Customer Reviews for Energizer Ultimate 9V Lithium Battery (L522BP)
Energizer Ultimate 9V Lithium Battery (L522BP) is Out of stock
Item # : 1680204
Model # : L522BP
- 1-pack of Energizer Ultimate Lithium [9V] batteries
- Our Longest-Lasting 9V Battery
Price is $16.89
157 reviews
Most helpful positive review
Posted Jan 25, 2026
Extremely long-lasting 9V batteries ideal for safe
Energizer Ultimate Lithium 9V batteries deliver outstanding performance and reliability. I use them in smoke detectors and other critical devices, and they last significantly longer than regular alkaline batteries. They provide consistent power, even in extreme temperatures, and give great peace of mind. A bit more expensive, but absolutely worth it for safety and long-...
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tornikek_9918
Reviewed at:
influenster.com
Posted Jan 25, 2026
Extremely long-lasting 9V batteries ideal for safe
Energizer Ultimate Lithium 9V batteries deliver outstanding performance and reliability. I use them in smoke detectors and other critical devices, and they last significantly longer than regular alkaline batteries. They provide consistent power, even in extreme temperatures, and give great peace of mind. A bit more expensive, but absolutely worth it for safety and long-...
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marianys2_7690
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influenster.com
Posted Jan 10, 2026
Great value
These batteries last much longer than others I’ve tried. I use them in my remote controls and they still work perfectly after weeks. Great value for the price!
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thuta165
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influenster.com
Posted Oct 21, 2025
Top‑tier in terms of performance
Excellent longevity: they last far longer than standard alkaline batteries.
Wide operating temperature range: (‑40 °F to 140 °F or about ‑40 °C to +60 °C), making them suitable for cold weather/outdoor use. 
Lightweight: As lithium primaries, they are lighter than comparable alkaline cells (useful if weight matters). 
But these batteries cost significantly more tha...
Wide operating temperature range: (‑40 °F to 140 °F or about ‑40 °C to +60 °C), making them suitable for cold weather/outdoor use. 
Lightweight: As lithium primaries, they are lighter than comparable alkaline cells (useful if weight matters). 
But these batteries cost significantly more tha...
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dand39
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influenster.com
Posted Oct 18, 2025
Best battery ive used by far for 9v
Energizer lithium batteries are the highest quality and longest lasting batteries ive used. The 9 volt battery isn't used alot anymore but anything I need that has one, I always use this battery. Great cost for the battery life as well.
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hemantk2_9185
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influenster.com
Posted Sep 26, 2025
Amazing product
Energizer Ultimate Lithium batteries impress with wide device compatibility, eco-friendlier packaging, excellent durability, and strong value for money.
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ryanh18_1123
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influenster.com
Posted Aug 16, 2025
Long lasting and great price
Great battery for the price. I use these in my guitars and they last forever. They’re pretty bullet proof! I usually get about 6 months of continuous use out of them before they start to die.
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mariagorettic_9293
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Posted Jul 26, 2025
It’s worth Buying
I like it because the battery lasts a long time, its performance is very good, the packaging is small and it is compatible with several toys, the price is cheap, it is worth buying.
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karenh633_1366
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influenster.com
Posted Jul 1, 2025
Great value battery
Great value for money and does the job it says on the packaging! Lasts for a long time with great performance.. really happy with the battery. Just as compatible as other leading brands
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dixiew1
Reviewed at:
influenster.com
Posted Jun 26, 2025
So important to have
I always make sure I have a few on hand for smoke detectors. Packaging is fine and not horrible to open but lasts long times and I do not have to hear the chirp
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EDILMA C.
Verified Buyer
Posted Dec 3, 2021
Energizer Lithium Battery 9v
The most reasonable price for 10 years Energizer Lithium Battery.
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Sma1881
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Feb 23, 2021
Long lasting!
I use a TENS unit for back pain. When I have a flare up, it’s not uncommon to kill a battery in a single day. I was very pleased that this battery lasted almost 4 full days before I had to change it. These will be my go to batteries for my TENS unit going forward.
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JAMES D.
Verified Buyer
Posted Feb 12, 2021
Keeps on Ticking ( Marching )!!!
Arrived with Major COFFEE order to Save the day and Replace Dead battery in smoke detector!!! Thank You Staples JAD
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TeeRob4
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 20, 2020
The Best!
The battery out performs any other 9V battery you will find on the market! For those of you that haven’t having to replace your fire alarm more than once a year, look no future. This battery exceeds expectation!
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Btrevino
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 15, 2020
Lasting
You can always count on energizer to give you the best and long lasting batteries for your needs. Used this for my smoke detectors. Fit great and last a very long tome before replacing is needed. Definitely batteries you can rely on.
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Shel 80
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 6, 2020
Great energy
I bought these a couple weeks ago. They are great batteries. These were bought to replace the ones we had. They last a long, long time and it’s the brand that my husband trusts for all his battery needs.
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Allie17
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 4, 2020
Long lasting power
I put the Energizer Lithium battery in a light up alarm clock about 6 weeks ago. I’m using it at the sign in desk in my office. A few folks come in very early, before all the lights are on so it’s the perfect use for the clock and battery. The light and time display are nice and bright, just as bright as day one. I will continue to use this type of battery and get more!
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Rachie
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 4, 2020
Great product
This lithium battery works great and I will surely buy more. It’s lasting a very long time and I feel confident it’s going to last a much longer time. I’m very confident with this product and recommend it!
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gblass
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 3, 2020
Ultimate Lithium 9V Batteries
I bought this battery about two months ago to replace my aging battery in my garage door control pad. My previous battery never lasted more than a month. This battery being of the Ultimate variety should last many months, so far going strong.
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Justinakay79
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Nov 2, 2020
Great battery
This is battery seems to last longer than other 9 volt batteries I've used. It powered up the item I used it in and never had any issues. My device seemed to work a little bit better too! I would buy this again.
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Lily17
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Energizer Brands
Posted Oct 28, 2020
Does not disappoint
As always energizer does not disappoint! This is such a great quality product and truly one of the best brands for batteries. Very easy to use, lasts forever, and is always my go to brand. The battery does not die quickly, I do not have to worry about having to buy more. It great to know you can but this in a fire detector and have peace of mind of it being there when n...
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