As part of a test for the "Ambassador Club - Want more" I had the opportunity to try the AA batteries and Duracell charger. Convenient, compact and fast. One can easily take it on holiday or WE. Furthermore, the safety aspect is also interesting, because we do not have to leave the charger plugged in for long hours, at night or in his absence: The load is fast (4 hours) and effective (tested on camera, alarm clock and remote control) The price is also correct because the charger comes with 4 batteries (2 AA and 2AAA) that benefit from the technology "Duralock" ie you can charge batteries in advance, they do not discharge by themselves during storage. The charger is guaranteed for 5 years and the batteries 3 years, which is not negligible in the era of "throwaway" ... In short, a point developed for the environment with these rechargeable batteries and the wallet with good value for money! Of course I have not been able to test the life time of the battery charger because I use only a few weeks, but I hope we can count on quality DURACELL!