Duracell Rechargeable AAA HR03 750mAh Rechargeable Batteries | 4 PackDuracell Duralock Pre Charged AAA Batteries use a technology known as slow discharge, which allows them to hold a charge 5 times longer than ordinary HR03 rechargeable batteries when not in use. They can be used anywhere AAA batteries are used, but instead of throwing them away like normal batteries; they can be reused over and over again. Duracell's rechargeable batteries hold a charge for up to a year and can be charged hundreds of times. Since