Customers admire the Advanced Lithium 9V Battery for its long-lasting power, with one customer reporting it lasted for two years. It is also well-suited for smoke alarms, with several customers mentioning its use in this application. While some customers find the price to be high, others believe it is worth the investment for a reliable battery.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 1 Showing 1-20 of 85 reviews
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Amazing product !!!
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I a professional musician at Atlanta scene, and each 3 years I am replacing my guitar's battery. Energizer is the one !
I would recommend this to a friend
Pros mentioned:
Battery life
Cons mentioned:
Price
Rated 5 out of 5 stars
great product
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This reviewer received promo considerations or sweepstakes entry for writing a review.
works great product is long lasting and even has warranty if it does not last !!! since it is being used for smoke detectors it is great to know it will last long and also in the event of failure there will be a replacement or exchange as its a very expensive product
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 4 out of 5 stars
good value for pro std 9v battery
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Needed to replace a 9v battery in equipment for musicians. need dependable battery with good power spread and long life to meet performance needs and avoid failure during performances as well as operating environments. Would recommend this line of Energizers for similar applications.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Energizer "Bunny" Saves the Day
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Our apt inspection was scheduled for just a few days away when our smoke detector started "beeping." I was able to just run over to Best Buy to pick up this Energizer Lithium 9V 10-year battery...exactly what we needed. And we know we can rely on the Energizer brand. We passed the inspection with flying colors and were able to tell the mgr that we'd just replaced the battery with the required 10-year battery.
I would recommend this to a friend
Rated 5 out of 5 stars
longest life on market
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This reviewer received promo considerations or sweepstakes entry for writing a review.
These are expensive 9 volt batteries, but well worth the money. After my fire alarm woke me up at 2-3 am on a work night twice in eight months by beeping at high volume every 5 seconds because the battery was low, I finally caved and spent twice as much for this lithium version. That was three years ago. This time, when the battery drained, it still had enough juice to beep at medium volume once every 30 minutes, giving me time to replace it without having to fumble with a ladder in the middle of the night. I put in one of the old cheap batteries that I still had just until I could get another lithium one. I'll never go back to the regular ones. The lithium batteries cost more up front, but they last so much longer than the "cheaper" batteries that you will always recoup your money over time.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Great for smoke detectors
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This reviewer received promo considerations or sweepstakes entry for writing a review.
The Energizer Advanced Lithium 9V batteries boast a 10 year life for AC-powered smoke detectors.
Although this is more expensive than a typical 9V battery, those typical batteries last about 6-12 months.
At about $8.50 per battery, it costs under $1 per year per smoke detector to keep my family safe.
I've only had this battery installed for a month, so I don't know if it will last the full 10 years. But it only needs to last at least 2 years for me to break even.
Be warned that the battery is very rectangular. Normal 9V batteries have rounded edges, so it may be a tight fit (or might not fit) in your smoke detector. Open only one a a time; if it doesn't fit, at least you can return the unopened ones.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
great battery good for 10 years in smoke detecter
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This reviewer received promo considerations or sweepstakes entry for writing a review.
i am so relieved to know there is this lithium ion battery available and i do not have to wake up in the middle of night to change batteries anymore
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Great so far
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This reviewer received promo considerations or sweepstakes entry for writing a review.
So far its been working as it should. Using the battery on my rode mic for a couple of week.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Works well outside in the cold (0 F)
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Replaced an Alkaline battery with this one in order to have my outdoor Garage Door Opener function in the cold (0 F). Works well.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
great usage life
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This battery lived up to its name used in portable microphone st church and I'm satisfied wiybattery life
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Battery Life
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I would definitely buy this battery again, purchased for our fire detectors and the battery life is GREAT
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Great batteries
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Great batteries got them for my fire alarm,got to have a dependent battery in it at all times
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Great for Fire Alarm
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This reviewer received promo considerations or sweepstakes entry for writing a review.
My fire alarm was beeping for weeks. Got these and like magic I no longer had an issue.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Long lasting
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I use this battery in my smoke detectors because it is long lasting. I am happy with it.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Nice deal
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Need it for firealarm unit. Last time it worked for two years. Hope it will do the same.
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Smoke Detector
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Purchased for replacement in my smoke detector. Works great with no issues.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Does what you want it to
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Long lasting battery at a good price. Not much to think about with this one.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
What can I say
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This reviewer received promo considerations or sweepstakes entry for writing a review.
What can I say it is a Bunny battery proven. It's expiration date was ok
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Exellent lithium
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This reviewer received promo considerations or sweepstakes entry for writing a review.
excellent battery life for our home's co/smoke alarm.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Good batteries for price
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Great batteries for price. Li-ion is the way to go for durability