2. Turn your key counterclockwise to make the lock cylinder downward.
3. As shown in the left picture, align the slider
4. There are two lock positions, the locking principle is the same, and the other lock position can also control the switch of the battery. The No. 3 port is the charging port
5. Turn it clockwise to lock your battery.
6. Press down the key and turn it counterclockwise to unlock your battery.