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Energizer L91BP-8 Ultimate Lithium AA Batteries (8-Pack)
- 8-pack of Energizer Ultimate Lithium AA batteries
- Energizer Ultimate Lithium is the #1 Longest-Lasting AA Battery
- Leak-proof construction protects the devices you love (based on standard use)
- Powers your most critical devices—ideal for your smart home devices, outdoor surveillance systems, digital cameras, and handheld games
- Holds power up to 20 years in storage for trustworthy backup energy, so you’re always prepared
- Performs in extreme temperatures, from -40F to 140° F, for year-round, indoor and outdoor use
- See why nothing outlasts Energizer in high-tech devices
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Customer Reviews |
4.7 out of 5 stars
46,763
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4.7 out of 5 stars
3,272
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4.7 out of 5 stars
8,446
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4.7 out of 5 stars
23,625
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4.8 out of 5 stars
167,421
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4.5 out of 5 stars
143
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Size | AA, AAA, C, D, 9V | AA, AAA, 9V | AA, AAA, C, D, 9V | AA, AAA | 2032, 2025, 2016, 2450, 2430, 1632, 1620, 1616, 1220, 1216, 1025 | 10, 13, 312, 675 |
Composition | Alkaline | Lithium | NiMH | NiMH | Lithium | Zinc Air |
Shelf Life/ Battery Life | AA, AAA, C, D—up to 10 years; 9V—up to 5 years | AA, AAA—up to 20 years; 9V—up to 10 years | AA, AAA—up to 5 years; C, D, 9V—up to 3 years | AA, AAA—up to 5 years | Up to 8 years | Up to 4 years |
No-Leak Guarantee | Yes—AA, AAA | Yes | Yes—AA, AAA | Yes—AA, AAA | Yes | Yes |
Made with Recycled Batteries | - | - | AA, AAA—made with 4% recycled batteries | AA, AAA—made with 4% recycled batteries | - | |
Best Uses | Everyday low to mid-drain electronics | High-tech and smart devices; suitable for use in extreme temperatures | Everyday devices that require consistent replacement | Frequently used devices that drain batteries fast | Reliable power for heart-rate monitors, glucose monitors, keyless entry, and more | For many types of hearing aid devices including ITC, ITE, BTE, CIC, and Cochlear Implants. |
Product Description
Product Description
1 package of 8 AA lithium batteries - the world's longest-lasting. No weather worries! Superior performance in extreme temperatures from -40 to 140 degrees Fahrenheit. Great choice for outdoor activities in any season. Manufactured in Singapore .
Brand Story
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 4.5 x 3.8 x 1.2 inches; 0.48 ounces
- Item model number : EVEL91BP8
- Batteries : 8 Lithium Metal batteries required. (included)
- Date First Available : September 14, 2004
- Manufacturer : Energizer
- ASIN : B0000DC4EL
- Best Sellers Rank: #153,683 in Health & Household (See Top 100 in Health & Household)
- #506 in AA Batteries
- #6,262 in Sales & Deals
- Customer Reviews:
Important information
Legal Disclaimer
Battery can explode if exposed to fire or high temperature. Keep out of reach of children.
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Bulb Voltage
1 volts
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the value, quality, versatility, weight and durability of the batteries. For example, they mention that it works well in high-tech chargers, is effective and worth the investment. They say it's great for digital cameras and other high-technology devices. They appreciate the weight difference between the batteries and the alkaline variety. Customers are also happy with battery life.
AI-generated from the text of customer reviews
Customers like the battery life of the tool. They say it lasts a really long time, has a much longer shelf life, and provides about 25% more life than normal alkaline batteries. Some customers also mention that the batteries tend to operate for over 2 years in this type of service, and last over a year in very low temperatures. Overall, customers are satisfied with the battery performance.
"I use these in freezer monitoring thermometers. They last over a year in very low temperatures." Read more
"These last a very long time. Great to my miners." Read more
"Great Batteries" Read more
"longer lasting than most works better in extreme temperatures" Read more
Customers like the value of the batteries. They mention that it's a good value considering the number of batteries, and worth the investment for products that are high energy drain. Some are also pleased with the price and performance of these batteries, saying that they're expensive, but worth it for certain applications.
"The Energizer Lithium AA battery 8-packs are great value. I discovered these batteries as they came with my Apple wireless keyboard and mouse...." Read more
"...But I also believe that Ultimate Lithium batteries are worth the extra $$ for their convenience, better shelf life and not having to worry about..." Read more
"...These LAST so much longer!!! Sure they are more expensive, but worth every penny and are the ONLY type of batteries I buy now." Read more
"...scale and only needed 4 batteries, but this was a good price for these lithiums and to try something different.Pros.1...." Read more
Customers are satisfied with the quality of the battery. They mention that it works well in their hi-tech chargers for their iPhone and iPod Touch, and is effective under higher loads. They are also pleased with their performance, saying that they work much better in cameras. Some say that the recovery time is quick, and the batteries die quickly. However, most are happy with their purchase and recommend the product to others.
"...With these lithium batteries, performance remains more consistent right up until they abruptly run out of juice...." Read more
"...Sadly, they'll probably outlast me.When put to use, they perform admirably...." Read more
"...They work absolutely well in my hi-tech chargers for my Iphone and Ipod Touch, without the hassle of charging it to my computer all the time...." Read more
"...cells is static life = 20 years and the fact they work well in very low temperatures so it is a great battery for devices that are normally off with..." Read more
Customers like the durability of the batteries. They say they are lightweight, work in extremely cold temperatures, and have a long shelf life. They also say the batteries can handle freezing temperatures and destroy corrosion. Customers also mention that the performance is not affected by temperature extremes, making them excellent for outdoor weather stations.
"...They also perform much better in cold weather so winter backpacking is a good use of these batteries...." Read more
"...Lithium batteries also work better in extreme temperatures...." Read more
"...4. More power output in cold conditions.5. Much less likely to leak and corrode devices from the inside...." Read more
"...They take the temperature extremes, nature throws at them...." Read more
Customers like the versatility of the battery. They mention it's great for use in their digital camera, trail cams, and other high-tech devices. Customers also say it'll last longer than regular batteries and is excellent for trail cameras. They also say the batteries are great for firefighting flashlights and headlamps with head-mounted battery packs.
"...3. Much lighter weight -- useful when backpacking and many other applications.4. More power output in cold conditions.5...." Read more
"These batteries are perfect for the nest smoke detector" Read more
"...These are especially good in small led flashlights - between the low draw of the LEDs and the long life of the batteries you store/use them for..." Read more
"...well at extremely low temperatures, so they're great for car flashlights/warning lights, outdoor weather sensors, etc.,..." Read more
Customers are satisfied with the weight of the batteries. They mention that the lithium chemistry cells are significantly lighter and more powerful than their alkaline counterparts. Some say that the batteries are fantastic for headlamps with head-mounted.
"...These are 33% lighter than alkaline batteries and they provide about 25% more life in my headlamp with a voltage curve that is much flatter than..." Read more
"...3. Much lighter weight -- useful when backpacking and many other applications.4. More power output in cold conditions.5...." Read more
"...The second great thing about these is that they are incredibly light, with regular batteries weighing almost 50% more, and rechargeable so even more..." Read more
"...These are also significantly lighter than regular alkaline batteries if weight is a consideration for your application...." Read more
Customers are satisfied with the power of the battery. They mention that it provides a higher level of power than the cheap AAs can put out, it's more powerful than standard batteries, and it maximizes the output power of your EDC flashlight. They also say that the batteries are great for high power consumption electronics and that they do better about holding consistent power.
"...of temperature of operation as well, making them a good choice for use in extremes...." Read more
"...using these, new, in powered toothbrushes, and I find it's a lot more powerful and longer lasting...." Read more
"...1. Much higher energy capacity. How much depends mostly on the amount of power draw from the device.2...." Read more
"...Keep in mind, that, these weather sensors do not draw a lot of power, which, explains why these Lithium Batteries last so long for me...." Read more
Customers like the leakage of the batteries. They say that they never leak.
"...4. More power output in cold conditions.5. Much less likely to leak and corrode devices from the inside...." Read more
"...Lithium batteries NEVER leak!! (did you know that?) Even when they are dead. So...I think that just this fact makes them worth purchasing!!..." Read more
"...Best of all, they are far less likely to leak inside your electronic devices than alkalines...." Read more
"...NEVER will I but Duracell again..leaked all over my flashlight and they denied the claim claiming the batteries were counterfeit...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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I ordered these, as they’re the most recommended for security cameras running on batteries, and so far so good!
Learn from my mistake - always ensure you’re using the recommended batteries for your devices. Not all AA/AAA and the like are actually the same just because they fit!
That translates into 10.6 hours at full power instead of 8.5 hours. Or, 116 hours at low power instead of 93 hours. That means I can carry fewer batteries and less weight. The flat voltage curve also means that Li Iron Di-sulfide batteries also handle a high drain device like a headlamp better than alkaline batteries.
They also perform much better in cold weather so winter backpacking is a good use of these batteries. In sub freezing temps the battery life advantage over alkaline batteries can be as much as 4X with a drastically more consistent voltage..
I was fortunate enough to be involved in evaluations of Lithium batteries when they were first developed in 1990. In fact, I salted away a few left-over 4 packs of Energizer's early L91 LithEon AA cells, and I've used one in the ancestor of what is now Gerber's Infinity Ultra AA LED flashlight, and others in toolbox lights. It's now 2011, fully 21 years later, and the remaining cells test "full", and the emergency and toolbox flashlights are damage-free and fully bright.
When consumer volume and pricing for these batteries became available, I didn't hesitate to purchase and recommend these for use whenever the item will see long periods of storage (intentional or unintentional) after which like-new operation is necessary. Lithium batteries also are more tolerant of temperature of operation as well, making them a good choice for use in extremes.
Energizer Lithium AA and AAA are now available in two capabilities, this one, the L91 AA (and L92 AAA), and the newer EA91 AA (and EA92 AAA). Shelf life of the L91 and L92 products are specified to 15 years retaining 90% of charge, while the E91 and E92 cells are specified to 10 years retaining 80% of charge. Both families will provide about 30 hours of operation at 100mA drain, which is typical for an LED flashlight. The L- family also provides a higher peak demand current drain capability. So, then, if your challenge is having a good, long run time in your every-day use electronics without worry if the item gets put away in a drawer for a time, choose the EA- series; if you're using AA's and AAA's in emergency lights and similar emergency gear, or demand the longest run-time after extended storage between uses, chose the L- series. Relegate your NiMH rechargeables and Alkalines for heavy use, regularly replaced items, but when long periods of storage between uses are possible or intended, use Lithium. Gerber Infinity Ultra Task Light.
Top reviews from other countries
Yes these are the most expensive batteries money can buy but they are worth every penny. I wish they came up with a rechargeable version of these batteries. Did I mention they have a very long shelf life and they are lighter than Alkaline AA batteries? Buy them. You won't regret it.
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