Hello, I am currently ambassador for the site "want more", and thanks to that I tested for several days Duracell AAA rechargeable batteries. Father of 3 children, aged 7 days, 2 years and 10 years, the batteries are part of my daily nya since not a single day where I'm not forced to change those of a new device (baby monitor, mickey computer educational office, music books, ....). My batteries budget is quite high and this despite the fact that I bought several different kinds of charger and rechargeable batteries ... Unfortunately I have always been disappointed because the batteries do not hold load or it took 24 hours for actually loaded and soon it was hanging load ... In short, when I heard about the new Charger Duracell 4:00 and batteries that are associated with it, I was skeptical at first but now after several days of use (and daily refills) I am totally satisfied and I even bought more batteries to equip with all the toys of my children ... Indeed, recharging is done extremely quickly but especially the batteries have a real charge and are not left empty at the end of one hour !!! I am totally satisfied and I would definitely suggest this product that will become essential to you ...