Review on 🔋 Duracell Ion Speed 4000 Battery Charger with 2 AA and 2 AAA Batteries - Charger for AA & AAA Batteries by Jennifer Tillman

I use it to charge Duracell AA and AAA batteries. I have also used this charger to charge Amazon batteries. Amazon batteries charge perfectly. Haven't had any problems yet. You can charge AA or AAA batteries, but not at the same time. They charge either one type or the other, but not at the same time. Only one battery cannot be charged. You must always charge in pairs, otherwise it will not charge. You must charge either 2 batteries or 4 batteries at the same time. Charges batteries relatively quickly.