Not sure I can check tomorrow when I go to the track. It's a 12x8 in case and the aaa fit nice in the divided compartments.

Sorry it took so long to reply I didn't see the comment. This charger will charge up to 2.5amp but with AAA you kinda want to stay under 1amp. If your 800mah cells are completely dead at 0.8amp it will take an hour. When I'm racing I charge after every 5 or 6 min race and I only pull 120 to 180 mah from the cells so they get toped off fast anywhere from 7 to 10min and there back to full. The charger will show lots of great info like homuch capacity that you put back in them and If you use the app on your phone you can even look at internal resistance of each cell individually and if you have lots of the same kind of cells you can match them with similar cells to make a more balanced set. This charger is long discontinued and was replaced by the nc2600 that is now discontinued aswell. I now run the MC3000 and it can charge faster but not recommended on small AAAs.