NP12-5Ah F2, 6-FM-5 12 V 5Ah Rechargeable AGM Battery Replacement Battery for Security System, Garage Door, Emergency Lighting, Electronic Scale, Electric Toy

I have a battery backup (UPS) on nearly everything in the house that I consider critical (WiFi routers, TVs, and computers). They work a long time, but rather than throwing them out when they fail, I figured out that I can just change the batteries. Also, in my Security control box.Half the price of local battery stores.

This is the replacement size for a back up house alarm system - to allow both operation and very loud alarm to operate even when electricity is off. Battery has a quality feel with contact that exactly match the OEM connectors. I also like that you can recycle this battery easily at Lowe's/Home Depot. If you need this size, this is certainly a battery source you should consider.

Well, first, it is very heavy. Had to have assistance because of it being so heavy. However got it installed. Works fine. It is being used for my Security System. Was easy to install. Should last a long time.

A pair of these are replacing batteries of identical specs that provide the uninterruptible part of our desktop computer's AC power supply. The previous brand was suppose to last 3+ years but expired after just over 2 years of service. From the voltage on these NPP batteries out of the box and through a couple discharge/charge cycles, they appear to be quite fresh with respect to how long they may have been sitting on the shelf since manufacture. Under equal loading and recharge in series, they maintained comparable voltage to each other within less than one-tenth of a volt with minimal IR sag from internal cell resistance. Hopefully, they will maintain this performance for 3+ years that the batteries of another brand that they replaced could not.

Perfect fit in APC Network 40 (BN4001). This is a hard to find battery (2 inches thick compared to most popular 2-3/4", utilized on the older 550-600 APC units). Battery was very competitive, and has the F2 terminals. The APC BN4001 is lower capacity (450VA) compared to the most popular older APC units (550-600VA). This battery is 5mAH, compared to 8 or 9 mAH for the higher output units. For small home routers, switches and plugged-in laptops, this smaller size is well suited. Spending $40-$60 for an APC branded battery makes little sense for a unit that sold new for under US $40 several years ago.

I have tried different brands of this size. These batteries have been the longest lasting of all of them for a patient ceiling lift.

I needed to replace the batteries in my APC BGE70 and my Cyberpower 650VA. Both use the same size battery so I saw the dimensions of this matched up so I thought I'd take a chance and buy it.For the BGE the 5Ah is probably more than the original OEM battery, for the CP I think its a bit less because the original is the cps5.5-12 battery which is supposedly 5.5 Ah.This thing is soooo much cheaper than the replacement batteries for those devices. For the APC, the RBC153 Battery is $30-40! Sam,e for the CPS5.5, like $37. For that price I was able to get 2 of these!!Its only been a day, will see how it holds up after 6 months or a year. Keeping fingers crossed.

This was listed as, or showed up as, a replacement for a 4.5ah battery. This was just slightly too large. I modified the space it was to occupy to make it fit. Otherwise I would have returned it. Battery terminals were correct and inseams to function as expected.