, seems to be fine. good customer service. thanks !

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
js_loader