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

This was an excellent battery for my old Uninterruptible Power Supply (UPS). It is a CyberPower CP1000AVRLCD that has been reliable for years, but has recently failed even during brief power glitches. .My testing showed that the UPS would not support any load when commercial power failed despite the projected 30+ minute estimate displayed on the UPS screen. (I had mistakenly trusted the projected runtime on my UPS screen, but I guess it can be inaccurate when the battery goes bad).Various websites suggested a worn out battery was likely and that the batteries only last a few years.The UPS manufacturer lists OEM battery model RB1290 as the replacement, but it is ~2x the price of this battery.I debated purchasing a whole new UPS, but I took a chance with this battery and spent less than 20% of a new UPS.I ordered this Mighty Max battery because it was available for overnight delivery and was reasonably priced compared to the manufacturer's suggested OEM battery. This replacement battery appears to be identical to the original battery in both electrical specifications and physical size.I'm very pleased that this battery was a perfect fit and took under five minutes to install!After installing this new battery, the UPS works perfectly again!

I replaced all the batteries in my UPS units before hurricane season. These arrived quickly, were fully charged and fit like OEM. Excellent price and gave me 47 minutes of power when tested with my modem, router, and wifi mesh. Worth every penny

The battery is a direct replacement for the battery in my Tripp Lite UPS. The battery was about 90% charged when received and charging was completed overnight. I cannot comment on durability, but the UPS is now functional. Presently, I would say that it is a good value for the money. I have to note that this was the second battery that I received. The first one was clearly already RMAed by another customer. A replacement battery was received quickly.

**UPDATE**MightyMax contacted me via email to let me know that " (you) had selected FBA option, which means Amazon has fulfilled your order directly from their facilities and they are responsible for all customer service issues". They provided an Amazon 800 phone number. I called the number provided and spoke with and Amazon representative who promptly refunded my money. As battery is damaged it will go to local battery recycling center.**Original post:**I received the battery in a corrugated Amazon shipping box, which was undamaged. The battery product packaging is also a corrugated box, and is dented on two 'bottom corners'. The battery is likewise is damaged/dented on two bottom corners, making it unsafe/unusable. After 5 days & 3 emails requesting product 'support' (i.e. a replacement) on the MightyMax website (which is the only support option Amazon provides), and also replying unfavorably to a 'how did we do on your product support' request from Amazon, I've yet to hear from the supplier. So as far as a review: Features - dunno stars. Easy to Install - dunno stars. Value for money - 0 stars (so far). 0 stars (so far) for the entire product support process from both Amazon and Might Max.

Looks great, but now I know it will not work for APC, Model BE600M1. Just a little too big to fit in the slot. They have a chart showing dimensions, so it was my fault for not looking. I thought I saw in a comment that it would work, but it won't!

Perfect replacement for my cyberforce battery backup. Cost was excellent and very simple to install.

Fit perfectly. Powered up my UPS! Seems to work great. I've purchased this brand before and have had good use of them.

Battery received was not as fresh as one would expect. After a full charge it measured less voltage than a one year old battery from the same manufacturer. The new battery measured 13.24 volts, while the one year old battery measured 13.74 volts. This one will never last as long. Reaching out to Mighty Max that is the manufacturer/distributor of the battery was essentially pointless. They said deal with Amazon and send a spec sheet in answer to my question of why the two batteries were so different. My local fire and alarm supply company that sells a ton of batteries-but not this voltage and amp-hour combination, says my voltage results means the battery had been around a while and was not optimally fresh.+