To Insert Batteries:1-Remove the battery pack by depressing the end cap to unlock2-Pull the end cap outward to release the battery pack3-Insert the battery pack into the screwdriver4-Make sure the battery pack has fully locked in lock position-Always wear proper eye protection-Keep away from children, not a toy-Do not mix different battery types-Do not mix new battery and old battery-Use only with AA alkaline batteries-Pay attention to the correct polarity when inserting fresh batteries-Included 1 Inch (25mm) Screwdrivers Bits are; PH1, PH2, PH3, Slotted-1/4In., 5/32In., 3/16In., PZ1, PZ2, PZ3, S1, S2