SigmasTek SP12-9 - 12V 9AH F2 SLA Battery - Replaces: Universal Power UB1290 (40748), UB1280HR (D5785), B&B Battery BP8-12, HR9-12, Vision CP1290, Yuasa NP9-12

The four I bought worked great in my APC SMX1500RM2U. It fired right up and read the batteries at 100%. I'll revise if I have any problems long term.

Our household electronics UPS devices get a workout from frequent power outages. That means their batteries get discharged and recharged often. That has direct effect on battery life. These have help up well..

I received 2 1500W APC uninterruptible power supplies with dead batteries for free. I replaced the dead batteries and they work like new again. I couldn't find a lower price for these types of batteries. These are a very good value especially if you have Prime. I have had probably 10 or so power flashes/brown outs since setting these up on both of the gaming PCs in my house - including monitors and router/internet, and have had no issues with them turning off. They work exactly as expected. Would recommend.Just as a note, I received the wrong battery type the first time I ordered a pair, but that was resolved very quickly and I received the correct ones only a couple of days later. They did not ask me to return the wrong batteries. The second pair that my sister ordered arrived correctly the first time.

I can't say how well these will hold up, but they are identical in size to the BLP-12 battery used in my UPS.

This battery was exact fit for my tire air and jumper box it works great again, detentions we’re precise.

Very good batteries. I've been using them for a little over a year. They work great. Well worth the money.

Second time i purchased this brand of battery. The first one lasted approximately 3+ years in my Cyberpower 825AVR UPS. These are meant for safe computer shutdown in case of power outage, not to keep it running for any length of time. If you want that, you will need to sped a lot more $$. Cheers!

Purchased battery for Liebert UPS to replace existing. New battery is defective. I have tired it in two devices of the same make and model. Seller first asked that I take the new battery to Auto Zone for testing and take a picture of the meter to determine if it is functioning properly. I live in a rural area and the closest Auto Zone is 25 miles away. They then ask for me to find a neighbor who might have a meter and go thru the same process. I live in a retirement community. The fact that the battery does not work in two devices of the same make and model that were working before is apparently not good enough evidence the battery is defective. Why they don't test their product before sending it to their customers is beyond me. They are refusing to authorize a return or refund.UPDATE: They agreed to deviate from their return/refund policy and send me another battery.