Bought on promotion on the site, I admit that this charger made me evolve into rechargeable batteries. With its large capacity and especially the possibility of an odd number of batteries, it is an ideal charger. Of course, it is not limited to the Duracell batteries and the charging time can vary depending on number of installed batteries and quality. So do not stop at 3:00 indicated. Then remember that the batteries are generally 1.2V and not 1.5V, therefore themselves responsible, testers may say that the batteries are not.