Rayovac High Energy 9V Batteries (1 Pack), Alkaline 9 Volt Batteries

I smoke detector produces random beeps when the battery is just about done. Eventually they become more frequent until the battery is replaced. This did the job. I ordered a couple of 9V batteries as my Carbon Dioxide detector uses these 2 as well as one other item here at home. They work perfect for the need.

Your price was the cheapest of anybody's. I didn't answer the "reliability" question, because I don't know yet, if it will last as long as they say.

they are good to have on hand.

Tossed in my like 10 year old multimeter wasnt sure if it was dead. It lives!

These batteries last a long time. I haven't had to change them in my radio for a while! The packaging is sturdy, and doesn't have too much plastic, and it's easily recyclable.

Cell phones and other electronic gadgets have become a popular way of communicating and sharing data between people in a world of increasingly complex situations where people

power increase when meeded.

Ok batteries they just die kinda fast but they are on the cheaper side of batteries . If on a budget and need something to last then these are good for that

I didn't get the batteries

I just replaced 6 batteries in smoke detectors in November. Here it is Dec 21 and at midnight, of course, one of them was chirping. Sadly I can't trust the rest of them now and will have to go with the actual recommended ones that are imprinted on the detectors themselves. I hadn't noticed that until I purchased the Rayovac ones as I use them in everything else.