Customer reviews from Energizer Brands
Energizer - Ultimate Lithium 9-Volt 9 V Battery 2 pk
Average customer rating
4.9
(173 Reviews)
Rating breakdown 173 reviews
5 Stars
154
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
They last!
on March 14, 2026
Posted by: MartinaT
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.
Written by a customer while visiting influenster.com
Customer Rating
5
Great
on March 5, 2026
Posted by: ashleyb1138
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!
Written by a customer while visiting influenster.com
Customer Rating
5
Good
on February 27, 2026
Posted by: TaniaR
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
Written by a customer while visiting influenster.com
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