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  • Energizer L91BP-8 Ultimate Lithium AA Battery (8-Count)
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Energizer L91BP-8 Ultimate Lithium AA Battery (8-Count)

from Energizer
1,736 customer reviews
| 42 answered questions

List Price: $18.99
Price: $13.19 ($1.65 / Count) & FREE Shipping on orders over $35. Details
You Save: $5.80 (31%)
In Stock.
Ships from and sold by Amazon.com.
AA
8
  • Last up to 9x longer in digital cameras (versus Energizer MAX results vary by camera)
  • Weigh 1/3 less than standard alkaline batteries
  • Perform in extreme temperatures from -40 Degree F to 140 Degree F
  • Hold power for 20 years when not in use
  • Not rechargeable
102 new from $8.69
Special Shipping Information: Due to federal and international regulations, this product can only be shipped within the 50 states.


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$13.19 ($1.65 / Count) & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

Energizer L91BP-8 Ultimate Lithium AA Battery (8-Count) + SanDisk 32GB Class 4 SDHC Memory Card, Frustration-Free Packaging- SDSDB-032G-AFFP (Label May Change) + Master Lock 8418KADCAM-TMB Python Adjustable Locking Cable, Braided Steel, Camo Colored, 6-Feet x 5/16-inch
Price for all three: $45.24

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Product Description

Size:AA  |  Unit Count:8

8-packCardboard card for peg hook re-closeable package Lasts up to 5 times longer than alkaline batteries in digital cameras and up to 3 times longer in other cameras and flash applications


Product Details

Size: AA | Unit Count: 8
  • Product Dimensions: 3.7 x 1.2 x 4.5 inches ; 4.8 ounces
  • Shipping Weight: 4 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: USA
  • ASIN: B0000DC4EL
  • UPC: 039800062888
  • Item model number: L91BP-8
  • Batteries 8 Lithium Metal batteries required. (included)
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (1,736 customer reviews)
  • Amazon Best Sellers Rank: #295 in Health & Personal Care (See Top 100 in Health & Personal Care)
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From the Manufacturer

Ultimate Lithium Family

Energizer Ultimate Lithium Batteries

For the devices you can’t live without, rely on the latest Energizer Ultimate Lithium Batteries – proven to be the world’s longest-lasting AA and AAA batteries in high-tech devices. Also available in 9V.

From extreme power, to extreme conditions, Ultimate Lithium does it all

World’s longest-lasting AAA battery in high-tech devices

Last up to 9x longer in digital cameras vs. Energizer MAX, (results vary by camera)

Performance in extreme temperatures

Can provide power in temps from -40°F to 140°F (vs. Alkaline)

Holds power for 20 years in storage

Hi-Tech power when you need it

High Performance Battery

  • World’s longest-lasting AA and AAA battery
  • Last up to 9x longer
  • Performs in extreme temperatures
  • Holds power for 20 years in storage
  • Leak-proof construction

Energizer Ultimate Lithium Batteries

Energizer Ultimate Lithium AA-8

Energizer Ultimate Lithium AA-4

Energizer Ultimate Lithium AAA-4

Energizer Ultimate Lithium 9V-1


Important Information

Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Bulb Voltage
1.5 Volts

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

837 of 856 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on January 1, 2008
Size: AAUnit Count: 4
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 temperature. At zero degree C and 1000mA load, the L91 can provide about seven times more energy compared to the E91. This is where the marketing claim of "Last up to 7 times longer" comes from.

When used in a digital camera at room temperature of 25 degree C, the L91 is more likely to last 3-4 times longer than alkaline. This is enough to justify its price, which is also around 3-4 times higher than alkaline. However, in low-drain applications (such as smoke detector, wireless mouse or remote control) alkaline cells will last just as long at a fraction of the cost.

The L91 also contains much higher energy when compared to an ordinary rechargeable NiMH cell such as the Energizer NH15-2500.
Read more ›
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277 of 291 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on January 1, 2008
Size: AAUnit Count: 8
[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 those Lithium AA cells and not Li-ion rechargeable battery. Alternatively, you may explore other rechargeable battery options, namely:

1. Low-self-discharge NiMH AA cells, such as Sanyo Eneloop or Sony Cycle Pre-Charged. Those have a operating voltage of 1.25V per cell, so some cameras (especially those that use only two cells) may not operate correctly on those.

2. Nickel-Zinc rechargeable such as PowerGenix AA.
Read more ›
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147 of 162 people found the following review helpful By Rebecca Hatfield on November 22, 2003
Size: AAUnit Count: 8
As a student who is very involved in clubs and organizations, I always want to have my digital camera at hand to capture unforgettable moments with my friends or the places that I visit.

When it comes to cameras, digital cameras are the worst with battery power. When I first got my camera, the pair of double A batteries that came with it only lasted an hour. I then bought a brand new pack later, and those also were unusable within 60 minutes.

This was going to be a major problem. I bought a pack of special Olympus Lithium batteries (very expensive and hard to find at the time) which lasted, at max, two and a half weeks.

Finally, I found a pack of Energizer Lithium batteries. I stuck them in my camera and expected them to last about five days. To my surprise, this pack of four batteries lasted me a whole month of road trips and hang-outs.

These batteries are long-lasting, reliable, very light, and inexpensive. I was very satisfied with the performance of these batteries, and I hope this review helped you in your decision or search.
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136 of 150 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on July 21, 2008
Size: AAAUnit Count: 4
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 "Last up to 7 times longer" comes from.

When used in a digital camera at room temperature of 25 degree C, the L92 is more likely to last 3-4 times longer than alkaline. This is enough to justify its price, which is also around 3-4 times higher than alkaline. However, in low-drain applications (such as smoke detector, wireless mouse or remote control) alkaline cells will last just as long at a fraction of the cost.

The L92 also contains much higher energy when compared to rechargeable NiMH cell such as the Sanyo Eneloop AAA.
Read more ›
10 Comments Was this review helpful to you? Yes No Sending feedback...
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Most Recent Customer Reviews

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Energizer L91BP-8 Ultimate Lithium AA Battery (8-Count)
This item: Energizer L91BP-8 Ultimate Lithium AA Battery (8-Count)
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