ML9-12 - 12 Volt 9 AH, F2 Terminal, Rechargeable SLA AGM Battery,Pack of 1

A great replacement battery for my APC battery back up unit. This battery offers slightly increased capacity and so far it is working very well

Googled how to replace the battery and it seemed straight forward. Removed the screws and through a little effort removed the old battery. I had to use the rubber seal strap the old one had around it on the new unit, just be patient, it comes off (adhesive).Re-installed and checked the current charge. From what I can guesstimate, it probably came with an 80-85% charge out of the box. I let it charge over night and found the battery to be 100% in the AM. Typical of new chargeable items, let it charge overnight or the entire day.I tested the Pathfinder 2 speaker and it turned on and demonstrated a charged battery.These are not lifetime batteries, but you should "exercise" them. Deplete to as close to zero and charge to 100% as much as possible. If you let it sit for a LONG period of time with zero charge or constant charge then the battery will perish. I had not charged or used the unit for a couple of years which led me to looking into battery replacement after seeing the newer model speaker at Costco for $150

Replaced my old UPS batteries, works well!

This was a perfect fit for my AmazonBasics 800 va UPS. It is better than original due to AGM (Absorbent Glass Mat) vice SLA (Sealed Lead Acid) design. Adding a photo here gained me three extra months of warranty!

Have the APC 3 years to the date, and the battery starts to give issues, wondering if there is is timer in it? Anyway, the MighttyMax ML9-12 is a perfect replacement, love it👍🏻

Installed without issue in my APC SMartUPS BE550G. Time will tell how long it lasts. I was getting a little less than 3 years life out of the oem battery - let's see how long this one goes.

Great battery, at a great price, and next-day shipping!I have purchased several sizes of MightyMax batteries for my UPS units, and they are perfect replacements. This purchase is replacing a battery that was installed 12/14/20 - Over 4 years of continuous service.

I purchased MightyMax batteries a few times before, and those batteries performed mostly as expected. When my CP1000PFCLCD's OEM battery died, I purchased this MightyMax ML9-12 along with 2 other brands' batteries. After tests on each one, while the MightyMax one performed better than the other two, it failed to match the OEM battery's runtime.The battery arrived within one day. I installed it into my CyberPower CP1000PFCLCD without issues, and let it discharge and charge fully. When running self-test using PowerPanel Personal app under 10~11% load, the battery capacity dropped to 95% before the test ended and passed. I also did a deep test on Linux with NUT. The test ran about 32 minutes with 5 minutes estimated left. That gives its total runtime about 37 minutes under 10~11% load. The runtime graph of CP1000PFCLCD shows expected runtime of 50~55 minutes.So, this battery certainly works with CP1000PFCLCD, but its runtime is less than the specs. I also noticed this battery weights about 5.5 lbs, while the OEM one weights 6 lbs. Maybe that makes a difference?