Energizer Ultimate Lithium 9V Batteries
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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)
4.7 out of 5 stars with 198 reviews
53% would recommend
13 recommendations
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
5 out of 5 stars
Thumbs up graphic, would recommend
7 January, 2025Verified purchase
Delivered to the back of my building and package sitting outside door!
They delivered to the back of my building and outside. People can just crab it. Deliveries need to go to the FRONT of building
1 out of 5 stars
Thumbs down graphic, would not recommend
15 November, 2024Verified purchase
$17? Ridiculous.
$17.49 for a single battery is an absolute crime. It was misplaced in the store and labeled as $6 (which still seems crazy for a single battery).
1 reply from Energizer Team team - 1 year ago
Thank you for sharing your feedback, Caroline. Pricing of our products are determined by the individual stores that carry our items. We do not directly set or control the prices at which our products are sold. Pricing will vary through different retailers. Thank you for your understanding, and we appreciate your continued support. If you have any further questions or concerns, please contact us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Energizer Consumer Services
5 out of 5 stars
Thumbs up graphic, would recommend
26 May, 2024Verified purchase
Battery
Lithium, no leak , energizer well made battery. No problems with them. Use in outdoor battery products.
1 out of 5 stars
Thumbs down graphic, would not recommend
3 April, 2024
Stay away
Be warned Energizer batteries absolutely do NOT honor their warranty!! I threw away 8 batteries and told them as such, they asked for pictures, then more pictures, then more pictures, i sent 7 and they still asked for more. I told them I'm happy to send the bad batteries not throw away to them, just send me a prepaid sticker, UPS, FedEx, USPS either one, all they did was asked for more pictures. This is a joke to them. Stay away. I'm trying Amazon batteries, so far so good and much, much cheaper. Any class action attorneys? Contact me.
1 reply from Energizer Team team - 2 years ago
Thank you for submitting your review. We apologize for the inconvenience caused and understand your frustration. We value our consumers’ experiences; we have documented your feedback so upper management can take into consideration. Please reach out to us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Our team at Energizer Consumer Services is ready to assist you.
5 out of 5 stars
Thumbs up graphic, would recommend
23 December, 2023Verified purchase
Next time have it shipped!
The in store pick-up experience was absolutely horrible.
1 out of 5 stars
Thumbs down graphic, would not recommend
3 December, 2023Verified purchase
Too big
The 9 volt version is bigger than the alkaline version and the battery cover on garage door keypad would not fit
1 reply from Energizer Team team - 2 years ago
Thank you for submitting your review. We apologize for the inconvenience caused. Please reach out to us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Energizer Consumer Services
1 out of 5 stars
Thumbs down graphic, would not recommend
23 March, 2023
Paid $4 more to buy in store
What gives. Stopped by store, walked all over looking for batteries, after getting home noticed these are $4 less if you order online and drive up pickup
5 out of 5 stars
23 February, 2021
originally posted on Energizer Brands
Long lasting!
[This review was collected as part of a promotion.] I use a TENS unit for back pain. When I have a flare up, it’s not uncommon to kill a battery in a single day. I was very pleased that this battery lasted almost 4 full days before I had to change it. These will be my go to batteries for my TENS unit going forward.
5 out of 5 stars
20 November, 2020
originally posted on Energizer Brands
The Best!
[This review was collected as part of a promotion.] The battery out performs any other 9V battery you will find on the market! For those of you that haven’t having to replace your fire alarm more than once a year, look no future. This battery exceeds expectation!