Customer Reviews for Energizer Ultimate 9V Lithium Battery (L522BP)
Energizer Ultimate 9V Lithium Battery (L522BP) is In-store only
Item # : 1680204
Model # : L522BP
- 1-pack of Energizer Ultimate Lithium [9V] batteries
- Our Longest-Lasting 9V Battery
Price is $17.39
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164 reviews
Most helpful positive review
Posted Apr 13, 2026
So many uses!
I trust Energizer's Ultimate Lithium 9V Batteries and use them in our smoke detectors, son's toys and appliances around our home. They are reliable, affordable, and last a long time.
michelleR
Reviewed at:
influenster.com
Posted Apr 13, 2026
So many uses!
I trust Energizer's Ultimate Lithium 9V Batteries and use them in our smoke detectors, son's toys and appliances around our home. They are reliable, affordable, and last a long time.
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VictoriaC
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Posted Mar 23, 2026
Our house Smoke Alarms ONLY battery
This is the ONLY batteries we use in our household Smoke Detectors
Guess you’d say that We trust our life with it ….. our lives are in the bunnies hands. Energizes you can trust your life with them.
Guess you’d say that We trust our life with it ….. our lives are in the bunnies hands. Energizes you can trust your life with them.
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MelissaP
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Posted Mar 16, 2026
Great for smoke detectors
I have these in all of my smoke detectors, and they are going strong! They have great power. The size and weight are similar to other 9V batteries. The packaging was easy for me to open.
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MartinaT
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Posted Mar 15, 2026
They last!
They last so long! I can trust in energizer for all of my needs may it be my smoke detectors to my child’s toys! The don’t drain as quick as other brands.
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AshleyB
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influenster.com
Posted Mar 5, 2026
Great
Great battery. Consistency is good and no leakage. Great to have for the little race cars your kids like to play with. Absolutely love this brand!
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TaniaR
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Posted Feb 27, 2026
Good
Energizer 9v batteries worked great in mi kids toy long lasting reliable power. Held up well no leaks or issues.Good value for the price would buy again
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SaraKaitlynC
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influenster.com
Posted Feb 26, 2026
Long lasting
The energizer lithium 9v batteries have been a game changer for my homes outdoor cameras. Before switching to lithium batteries i was having to change the batteries so frequent. Now I only have to worry about them once a year.
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tornikek_9918
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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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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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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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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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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
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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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