Energizer Ultimate Lithium 9V Batteries
$17.89
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Guests are saying
The Energizer Ultimate Lithium 9V battery is highly praised for its long-lasting performance, reliability, and suitability for critical devices like smoke detectors and electronic gadgets. Guests appreciate its durability, leak-proof design, and ability to perform in extreme temperatures, making it a trusted choice for various applications.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.8 out of 5 stars with 208 reviews
53% would recommend
13 recommendations
5 out of 5 stars
29 April, 2026
originally posted on influenster.com

Long lasting, top of the line
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
5 out of 5 stars
27 April, 2026
originally posted on influenster.com

Long lasting battery...
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.
4 out of 5 stars
17 April, 2026
originally posted on influenster.com

Last long
The batterys lasted a long time in the controller for my drone and remote control cars i would definitely be buying more batterys for the rest of my toys
5 out of 5 stars
13 April, 2026
originally posted on influenster.com

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.
5 out of 5 stars
3 April, 2026
originally posted on influenster.com

Works great
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
5 out of 5 stars
23 March, 2026
originally posted on influenster.com

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.
5 out of 5 stars
16 March, 2026
originally posted on influenster.com

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.
5 out of 5 stars
15 March, 2026
originally posted on influenster.com

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.
5 out of 5 stars
5 March, 2026
originally posted on influenster.com

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!
5 out of 5 stars
27 February, 2026
originally posted on influenster.com

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
5 out of 5 stars
26 February, 2026
originally posted on influenster.com

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.
5 out of 5 stars
25 January, 2026
originally posted on influenster.com

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-term use.
5 out of 5 stars
10 January, 2026
originally posted on influenster.com

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!
5 out of 5 stars
21 October, 2025
originally posted on influenster.com

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 than standard alkaline batteries.
5 out of 5 stars
18 October, 2025
originally posted on influenster.com

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.
5 out of 5 stars
26 September, 2025
originally posted on influenster.com

Amazing product
Energizer Ultimate Lithium batteries impress with wide device compatibility, eco-friendlier packaging, excellent durability, and strong value for money.
5 out of 5 stars
16 August, 2025
originally posted on influenster.com

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.
5 out of 5 stars
26 July, 2025
originally posted on influenster.com

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.
5 out of 5 stars
1 July, 2025
originally posted on influenster.com

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
5 out of 5 stars
26 June, 2025
originally posted on influenster.com

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