Eneloop Panasonic K-KJ17MCA4BA Advanced Individual Cell Battery Charger Pack with 4 AA 2100 Cycle Rechargeable Batteries

I have not used the charger as yet (have been charging the batteries using another charger) but the batteries work well and are brilliant as usual, as expected from Eneloop batteries and Panasonic. These AA batteries like the AAA batteries maintain their charge better than others whether actively used or not. They have a great shelf life and maintain 70 % of their charge capacity even after 5-10 years(not sure whether its 5 or 10 as I have not stored or even used them that long) when stored without use as suggested by the manufacturer. Many experts and regular users also have tested and verified the claim to be true even if I personally did not get that chance. The pack of 4 with the charger is pretty expensive, but then again it should be more than worth it if the charger functions well (and charges the batteries safely and fast) and if the each battery actually lasts 2100 cycles each, I of course have not reached anywhere near so many use cycles just yet so cannot verify the veracity of the claim personally but the reputation with people speaks for itself. The batteries come per-charged (using solar energy) and can be used straight out of the box (not sure if the charge lasts the full cycle though on first use) Currently they are working perfectly fine, so overall a good buy.

Excelente, atendeu perfeitamente.

These batteries last just as long as any premium branded non-rechargeable I've tried. They last much longer than most other brands of rechargeable batteries I've used as well, store-brand batteries from the big box stores can't even come close to comparing to how long these last. With heavy use in my Xbox One controller they typically last a month! They're aesthetically pleasing when they're in the charger with their simple but elegant design so I don't feel bad about leaving them to charge in my living room where everybody can see. The charger itself is sleek and attractive as well, and seems to charge quickly! The fact that it charges AAA batteries as well as AA is a huge bonus. The automatic turnoff feature seems to have worked great for me, I never see the green lights on when I don't expect them to, saving money on electricity in the long run! With each battery charging individually as well, it doesn't matter if one battery is full when you put a dead one in, cheap chargers only charge them all at once and can't charge if there's a full battery in with a dead one. I've been using the batteries and charger for a few months now and am very happy with them. Don't be fooled by the big battery companies into spending tons of cash on their fancy feature laden batteries. These have a higher mAh rating than most other batteries in their class and also are rated to last after even 2100 recharge cycles. Charging these for my Xbox controllers once a month means these batteries should easily last me decades before they start to deteriorate in performance.

funcionan EXCELENTE, carga muy bien y duran bastante. yo la uso para mi cámara digital

I am impressed with the Eneloop batteries. After hearing so much positivity about these rechargeable batteries, I decided to give them a go. In short they're the best batteries I have used. I needed an alternative to my Xbox Series X Controller battery pack after my powera recharging station gave out. In the few months I have used, Eneloop lasts longer and I have to charge less frequently even after long hours of gameplay. I estimate I get at least 20-30 hours of gameplay, however your's will vary because I use no vibration settings and dim Xbox light on controller and that conserves a lot of battery. Definitely simple and easy to use, the charger works with the aaa eneloop batteries, I also decided to buy and use for my remotes. The charger is quality and not a cheapo junk. This is the real deal, I have seen someone Get over 10 years use out of these batteries. These won't work on certain devices, these are Nickel-Metal Hydride NOT Lithium. So for certain devices you may have to research if they work, some reviewer said they do not work with Gameboys because of the output, you just have to research and figure out before hand. For my uses they work great, I can highly recommend if you are a Xbox Series X Controller user they are the best rechargeable technique I have used thus far for my Xbox.