Amazon.com Product Review
Energizer Ultimate Lithium Batteries
Energizer Ultimate Lithium batteries offer the longest lasting power for your high-tech devices. This dependable, light-weight battery offers the latest lithium battery technology that's proven to be the world's longest lasting AA and AAA batteries in high-tech devices.
Made from the lightest metal known, Energizer Ultimate Lithium differs from traditional alkaline batteries in its construction and chemistry. It is this unique composition that is able to meet the needs of today's high-draining devices and provide the longest lasting power available. Energizer Ultimate Lithium batteries also produce up to 8X less waste in digital cameras than traditional alkaline batteries.
Energizer Ultimate Lithium is the product that powers the devices that make your life easier and more fun. Digital cameras to capture memories, a handheld GPS device to find your way, and everything in between.
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Performs in extreme temperatures from -40° F to 140° F:
Great for outdoor use |
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Leak resistant construction:
Assurance for expensive electronics |
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Weigh 1/3 less than ordinary alkaline AA and AAA batteries:
Ideal for traveling and portability |
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Up to 15 years shelf life:
AA and AAA cells |
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| Available in multiple cell sizes to power all your high-draining devices. |
 Energizer Ultimate Lithium AA
- Lasts up to 8X longer* in digital cameras
- Lasts up to 7 hours longer** in handheld GPS devices
- Lasts up to 3.5 hours longer** in CD Players
- Lasts up to 2X longer*** in photo flashes
*vs. Energizer MAX. Results vary by camera.
**vs. Energizer MAX. AA only. Results vary by device.
***vs. leading ordinary alkaline. AA only. Results vary by device.
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 Energizer Ultimate Lithium AAA
- Lasts up to 8X longer* in digital cameras
- Lasts up to 6 hours longer** in handheld GPS devices
- Lasts up to 5.5 hours longer*** in MP3 Players
*vs. Energizer MAX. Results vary by camera.
**vs Energizer MAX. AAA only. Results vary by device.
***vs. Energizer MAX based on proposed industry standard tests. AAA only.
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Reusable Power |
High Tech |
Everyday Life |
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Energizer Recharge:
- 2300 mAh holds charge longer*
- AA comes precharged for immediate use
*vs. Energizer AA 2450 mAh based on 12 month charge retention |
Ideal for use in your household devices, such as digital cameras, toys, remote controls, flashlights, and portable audio players |
Available Cell Sizes: |
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Energizer Advanced Lithium:
- Lasts 30% longer* in handheld games, AA only
- Lasts up to 4X longer* in digital cameras
- Up to 10 years shelf life
*vs. Energizer Max. Results vary by device |
Ideal for use in digital cameras, handheld GPS devices, photo flashes and video-game accessories |
Available Cell Sizes: |
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Energizer Ultimate Lithium:- Lasts up to 8X longer* in digital cameras
- Performs in extreme temperatures from -40 degrees F to 140 degrees F
- Up to 15 years shelf life
* vs. Energizer Max. Results vary by camera |
Ideal for use in digital cameras, handheld GPS devices, photo flashes and video-game accessories |
Available Cell Sizes: |
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Energizer Max:- Makers of the World's 1st* Zero Mercury alkaline battery
- Up to 7 years of shelf life for AA, AAA, C, and D and up to 5 years of shelf life for 9V
*Commercially available since 1991 |
Ideal for the devices you use every day--from toys to video game controllers to flashlights |
Available Cell Sizes: |
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(C) 2011 Energizer. Energizer, Energizer Bunny design, card and label graphics and shape, and other marks are trademarks of Energizer.Customer Reviews
Average Customer Review
(204 customer reviews) 363 of 369 people found the following review helpful
Match those batteries with the correct application for best results,
January 1, 2008 NLee the Engineer (Nashua, NH) - See all my reviews
This review is from: Energizer Ultimate L91BP-4 Lithium AA Batteries, Pack of 4 Batteries (Electronics)
The Energizer L91 Lithium AA cell is a fantastic power source. For high-drain applications, it offers great advantages over ordinary alkaline cell and rechargeable NiMH cell. However, it is also very expensive as a disposable battery. So it is important to recognize the strength of L91, and use it only in applications that give you the best results. Otherwise you'll be wasting your money.
According to data sheet published by Energizer, the capacity of the Lithium AA cell (L91) is 3000mAh. This number remains nearly constant with load current. In comparison, the ordinary Alkaline battery (such as the Energizer E91 AA) is rated as 2800mAh, but only at a very light load of 25mA. At a heavy load of 1000mA (typical for a digital camera or flash unit), its capacity drops to below 1000mAh. This number gets even worse at low...Read more
141 of 147 people found the following review helpful
Lithium AA batteries are NOT the same as Lithium-ion Rechargeable,
January 1, 2008 NLee the Engineer (Nashua, NH) - See all my reviews
This review is from: Energizer L91BP-8 Lithium AA Photo Battery (8-Pack) (Electronics)
[Updated on June 8, 2011]
Note: Amazon has moved two of my previous reviews (one for Energizer Lithium AA 4-pack, one for 8-pack) under one page. Therefore I have to update my review to add some new information - or else I look like a fool who says the same thing twice.
=== New information follows ===
There seems to be some confusion about those Energizer Lithium AA batteries. Several people have bought those batteries under the assumption that they are rechargeable, only to be disappointed later.
Despite the name 'Lithium', those Energizer Lithium AA batteries are very different from the commonly known 'Lithium-ion' rechargeable batteries. Namely:
- They are single-use batteries (NOT rechargeable like Li-ion)
- The terminal voltage for each cell is around 1.65V (compared to around 3.7V for each Li-ion rechargeable cell)
The two types of batteries are not compatible. If your camera accepts AA cells, then you should use...Read more
73 of 76 people found the following review helpful
Match those batteries with the correct application for best result,
July 21, 2008 NLee the Engineer (Nashua, NH) - See all my reviews
This review is from: Energizer Ultimate L92BP-4 Lithium AAA Battery 4 Pack (Electronics)
The Energizer L92 Lithium AAA cell is a fantastic power source. For high-drain applications, it offers great advantages over ordinary alkaline cell and rechargeable NiMH cell. However, it is also very expensive as a disposable battery. So it is important to recognize the strength of L92, and use it only in applications that give you the best results. Otherwise you'll be wasting your money.
According to data sheet published by Energizer, the capacity of this Lithium AAA cell (L92) is 1200mAh. This number remains nearly constant with load current. In comparison, the ordinary Alkaline battery (such as the Energizer E92) is also rated as 1200mAh, but only at a very light load of 25mA. At a heavy load of 500mA (typical for a P&S digital camera), its capacity is reduced to about one-third. The difference gets even greater at low temperature. At zero degree C and 500mA load, the L92 can provide about seven times more energy compared to the E92. This is where the marketing claim of...Read more
