Delivering power when you need it, the Mighty Max ML9-12 12 Volt 9 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 ML9-12 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: 9 AH
Chemistry: SLA, AGM
Terminal: F2
Battery Dimensions:
5.94 in x 2.56 in x 4.02 in
Weight: 5.10 Lbs
Warranty
1 Year
markdown –
I can’t speak to longevity because I just purchased it. My employer was giving away some surplus IT equipment, one of which was an APC surge protector with battery backup. I was told it might be toast, but all it needed was a fresh battery. Good to go! Mighty Max works as good as OEM battery.
Unsatisfied prime member –
I used this battery for a UPS battery replacement. Fit perfectly and working great! Not sure how long it will last but so far, so good! Will buy again!
W. Bosch –
2x of these (12V 9Ah) worked great for an APC Back-UPS Pro 1500G. A bit of electrical tape to secure the batteries to the UPS adapter is all you need. Then slide it back in and all done. Ready for the next electrical grid failure.
Gary Wool –
This is a really low cost option for my UPS. I have testing down to 50% and it seems to be at the 9Ah rating. Just what I wanted.
Sheila A. Foss –
It’s a battery to my UPS that is on my refrigerator & stove. It was the right size, & works great, since we have had several extremely windy days causing surges & a power loss. Protects the digital components from surges. Gives me time to get the generator running.
James –
Cane on time good replacement.
spryor –
Works as stated. Still working.
spryor –
Works as stated. Still working.
Ron Bengs –
Quick delivery, Simple installation.
John Fischer IV –
This battery will probably be ok in my Back-UPS ES. All the ratings on this battery are the same as the original.
Makoto Marfil –
This fit my 11 year old APC ES-550 Back-UPS unit perfectly after the original internal battery died. It was less expensive than buying an entire new UPS unit. My UPS was designed with a replaceable battery so it was just ?plug & play?. It did have to charge for a while before the UPS would turn on, but seems to be working fine so far. My WiFi, Smartthings hub, and cable modem are able to stay up and online during minor power outages
Flybob –
Used this to replace the battery in an APC UPS. This one fit fine and has worked when the power is removed as a test.However, since I installed this battery, several times a week the UPS will issue the power failed alert and make clicking noises like it switched a relay. WITHOUT anything else in the house indicating a power failure, including another APC UPS 10 feet away. This UPS is 15 years old (I think this is its 3rd battery?) and it never exhibited this behavior until I installed this battery. It still provides power (maybe its just showing off?) but its annoying nonetheless, especially when it happens at night.
Ari123 –
It is the second Mighty Max ML-9 battery that I purchased for an APC UPS. The first one lasted 38 months. It was always charged, lightly used, and placed in an air conditioned room. I would expect a battery in such conditions to last at least 60 months. Hence the 3 stars.
Carl L. Young III –
Popped right in and revived my power supply. Durability is yet to be determined, but had a short power outage the day after I reconnected the protector, and it worked properly.
Anthony@ohio –
This is the 2nd time that I have bought this replacement battery. The 1st time was in March 2016 on one of my other UPSs. Obviously, that thing is still working. 4 years is long enough and deserves a 5 stars. Hopefully, this 2nd buy will last long too. Thanks, Anthony
Anthony@ohio –
This is the 2nd time that I have bought this replacement battery. The 1st time was in March 2016 on one of my other UPSs. Obviously, that thing is still working. 4 years is long enough and deserves a 5 stars. Hopefully, this 2nd buy will last long too. Thanks, Anthony
als –
Works fine.The connectors are exactly the same as those on the original battery. Easy to install once you remove the two plastic terminal protectors. Perhaps the reviewer who complained about non-standard connectors needed to remove the plastic protectors?
Shootergreen –
backup power supply replacement battery works great!
Kevin Patfield –
Chose this as the cheapest available replacement battery for my UPS. Seems to be working just fine
Bobalouis –
The battery arrived on time and was as promised. Effectively rejuvenated my old battery back up.
Umbriago –
Used in an older APC Back-UPS ES 725.A bit larger than original, but tilt to insert with slight pressure. Be sure to connect wire couplers tightly before pushing into place.Only 4 stars because I don’t know how long it will last. Original battery lasted many years.
R. D. Clark –
Works great fast shipping
R. D. Clark –
Works great fast shipping
Ken Olson –
My go to battery for UPS. Multiple orders……I’ve got a lot of UPSs.
Retired Educator –
Replacement was easy and only took a couple of minutes to complete. I hope this battery lasts as long as the brand I have just replaced–approximately 6 years!
David S. –
Fit perfectly, easy connection in my APC Back-UPS ES 725, good price. What more could you want?
Stans07a –
Fits right in. No problems
Eldon Griffiths –
Fast delivery. Works as expected.
Daniel F Schmitt –
Working fine so far after 2 days.
T. R. TinkerTop Contributor: Fishing –
The battery itself is fine. It’s still relatively new and as others have mentioned, it holds a charge longer than other 9Ah batteries I have used. I have a problem with the terminals. They are neither F1 (0.187) nor are they the F2 (0.250) advertised. Finding a female quick disconnect terminal has been a headache..
Cranky –
The battery itself is fine. It’s still relatively new and as others have mentioned, it holds a charge longer than other 9Ah batteries I have used.I have a problem with the terminals. They are neither F1 (0.187) nor are they the F2 (0.250) advertised. Finding a female quick disconnect terminal has been a headache..
Web Customer –
So far,so good. Fit perfectly and stopped the annoying beeping. Hope it lasts as long as the verizon one.
Customer –
So far,so good. Fit perfectly and stopped the annoying beeping. Hope it lasts as long as the verizon one.
Jeff Brunson –
Awesome
Daphne –
better than advertised capacity and came well packed
Ricky Goswick –
Easy to install and so far has performed like I expect it would. I have had 3 power outages and my connections stay up and active.
DJMajickMan –
Now to order more as I found two more of my battery backup units are now in need of battery’s.