Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack
by SANYO
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Digital Cameras Photo Reviews of Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack
Customer Review: Beware Of Counterfeit Eneloops!!!!!
Summary: 5 Stars
IMPORTANT UPDATE AT END!!!
Sanyo Enloops are a no brainer purchase! For the price of a ten pack of alkalines which you'll be running back to the store after a couple of weeks to replace, you get a charger and a set of Eneloops that practically speaking you'll never have to replace FOREVER! Really! Think about that the 12th time you run out for alkalines! The only dark cloud here are the plague of counterfeit Eneloops out there!! PLEASE -- whether you're about to purchase or already have, check out the Eneloops you spot on-line and compare them on these sites:[...] which are among several we referenced with the same conclusion. My luck recently purchased such a counterfeit Eneloop 4-pack online! First off the packaging simply doesn't resemble any in Sanyo's promos and ads online nor familiar to any user. It has a blue field and across the upper half is a silver band background-stamped "Original" with SANYO in red and on the blue field above that a crown labeled "New". The blue left and right fields say IMPROVED 1500 Cyclers and PRE-CHARGED Long Storage Life respectively, and the bottom edge is a thin orange stripe with no lettering. Uncharacteristic of Sanyo, the package's bi-lingual printed rear foil is flimsy and has bar codes Sanyo North America on it. As for the cells themselves, there's no space after the comma in "...DISPOSE IN FIRE,NOR SHORT-CIRCUIT..." . Wherein in the genuine photos have "SIZE AA HR6" (in bold) above "MODEL HR-3UTG 1.2V TYP.2,000MAH MIN. 1,900mAh" above the warning lines, not so on my cells, instead the top bold line is missing and latter line is on a separate space below the warning lines and is bracketed by blue positive and negative icons and below that line is stamped "MADE IN JAPAN/FABRIQUE AU JAPON" and a generic CROWN is used in place of Sanyo's logo on the left side. Additionally, and most starkly important as observers and Sanyo's handbook cite, there are gas release "vents" on the base of positive terminals on genuine Eneloop cells but which are absent my Eneloop pack -- a measure to prevent exploding overcharged batteries.
Thus it behooves you to examine your Eneloop purchase! Many online merchants have been hoodwinked by unscrupulous sources too so you would not be the only one! Amazon thrives on honest merchants and our vigilance and feedback can help weed the bad apples!!
UPDATE 02-17-11 !!!!!!
It's Official from Andrew Shin of Sanyo USA customer support:
[...]
Any eneloop cells so packaged as these are COUNTERFEIT along with the deeper descriptions mentioned above! Check and compare your purchases!!!!!!
Customer Review: Best choice for photographic equipment...
Summary: 5 Stars
This review is being written based on performance in photographic equipment.
AS a professional photographer I want the best performing AA rechargeable batteries I can find and these certainly fit the bill!
How I use them... they are the only batteries I put in the Nikon SD-8A battery packs, SB-800 and SB-900 speed flashes as they perform flawlessly.
I cascade the batteries so I never use them warm, or hot from the charger. On average I shoot 400-1,200 shots on a daily basis and have been using the same set of batteries since early 2009.
Using the Sanyo battery chargers, a fully exhausted set of four batteries can take a couple of hours to become fully charged and then you have to wait for the cool down prior to use. My solution for this delay and cool down period is to cascade a bank of 80 AA batteries. When on a shoot, we replace all strobe batteries at or around the 400th flash cycle and have never had batteries run out prior to this bench mark. If strobes/speed flashes were used on FULL power, I would expect to change them out sooner. With the aux SD-8A pack partnered with the SB-800 or 900 units, we go over 700 cycles without replacing the batteries without a problem other than a little slower recycling time near the end.
The batteries are handled frequently and I like the plastic storage case (holds four) as they keep the batteries protected in storage and slip into the pocked without allowing the batteries to get sandy, dirty, or bang around.
If there were better performing AA batteries out there, I would be using those... but as it stands, these have the best shelf life, highest quality build/coating and perform with great predictability. I am going to be approaching the 1000th cycle on some of these batteries in the coming months so I am looking forward to seeing how quickly performance falls off... as it stands, I can see no difference in performance between those which are a year old, or those which are two years old. Though it is rare that I use a battery to the point of failure, so deep cycling has not been what they are going through.
If you want to cut down on wasting batteries and need batteries that truly can "take it" then I suggest you purchase these. I also suggest that you mark your batteries with the purchase date so you don't mix old and new. Consumer Reports showed the Kodak batteries to be top performing, but a quick browse here on Amazon showed wide displeasure from many who have purchased them. So, these are the most widely endorsed AA batteries I've found.
Get them, you won't be disappointed... I am one happy customer.
Customer Review: Finally, the last drawback to rechargables is gone
Summary: 5 Stars
I've always been interested in rechargeable batteries. Really, hasn't everybody who has ever thrown away an alkaline wondered if there isn't a better way? I mean, they look perfectly fine, even though we know in our hearts that they are dead, never to return.
Enter the NiCad, the staple of the hobbiest of the 1970s, these batteries can be recharged many times, but quickly fade out. Their destiny was to be tossed into the battery drawer, that graveyard for half-used and dead batteries that everyone had someplace in their home.
Later, the NiMH, the successor to the lowly NiCad, arrived. When that one showed up, everyone declared victory, emptied the battery drawer into the trash, and started anew. They held much more power than the NiCads of their youth, and seemed nearly perfect. They worked very well indeed in high-demand applications like digital cameras, where the flash and the screen on the backs ate up the little NiCads like they were peanuts. The problem was that in lower demand applications, like remote controls, the thing they still had in common with NiCads proved their undoing. When left alone for a month or two, in a device or not, they would lose their energy. Leaking out like the helium balloon of a child, the power escaped into the ether, leaving the owner to return to a dead remote, unable to change a channel.
Enter the Eneloop, otherwise known as the precharged NiMH. But, this battery brought something more to the table than a simple quick-charge at the factory. It has an extremely low self-discharge rate, which is fancy talk for saying that a year after you charge it, your remote will still work. Amazing. Finally, after years of well-dressed, but incapable technologies, the contender actually has the chops to take on the reigning champion, the mighty bunny battery.
Replacing all of your remote batteries with these will save countless trips to the garbage, as well as trips to the computer to order more bulk batteries from Amazon. Just think what all those UPS trucks, filled with oddly-named alkaline batteries from China, could be carrying instead. The overworked drivers might even be able to take a day or two off every now and again, all because of a little, relatively unadvertised innovation that fits in your pocket.
If you've ever wondered if there might be a better way while throwing away yet another handful of dead alkalines, give these a try.
Highly recommended.
Sean P. Logue, 2008
Customer Review: Sanyo Eneloop LSD precharged NIMH rechargable AA batteries
Summary: 5 Stars
Great batteries. Low self discharge. I am still testing them but they were at a fairly high state of charge when received and ran my flashlight well. I did discharge/recharge recently and the cells are very well balanced one to another. None were dead or poor performing and rose to full charge at the same time. I would have preferred a slightly higher storage capacity but the low self discharge capacity makes a good tradeoff. The low self discharge is part of an effort by the manufacturer to extend "shelf life" of the charged battery. In other words, if you put a fully charged battery into say a flashlight and then put it on a shelf/drawer etc in your house how long would it last till the battery was not powerful enough to run your flashlight. In a typical situation such as this the "gold standard" is an alkaline non rechargeable battery. Alkaline have very long shelflife. Generally, for at least a couple years or more, depending on various circumstances. Rechargeable batteries on the other hand have a habit of slowly discharging even when not in use. Sometimes rather quickly. As a result they don't make good candidates for items like flashlights that may sit in a drawer until needed. Sanyo developed this type to be somewhat of a midway option between alkalines(non-rechargeable) and normal rechargeable batteries. These don't excel at long term storage or in short term power capacity. Depending on your battery useage patterns they could be a good option. I cycle through batteries in flashlights fairly quickly yet they may sit for a month or more without use. In this situation they seem to work well so far. The other key factor is how many times can I charge/recharge before the battery no longer accepts a charge properly. Manufacturer claims seem to be well founded based on what i am seeing so far. A quality product as advertised. I would not use these in photgraphic situations as the initial draw from the camera may be more than the battery can supply on instant demand. The recovery rate is somewhat slower as well so camera flashs may not work well. This is another situation where alkaline or photo specific batteries are best used. LED flashlights may not be at there best output due to slightly lower voltage from this type of battery. However the advantage really comes in when you compare it to the replacement cost of alkalines. Very good price, quick delivery, no damage, all in top working order when received.Customer Review: Great batteries - brought digital camera back to life
Summary: 5 Stars
My son's digital camera was unusable. The alkalines could not provide enough power and would immediately shut down with a low battery warning. I tried other rechargeable batteries rated at 1600 & 1800 mAh but they really didn't work for more than a few shots. The camera sat unused for over 1 1/2 years and my somewhat patient son (now 9 years old) would periodically remind me about his camera.
While doing some online research about higher capacity batteries, I came across Sanyo Eneloop batteries. From what I read from the description & reviews, these batteries seemed perfect for my son's camera (and for any digital camera that would suffer from the high self discharge of normal rechargeable batteries).
I went ahead and purchased 2 - Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries and 1 - 4 pack of the AAAs as well as a La Crosse Technology BC-700 Alpha Power Battery Charger. When I received them, I immediately put 2 AA batteries in my son's camera and pressed the power button. Wow, it had full battery power and no low power messages. We then played with the camera settings (using the LCD screen for quite a while), took over 100 flash pictures, 8 minutes of video, and constant viewing of pictures and video. The batteries still had charge left in them.
I decided to recharge them at the charger default rate of 200 ma. When they were done, their capacity measured 2280 mAh, quite impressive for batteries rated at 2000 mAh. Needless to say, my son is thrilled to have a working camera. Based on my limited experience thus far, these batteries really deliver. I will use them in my digital camera once the batteries run out as well as my daughter's digital camera.
Contrary to some other reviews, my batteries were in their original packages and not loose in a box.
Update: 7/18/2010
It has been a year later and I have purchase several more packs of these batteries. My son has taken many more pictures. I also put these batteries in my camera as well as my daughter's camera with great results. With the extra batteries, I have been able to put a set of fresh replacement batteries in each camera bag without worrying that they would be discharged before they were needed. I have also put 8 of these AA batteries in a fluorescent light that my family has a habit of leaving on. No problem now, just recharge them and they're good to go.