dell docking station not powering on laptop

Small copiers (portable)​

Sports cameras​

Mosquito repellent devices (electric)​

Electric screwdrivers​

To supply power to portable angle grinders to grind the sharp edges of camping equipment (ensure safety)

To power amplifiers to facilitate the leader or organizer of the camping to convey information​

To charge emergency walkie-talkies to ensure communication and coordination among multiple groups during camping

To provide power for electronic book readers to avoid the inconvenience of carrying a large number of paper books during camping