Customer Ratings & Reviews

These Energizer MAX 9V batteries deliver long-lasting power, perfect for my smoke detector and other uses. A bit pricey, but worth it for the quality. Highly recommend!

Our 2 new smoke/carbon monoxide detectors require 9V batteries and were not something we normally have around. I was pleased to see the Energizer 2 pack for such a reasonable price for such a dependable brand.

I got these batteries because it was that time of the year to check the fire alarms/ Carbon monoxide detectors and I never buy the cheap batteries when it comes to me and my pet, I like Enegizer batteries they last long and because I was at Best Buy buying something else I pick these up.

Works great in my acoustic electric and great value for total tech memvers

Those batteries are great specially for important items like smoke detectors to use with, trust and durability to keep them on mind

I use these for my acoustic electric guitar and haven’t had to change batteries in months. Best batteries for long term playing.

Batteries were what I needed and what I eventually got. Unfortunately, although I ordered them for 1 hour pickup, when I got to the storem they weren't available. 3 days later after another trip to the store, I finally got what I needed. It's a weird system--- they told me at the store that I'd have to cancel my own order, and since I'd used a rewards certificate to buy the batteries, it wasn't possible to get my rewards back in my account immediately (so I couldn't just walk over to the battery section and get something off the shelf). Pickup was unfortunate as well- I had to wait on the normal checkout line (which was also handling returns) to get my online order. A lot of opportunities for improvement! First, know your inventory and don't say something is available for 1 hour pickup if it isn't. Second, have someone occasionally see if anyone is just picking up an online order so those folks don't have to wait an inordinate amount of time as everyone checks out for something that's already paid for and should be a quick pick-up. Third, empower the store employees to cancel and online order rather than telling the customer to do it him/herself; if the order was using rewards, then immediately credit the rewards back into the account so they can be used on something in-store since you're already there to pick up the item that should be available and isn't. I hope some of these ideas are helpful!

Got these on sale as a total member and you can’t beat it. Thanks Best Buy! Now I can change all of my smoke detector batteries during the day instead of finding “the one” at 2:00 am.

These batteries last longer than the rest. Energizer is my go to battery.

Among the longest lasting 9 volt batteries I've ever used.

Over the years I have tried many brands of 9volt battery in smoke alarms,walky talkies,garage door openers and too many other applications to name,Energizer 9v batteries have not once failed to perform flawlessly, long lasting power and with proper use have never leaked once.

These batteries are good just like Duracell. They hold their charge well and work a long time. I am pleased with my purchased.

Energizer is a great batter. It’s the one I will always pick first.

Batteries are as long lasting as any others IU have used

Last long and does the job ! Used it for my alarm system have yet to replace it but no need so far and had it for months

Always a good purchase when they send you reward dollars

I installed these in my smoke detectors, and they are working

These things last forever. I use it for the smoke alarm and I change them once a year. They still have life in them but just to play it safe I always change them once a year. It's always best to do that because if you wait for the device to beep maybe you say I'll do it tomorrow or you procrastinate with other excuses. I like to do it the way I've been doing it.

Since I haven't had the need to use these batteries yet, I'm hoping that they're as good as the ones that I've bought in the past. One of the Eveready batteries that I bought from Best Buy in the past had a dent in it, but the Burbank store wasn't able to give me any kind of store credit since the time had run out on my receipt. I don't think that any one uses all the batteries that they buy as soon as they get them home.

Battery good, it work good, it make device work. No beeps.