Review on 50AA2500 EBL Individual Battery Charging System - Rechargeable Batteries by Joseph Autry

I bought these batteries to use in my smart door lock. I had a set of non-rechargeable batteries for 6 months. They charged quickly but after a week I got a message from my lock saying the battery was low. I replaced them with 4 more and charged them overnight to be sure. Of course, after 1-2 weeks I get the same message from my lock that the battery level is low. It's like the charger isn't fully charging them even when the light is green, or the batteries aren't holding a charge at all. The door lock consumes little energy and is only used 1-2 times a day. I'm already tired of changing them every two weeks.