A sleek, fasts charger with smart safety spirit technical features att charges up two four aa or aaa batteries to once. With an additional perforated cover, thé sturdy case også doubles up as a battery organizer, keeping your batteries wel protected to home or on thé go.- Smart safety spirit technical features- 4 charging slots- 4x gp recyko aaa 950mah batteries included - works with any gp recyko charging dock, battery type: aaa hr03, capacity: 950 mah, color: green, rechargeable: yes, sales unit gross weight: 0.184 Kg, technology: nickel metal hydride.