I have used Enegizer batteries in business and industrial moderate and high drain devices for over 40 years. They outperform ALL other alkaline batteries on the American market by a minimum of 3 to 1 service life. Some like the copper top ones are pitiful in comparison! The copper topped ones last about 5 to 7 days in a pager, the Energizers last an average of 3 weeks in same pager! Unless you use Lithium batteries, there is no comparative alkaline battery that even comes close to competing with Energizer.
Verified purchase: Yes | Condition: New
I use these in our smoke detectors and they are good reliable batteries. I use the good name brand and avoid the cheap off brand ones and have never had a problem.
Verified purchase: Yes | Condition: New
The 9 Volt DC Batteries work fine. It's that time of the year when all the Smoke Detector batteries need to be replaced.. Buying a 12 pack is the most cost efficient way I have found to resolve this problem plus have a few in reserve for the unexpected that always seems to pop up when you have used your last battery. .
Verified purchase: Yes | Condition: New
I don’t think there is nothing wrong with the batteries because I hook one up to my multi meter and the voltage was good. However, I think the current output is too low for my first alert smoke detectors. I ended up buying some Duracell and had no problems.
Verified purchase: Yes | Condition: New
I have some freezers that use 9V batteries. These are handy to have on hand. I really don't like having to listen to a freezer beep constantly until I can get to the store to buy a new battery. Thank you.
Verified purchase: Yes | Condition: New
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