Sanyo Eneloop AA NiMH Rechargeable Batteries 8-Pack - High Capacity Pre-Charged Batteries for Cameras, Flashlights, Toys & Electronics - Eco-Friendly Power Solution

when i first bought these brand of nimh batteries, the price seemed a little high at the time. now 12 years later, i never had any real issues with these batteries and the quality. of constant use, you will get about a good year of use. after i used them for about 4 years, they didn't hold the charge as best as they did when i first got them, but they were still useable.Sanyo Eneloop BatteriesI bought these battery's in Sept 2009 trying to find the right battery to use with my Wii Remote. Well it started with the Wii Remote and now anything that will use AA or AAA batteries uses these batteries. I wanted to first start by giving credit to were credit is do, "NLee the Engineer". Any technical info you need to know about these batteries and other LSD (low self-discharge) or also called Pre Charged batteries I would start by reading his reviews first. They are called LSD (low self-discharge) because after a year you still have around 80% of the charge. You have a remote you don't use much, well after 3-4/mo, or more, you can pick it up and it still will work. Or have it stored in you drawer, and after a year you still can use them. They are rated at 2000 mah. At the store you might see higher ones, but you won't be happy with those. Why? Because they might not be LSD (low self-discharge), and won't hold the charge like these. These do perform just like alkaline batteries.So like "NLee the Engineer" has covered the technical part of it I am just going to mention how I use it. Again it started as a search for the best battery for my Wii. I was going through batteries more than what I wanted. So where do you go to read reviews on things you want to buy, Amazon. I read about some battery packs for the Wii Remote, but I also read that it could damage your remote. I searched on Amazon for rechargeable AA batteries, and Sanyo Eneloops was #1. The first thing I said was "what are Eneloops, and when did Sanyo start making batteries?" I read the reviews from so many and from Mr. NLee the Engineer, and I was sold.Like I have rechargeable batteries, I need to charge them right? So I went to the search and again NLee suggested as a beginner charger the 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.