I purchased the Sanyo Eneloop AAA, Sanyo Eneloop AA, and Sanyo Eneloop XX AA batteries. Since Amazon clumps them all together, this review is about those 3 items.Being an average user with remotes, flashlights, toys, game controllers, I've gone through hundreds of akaline batteries. I've even upgraded to use those Lithium branded ones that Energizer and Duracell sells, but those things carry a premium price (like $20 for a pack of 4). Over my life, I've probably spent thousands of dollars on disposable batteries. Tired of spending money on disposables, a couple years ago I bought one of those Duracell rechargeable battery kits from Walmart. It came with a 4-battery wall charger and 4 2000mAh batteries (made in China). Over time, those four batteries held up their end (I used them in my digital camera) but 2 of those batteries never kept their charge for long and I ended up throwing them away. I still have the other two and they work "OK".Recently about a year or so ago, I needed some more batteries and I only had 4 rechargeables from my original Durcell kit. I ended up buying a 4-pack of Duracell Rechargeable 2450mAh (made in Japan) and an even newer 4-pack of Duracell Rechargeable 2650mAh (made in Japan). Those worked pretty good but because of the number of devices I have requiring batteries, I needed to invest more in batteries... but I wasn't about to until I did more research on what were the best because my past rechargeable battery experiences were either a hit or miss.From my research (just Google for best rechargeable batteries) I learned that the best rechargeable batteries come from Japan (the China ones are OK) and Duracell actually sometimes rebrands batteries made by Sanyo (their Eneloop line). Now I know why my Chinese Duracells never lasted quite as long as my Japanese Duracells! I also learned that the wall charger (most of them that come with rechargeable batteries these days) I got with my kit do not charge batteries properly and is one of the reasons why all my batteries don't seem to last as long as they did when I first bought them.In addition, I found a great resource on Amazon, "NLee the Engineer" who knows his stuff about batteries & chargers (he's an electrical engineer). Based on his FAQs & reviews, I made my choice for a good charger & rechargeable batteries by his recommendation. So in one swoop, I invested in an intelligent battery charger (Maha C9000) and a handful of Sanyo Eneloop batteries (over $100 worth).Upon receiving the batteries, I verified that they were indeed the *latest* generation of Sanyo Eneloops (they have a grayish-silver crown logo on the side of them). While there is very little difference between the prior generation and the latest, the latest ones are slightly better and if I'm going to drop over $100 on batteries, I want to make sure I got the best & latest.The Eneloop packaging & several review sites stated that the Sanyo Eneloops are top rated because they have 1) a high durability, allowing estimated 1500 charges and 2) low self-discharge rate, maintains a large percentage of its charge after 3 years. While I can't attest to either because I only had them for a short period of time, I can say that they are very good when I used them in conjunction with my Maha C9000 charger. They power everything I have without issues (I had some weird issues with other types not powering up some devices).One thing I will say to be aware of is that the white Eneloops are rated at 2000 mAH. Other brands do boast a higher mAH and the higher the mAH, the more "juice" you have for your devices. Some people consider 2000 mAH to be a little low for some high powered devices. My Duracells (~$14), which I'm fairly certain are rebranded Eneloops, have a similar rating to that of the Eneloop XX brand (