Can it charge NiMH batteries?
No, this charger can only charge rechargeable lithium batteries.
Can I charge AA and AAA rechargeable lithium batteries at the same time?
Yes,It can be charged at the same time.
How should the battery be stored when not in use?
Charge the battery to 50%-80% and store it in a dry and cool place.
Can this charger charge other brands of lithium batteries?
Yes, It Can charge all rechargebale AA and AAA lithium batteries.