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
Build to last
on June 12, 2026
Posted by: DestinyJ
These batteries are top notch. The lithium line is the best. They always last long. They’re easy to install. I don’t notice a difference in temperature. There just built to last.
Written by a customer while visiting influenster.com
Customer Rating
5
Energized again
on June 11, 2026
Posted by: JasonM
Once again Energizer is a battery name you can trust. I’ve used their Ultimate lithium line in several different sizes for many different devices. There are more and more devices that require lithium batteries. This is my go to brand. I found the 9v to be no different. It doesn’t let me down. It lasts a long time and the price isn’t bad either. The package is easy to open as well.
Written by a customer while visiting influenster.com
Customer Rating
5
Trustworthy batteries used in all of my smoke detectors!!
on June 4, 2026
Posted by: ashleyt914
Trustworthy batteries used in all of my smoke detectors!! Good size lightweight no leakage or drainage! My go to for many of my battery operated devices!! Highly recommended!!
Written by a customer while visiting influenster.com
Customer Rating
5
Long-lasting and reliable batteries that deliver strong performance for everyday devices.
on May 23, 2026
Posted by: LaritzaF
This battery lasts a long time and works really well in devices that need strong power. I like that it feels reliable and doesn’t overheat easily. Great for smoke detectors, electronics, and other household devices. The packaging is simple and easy to open, and I haven’t had any leakage problems so far.
Written by a customer while visiting influenster.com
Customer Rating
5
Long Lasting
on May 21, 2026
Posted by: GraceM
These 9V batteries deliver, strong consistent power with excellent performance and a long lasting charge. They store well and are easy to dispose of through battery recycling programs.
Written by a customer while visiting influenster.com
Customer Rating
5
Excellent and reliable battery!!
on May 20, 2026
Posted by: AngelaP
This is my go to battery for my smoke alarms in my home. I have 4 alarms in my home and even if I miss my mid-year change out they are still charged and protecting my home.
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting, top of the line
on April 29, 2026
Posted by: TrentR
Energizer is great and their ultimate lithium batteries are top notch! They last so long I forget when I changes my fire alarm batteries last! ;p
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting battery...
on April 27, 2026
Posted by: JohnP
These Energizer batteries really do keep on going and going. I have these in many different electronics around my home and I really don't need to replace them very often, they don't seem to drain very quickly.
Written by a customer while visiting influenster.com