POWEROWL High Capacity 9V Batteries 8 Pack, Alkaline 9 Volt Battery 6LR61 for Smoke Detector Fire Alarm and More Devices

So far, these batteries seem to work very well. They were "reviewed and tested by Project Farm via Youtube and they outlasted most every other 9-volt battery during these tests.

Bought these to replace the battery in my cooking temp gauge. For the price, they worked perfectly. Now I can track my temps instead of using my old method, which was mostly guessing and hoping dinner didn’t become a science experiment. So far, so good. I’ll update if they quit before the chicken does.

Very good batteries and price was amazing. Would recommend!’

they last a long time

Seemed to be good batteries. Arrived very quickly!

This is 2026. It's valid until 2035. I like this and it was affordable choice.

Great sale on these batteries and they work very well in our smoke detectors

I bought these for my smoke detectors prematurely, not realizing these were Alkaline chemistry. If you want to buy batteries for smoke detectors, I would suggest Lithium chemistry instead because even though Lithium is 5x - 6x more expensive, they will last 5x - 10x longer then Alkaline. Also, some detectors are AC powered with a battery backup and some are running off of battery only. Battery-only detectors will use up battery power faster than AC-powered detectors. Here are the reasons to consider lithium instead: - will last 5x - 10x longer. - better for hard-to-reach smoke or CO detectors or if you have many of them in your home to change - voltage stays very stable until near the end of life, then drops sharply. With alkaline, the voltage gradually drops over time Another tip is to change all your detector batteries at the same time, because they typically will need replacement at the same time and you don't want to be getting out your ladder at different times.

Great batteries for the price

So far so good. Has lasted about 6 months without having to change the battery.

good

Well, it's to decide that these did not have any sort of date for production code on them, which is expected in this day and age, but that said, so far they did a quick test on several of the batteries when they arrived. They seemed to be very good. Popped them into a couple of the smoke detectors here in the house and a few other uses. No complaints so far, but we shall see about the long term results. That's it. Grabbed them on sale with a coupon and price wise they were very good.

Went into smoke detector so it is working so far. Will see if it lasts a year.