hp docking station not powering up

Tablet computer​

Power banks (rechargeable twice)​

Portable speakers​

Pet water dispensers (electric)​

To provide power for model aircraft equipment, enabling the control of model aircraft during camping

To supply power to small copiers (portable) to copy maps, guides, etc. needed for camping

To supply power to electric tools (such as small electric drills) to repair camping equipment or build facilities

To charge the headphones charging case to ensure no power outage concerns when listening to music during camping