Customer reviews from Energizer Brands
Energizer - Ultimate Lithium 9-Volt 9 V Battery 2 pk
Average customer rating
4.9
(165 Reviews)
Rating breakdown 165 reviews
5 Stars
147
4 Stars
17
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
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
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
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
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
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 for smoke detectors
on March 16, 2026
Posted by: MelissaP
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.
Written by a customer while visiting influenster.com
Customer Rating
5
Our house Smoke Alarms ONLY battery
on March 23, 2026
Posted by: VictoriaC
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.
Written by a customer while visiting influenster.com
Customer Rating
5
Works great
on April 3, 2026
Posted by: brendab150
I have used the energizer lithium 9 V batteries for years in my radio, and it works for a very long time. It’s very lightweight and never gets overheated like some batteries do
Written by a customer while visiting influenster.com