ExpertPower EXP1290-12V 9AH SLA AGM Rechargeable 12V Battery for Ride on Toys, APC Backup UPS Battery Replacement, 12 Volt Batteries for Alarm, Replaces UB1290 CP1290 40748, F2 Terminals

Battery was dead in my bluetooth speaker. This was an exact fit and was charged up. Works great.

My APC UPS-900 surge protector and battery backup has worked reliably for about 5 years, which is right in line with the typical 3–5 year battery life expectancy for units like this. It has kept my PC, modem, and router running through short outages, and also provides protection for sensitive electronics during surges. In longer outages, it has even powered a cordless phone and VOIP system for overnight operation. Recently, I noticed the backup time had dropped significantly—down to only a few minutes—indicating the battery was at end of life. I was initially unsure about replacing the battery myself, but the process turned out to be very straightforward. After installation, the unit is operating like new again. For a fraction of the cost of replacing the entire UPS, this was a very cost-effective repair. Given how simple the swap was and how well it restored performance, I would absolutely recommend replacing the battery rather than replacing the whole unit if you encounter similar symptoms.

Battery is direct replacement for a Monster 360 Bluetooth speaker. Fully charged for 7 hours and device works again.

I've had my Cyberpower 1500PFCLCD UPS for about 4 years now. I noticed that despite no indicated internal battery problems, the UPS would fail during brownouts or other equipment being turned on. It did not use to do that. To validate, when I have my UPS connected to the wall (with zero loads plugged into it) and I disconnect the AC mains from the UPS, the unit would insta-power off instead of staying on (and running from battery power). This is the classic symptom of a dead internal battery! Anyways, Replacing the battery was straightforward. I picked up a pair of these Expertpower EXP1290's instead of shelling out more than double for the Cyberpower (supposedly) original battery. In reality, the 'original' batteries are Leoch DJW12-9.0's. These batteries arrived about 3/4 charged (~12.74 VOC), in a well protected package. Delivery was quick (2 days). After replacement, the UPS now behaves normally and correctly stays on / runs from battery when it's disconnected. No error messages or other silliness. Also, for what it's worth these terminals on this battery actually fit the internal connectors 'better' than the original. Your milege may vary on that tho, I'm sure it's game of sub-millimeters. While I cant yet confirm if these batteries will last as long as the original; their value is spectacular when compared to the original batteries. Operation looks good. I will update this review in the next few months if anything untowards occurs -- which I doubt. Highly recommended!

This battery was used in a gas scooter for starting. It is now a year old and the starter barely turned. The battery voltage looked good but fell to 9V under load, so I bought a new (different) battery. However, it did no better, so the battery wasn't the problem. I have hads a lot of batteries like this one fail a lot sooner, so I am happy with this battery manufacturer and would recommend them.

The battery was easy to install and started working right away. It holds a charge well and provides consistent performance during power outages. The build quality feels solid, and it’s completely maintenance-free, which is a big plus.

When Craftsman designed their Battery Start Lawnmower in the 1990's, they supplied a $90.00 small battery pack to start it with. It was 6 small D sized NiCad batteries inside a box that was used to start the mower with. The previous owner didn't want to spend $90.00 on a replacement battery that would go bad in a short time. Over the years the NiCad batteries deteriorated, and that is why I got my lawnmower for free from the sidewalk in my neighborhood. I modified the battery chamber to accept a small Walmart small lead acid battery, but they too seem to go bad in 2-3 years. I bought this 12 volt 9 Ah LiFePo battery to see if it will last longer than 2-3 years. It starts my mower much better than the Walmart lead acid battery, and now I have a fully functional 30+ year old lawnmower again. The lawnmower magneto recharges the battery when it is running, and I haven't had to charge the new LiFePo battery in between uses of the lawnmower at all. The onboard BMS system inside the battery manages the charging routine when the mower is running and it seems to recharge it well. Hopefully this battery will make my vintage lawnmower work for me for many more years. I am building a padded steel box to secure this new LiFePo battery to the mower deck because it is too large to go into the original small battery compartment of the mower deck. Stay tuned to see just how long this new battery technology battery lasts, but for now it is working very well.

As expected and received quickly. I purchased several of this brand and I’m happy with them. Recently I received 3 of the 9 AH batteries. The first two were at 12.90 volts and accepted 1.6 ah each to finish charging per the manufacturer instructions. The third was at 12.99 volts and accepted .6 AH to be fully charged. It appears an effort is being made to maintain these and send them out at the very least with a quick charge on them. I do my part fully charging the Expert Power batteries per the recommendations every cycle and these are capable of lasting to expectation especially given the reasonable price.