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Energizer e2 "AA" Lithium Batteries For digital cameras, portable audio players, and more | 
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| Brand: Energizer
Category: CE
List Price: $16.20
Buy New: $5.59
You Save: $10.61 (65%)
New (64) from $5.59
Avg. Customer Rating:  23 reviews
Color: Lithium
Memorabilia: No
Number Of Items: 4
Size: 4PK
Shipping Weight (lbs): 0
Dimensions (in): 4.5 x 3.8 x 0.6
MPN: L91BP4
Model: L91BP
UPC: 039800017932
EAN: 0039800017932
Availability: Usually ships in 1-2 business days
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| Features:
| • | lasts up to 7 times longer than alkalines with digital cameras | | • | weighs 1/3 less than alkalines | | • | operating temperatures: -40 to 140 |
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| Editorial Reviews:
Product Description
lasts up to 7 times longer than alkalines with digital cameras * weighs 1/3 less than alkalines * operating temperatures: -40 to 140 *
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| Customer Reviews: Read 18 more reviews...
These are manditory in the winter February 12, 2006
9 out of 9 found this review helpful
These batteries are expensive but they blow away the performance of alkaline batteries. I do a lot of backpacking and winter mountaineering and I use these a lot in my GPS and flashlight. AA lithium batteries are lighter and weight about as much as a AAA alkaline battery. These last several times longer in all conditions than alkaline batteries. Cold weather is where these really shine. These work to -40 degrees. Alkaline are terrible below freezing. If I am night hiking in the winter conventional batteries only last an hour or two in a flashlight. These will last all night long. Many cameras probably won't even work in the winter with alkaline batteries.
If you leave a flashlight in your car, buy a LED AA flashlight and put these batteries in it. It will actually work when you need it even in winter.
The only downside to these other than price is they produce a brief voltage spike when you turn something on. This should not be a problem in most electronic devices because they have voltage regulators. I find they are hard on bulbs in incandesant flashlights. I always brought 2 spare bulbs because I blew them frequently (tutning the light off and on frequently made this worse). I've never heard of a problem with these in LED flashlights.
Best batteries are not without their caveats. July 31, 2006
9 out of 10 found this review helpful
Aside from the ludicrous pricing, Lithium cells do vent small amounts of gas when you use them. This is normal in case you smell something when you open your device. Don't inhale the gas.
Check out their web site and you will find not all devices run 7 times longer, it depends on the drain of the device. These batteries do NOT hold 7 times the mA power.
Let's put it in perspective. A typical Alkaline AA holds about 2565 mA of power. Though 1.5v is nominal, they actually measure 1.6v when fresh. Voltage naturally drops as you use the battery.
Lithium AA's hold about 2900 - 3000 mA. Again, 1.5v is nominal, but they measure about 1.7v - 1.8v. Lithium also has a naturally straighter discharge curve and sustains usable voltage for longer periods of time. This is partly due to Lithiums having a higher wattage capacity than Alkalines.
When an Alkaline measures 0.9v and heads for the dead zone, it may still hold 1/3 of its' power, or more. This goes to waste as most devices simply stop when the voltage drops too far. Lithium not only has a higher mA rating, but they sustain higher voltage for longer times, and thus, drain much more deeply.
In a low drain device, this appears to last 7x longer. In reality, Lithium AA holds about 20% more power than Alkaline, and thus you may only see +/- 20% of extended run time. All depends on the device.
While your AA Lithium will eventually die, you could probably get some more use out of it in a good LED flashlight - though at reduced light output. Don't drain them too deeply, or they can explode like any other battery. When you stop getting usable light, replace the batteries.
Their resistance to heat and cold and longer life make them ideal for vehicle emergency devices, such as flashlights.
Kept my Canon 570IS going strong on a two-month hiking trip September 11, 2007
9 out of 9 found this review helpful
I needed a light digital camera for an extended trek in Europe (the Camino de Santiago pilgrimage in Spain), so after much research I purchased a Canon 570IS. One selling point for the Canon was its power source: two AA batteries - lightweight and easy to replace in any country. I was going to go with a cheaper package of AAs, but my photographer friend suggested I buy the Energizer Lithiums. He told me that they lasted longer in digital cameras than regular AAs, and therefore I wouldn't have to carry as many. I took his advice, and he was right on all counts.
During my two months in Spain and France, I took almost 900 pictures. Along the Camino, photo opportunities arose multiple times throughout each day. Over and over again, I'd take my camera out of the case, turn it on, take one or more shots, and then turn it off. During rest stops I'd view the camera's growing stash of pictures on its rear screen for my own pleasure, or to show them off to others. Through it all, the two Energizer Lithium batteries kept my Canon humming along like a charm. I brought along an 8-pack to ensure I had enough, but ended up using only 4 of them (I gave two away to another pilgrim after his camera's batteries suddenly died, and never used the last two).
Bottom line, the Energizer Lithium batteries went way beyond my expectations. I figured I would have to change them every two weeks, but that wasn't the case. Indeed, the first pair was still working fine after 30 days (remembering the above experience with my fellow trekker, I changed them at the 4-week mark just to be proactive). As a newbie digital camera user, I was surprised and pleased with the Energizer Lithiums. I'm glad my friend recommended them to me, and I second his advice to purchase them for whatever point-and-shoot camera you use to document your next journey.
Last a long long time... June 27, 2004
7 out of 7 found this review helpful
These are great batteries. I had one set in Nikon F4s and used them for many trips and it is still going and going f0r four years alrady. Light weight (1/3 the weight and at least 5+ times the power than the Alkaline batteries. Best of the all, it will not dmage your camera while storing. A true "everyready"! HIghtly recommended.
Some of the Best Batteries for Electronics March 2, 2005
6 out of 6 found this review helpful
I have used these batteries several times for some of my electronic devices, and I can say without hesitation that they are the best that i have ever used. If you do not need batteries for a demanding electronic device, then you could probably do without these since they tend to be a bit more expensive. But if you have something that needs alot of power and you don't want to be constantly buying new batteries, then definantly give these a try.
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