Customer reviews from Energizer Brands
Energizer - Ultimate Lithium 9-Volt 9 V Battery 2 pk
Average customer rating
4.9
(186 Reviews)
Rating breakdown 186 reviews
5 Stars
167
4 Stars
18
3 Stars
1
2 Stars
0
1 Star
0
99%of customers recommend this product.
(
137 out of
138)
Customer Reviews for Energizer - Ultimate Lithium 9-Volt 9 V Battery 2 pk
Customer Rating
5
Long lasting
on February 26, 2026
Posted by: SaraKaitlynC
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.
Written by a customer while visiting influenster.com
Customer Rating
5
Extremely long-lasting 9V batteries ideal for safe
on January 24, 2026
Posted by: tornikek_9918
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-term use.
Written by a customer while visiting influenster.com
Customer Rating
5
Great value
on January 10, 2026
Posted by: marianys2_7690
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!
Written by a customer while visiting influenster.com
Customer Rating
5
Top‑tier in terms of performance
on October 21, 2025
Posted by: thuta165
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 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 than standard alkaline batteries.
Written by a customer while visiting influenster.com
Customer Rating
5
Best battery ive used by far for 9v
on October 17, 2025
Posted by: dand39
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.
Written by a customer while visiting influenster.com
Customer Rating
5
Amazing product
on September 25, 2025
Posted by: hemantk2_9185
Energizer Ultimate Lithium batteries impress with wide device compatibility, eco-friendlier packaging, excellent durability, and strong value for money.
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting and great price
on August 16, 2025
Posted by: ryanh18_1123
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.
Written by a customer while visiting influenster.com
Customer Rating
5
It’s worth Buying
on July 26, 2025
Posted by: mariagorettic_9293
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.
Written by a customer while visiting influenster.com