Instant Power. 8-Hour Charge Time. Charges 2 AA or AAA Rechargeable Batteries at a Time. Foldable Wall Plug. Energy Star Certified The Mini Charger can charge two AA or AAA rechargeable batteries at a time, and has a foldable wall plug that makes for easy portability and handy storage. It includes two StayCharged Rechargeable batteries with Duralock Power Preserve™ Technology. And the Mini Charger can charge other brands rechargeable AA or AAA NiMH batteries as well. *Please note that Duracell® cannot guarantee the quality, safety, or performance of other battery brands so using Duracell **Actual product st.