Energizer L91BP-8 Lithium AA Photo Battery (8-Pack)
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Digital Cameras Photo Reviews of Energizer L91BP-8 Lithium AA Photo Battery (8-Pack)
Customer Review: Batteries Exceed Expectations
Summary: 5 Stars
I purchased these batteries after reading the most favorable review in Consumer Reports magazine. Although I normally buy whatever alkaline batteries that happen to be on sale when I need them, I ran into a situation where the normal BJ's special batteries just were not performing as I needed. My battery tester showed that the alkaline batteries were at full strength, yet when placing them into one of my indoor/outdoor/atomic clock/thermometers into both the transmitter as well as the receiver, no communication was taking place between the units. I tried several batteries over the course of a week. What a waste of time. I thought that the transmitter was not transmitting, but was able to rule that out by using a different indoor/outdoor/atomic clock/thermometer with the questionable transmitter. So now I had to determine if the receiver had gone bad. On a whim I decided to insert a pair of these into the receiver, and within 20 seconds the communication link was established, and has remained so since putting them in. Although my particular application has a minimal draw on the batteries, another advantage is the long long battery shelf life. By my estimate, it will be several years before I need to replace these batteries because the electrical draw is so low.
I bought the same batteries for use in my digital camera, while on a trip to Sedona, AZ, and they lasted much longer than I had expected. Although I normally use NiMH batteries in the camera, I had inadvertently brought the wrong charger with me, and so was in a position where I needed batteries. btw, those batteries lasted for over a month of intermediate use; moderate use in Sedona, and light use after returning home.
Customer Review: Longest running AA battery
Summary: 5 Stars
When energizer brought the lithium chemistry to a 1.5v (in reality 1.7v) AA battery they gave the consumer a choice. I purchased these for a specific application, allow me to explain.
Earlier I had purchased the honeywell weather station (wireless) which relies on AA batteries - I think I used 28 doing the install. Some locations were a royal pain to get to and I did not want to try and change 4 batteries with 8 tiny screws on my roof very often.
Enter the L91BP. Batteries have a price. There is the cost of acquisition here on amazon, disposal, and the time spent replacing them. Let's say you estimate your time at $40/hr which is reasonable for any engineer.
Assuming a good grade alkaline is $1/cell and these are $2/cell to change 4 batteries I am spending an extra $4. If they last 7 times longer, I've avoided 6 trips up on the roof to change them. If it takes me 1 hour to remove and re-install the batteries, then clearly at $40/hr I have come out ahead buying the more expensive cells, since I saved 6 changes, or $240 worth of my time.
I also put a second temp meter in my deep freeze and set an alarm on it on the receiver. Because alkaline cells dont perform in sub-0 temps, I used the L91-BPs again for that application.
Now the products that are easy to change the battery in did not get the lithium cells, however they may if removing the 8 tiny screws without loss becomes a pain.
Cons:
Because of their 1.7V output, some flashlights may be overvoltaged with 4 of these in series and caution not to use lithium AA cells.
Customer Review: Nothing to Argue About
Summary: 4 Stars
The Energizer Lithium AA battery 8-packs are great value. I discovered these batteries as they came with my Apple wireless keyboard and mouse. I was incredibly impressed by the longevity of those particular wireless devices, when powered by these lithium batteries. I went several months without thinking about batteries in them. By comparison, afterwards, I used traditional alkaline AAs and the same devices lasted only a few short weeks.
Now I am again enjoying the benefits of these lithium batteries. This 8-pack sold on Amazon is a particularly great value. At first I thought the lithium batteries were too expensive, when I saw a 2-pack in a store, for nearly ten dollars. With this package on Amazon, the batteries usually cost around two dollars each. A great value and not much more than alkaline batteries, for a lot longer lasting power!
Lithium batteries also work better in extreme temperatures. If you, for example, have an outside thermostat for a weather station, this will work in the winter, whereas an alkaline battery may not.
An interesting tip, when my higher power devices, like bluetooth keyboard, runs low on power. I go ahead and pop one of the used lithium batteries into a clock. I'm not sure how long it will last, but it's a great way to recycle at least a few of your almost drained lithium batteries.
Now I've started using these, new, in powered toothbrushes, and I find it's a lot more powerful and longer lasting.
I highly recommended these for devices that quickly drain regular alkaline varieties.
Customer Review: Best battery for camera flashes
Summary: 5 Stars
I primarily use these batteries in my Nikon SB-600 Speedlight Flash. I started using them about a year ago after much frustration with the lifespan of normal alkaline batteries. I am not a professional photographer but it is a pretty serious hobby (addiction my wife would say) of mine, and nothing drives me more crazy than my equipment becoming the limiting factor of what I want to do creatively. Replacing batteries in the flash on what seems like a weekly basis is annoying--running out of juice in my camera flash at the wrong moment is much worse and can even be devastating depending on the context.
Thankfully these excellent lithium batteries from Energizer are truly superior in performance over either normal alkaline or rechargeable batteries. I get 500-700 shots out of a set of these, which makes them economical compared with the seemingly less expensive alternatives.
It is possible to find these batteries in larger packs at big box stores, but they're actually the same price per battery overall. I prefer them shipped free to my door, even if they were slightly more expensive.
These are great batteries for virtually any photography application weather in a point-and-shoot digital or in a flash unit like the SB-600. As other reviewers have mentioned, they are not superior when used in low drain applications like a computer mouse. Stick with normal alkaline or nimh batteries for those uses.
Customer Review: Whole new world
Summary: 5 Stars
Wow! I'm probably going to change the way I look at batteries from now on. We stuck two of these in our Sony digital camera and put two more in the bag to use when these ran out, and went on vacation for two weeks. I'm not sure how many photos we took in two weeks, but after culling out maybe 50 that we didn't want, we wind up with 206. Many of these were taken using the flash. During the trip, I downloaded the pics to my laptop about 3 times directly from the camera, and that also takes a bunch of power. Since the trip, there was a social occasion where my wife took perhaps 20 pictures since she got conned into being the staff photographer.
After all that, the camera shows the battery as fully charged!!
We're about to go on a 18 day trip to So. America and what I'm going to do is to take the camera with the used batteries still in it, and take a spare pair. I WAS figuring on having to take my charger with an adapter plug which would have been just one more thing to lug to Peru. Not now.
I just ordered some more for the future. I doubt if I'll ever use rechargables again.
Yes, these are expensive. In my humble opinion, the cost is WAY outweighed by the convenience..