I find these batteries to be realMoney savers!I purchased these recently because I already have a set of AA Deleepow rechargeable batteries which work perfectly, and do exactly what I need them to. These AAA batteries arrived quickly from Amazon. There was very little charge in them so I put the first four in the charger and it took over 8 hours to charge them. My AA batteries get to a full charge in significantly less time. I experienced the same with the second set of four AAA batteries. After a week I put an unused set of four AAA batteries in the charger to see what would happen and they have been charging for several hours and are not close to full. One thing I noticed is that these AAA batteries are light blue and the AA are dark blue - not sure if that matters, or not. Not sure if I can recommend these AAA batteries.This set of rechargeable batteries was a bit of a surprise for me. I was just needing to get two batteries to replace those in my Sennheiser wireless headphones. I found this set with 8 batteries and a USB charger. The charger works flawlessly and will let go charge a single battery at a time. This is compared to my Duracell charge that requires you charge in pairs and is not capable of charging via USB. The batteries themselves are able to be charged by the base for my wireless headphones so to me that was a huge win.Overall I am very happy with my purchase and feel that these set was a very good value!These batteries arrived quickly, we're nicely packaged, seemed to have been carefully made, and worked fine for me. Their 1100 mAh rating is higher than most AAA rechargeables I have been able to find.Had to use my own charger cableno cumplio con las espectativas, muy regular la duracion de la carga con respecto a su amperajeI got these rechargeable batteries for use with my LED flameless candles. I've had these batteries now for a few months and have tried them out with a few charge cycles. They do charge up and discharge with use as one would expect of a rechargeable battery.The bad; they do not hold a charge for very long and if installed on lightly used devices, the batteries naturally discharge before the device discharges them. I have other rechargeable batteries that are rated with a smaller mAh, and those batteries last twice as long in the same device. I use the same charger to charge both sets of batteries and one would think that having a larger capacity battery would get you a longer cycle use out of them.Overall, I would not recommend these. So save yourself the time and get a different kind.Great for my application (microphones and in-ear setups) ??