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2. List of Microsoft Surface accessories - Wikipedia

   en.wikipedia.org/wiki/List_of_Microsoft_Surface...

   The Surface Pro and Pro 2 feature a 48 watt power supply with a USB (power only) port on the charging brick. As with the Surface 2's power supply, the Pro 2's power supply features a larger indicator light. Microsoft redesigned the power supply for the Surface Pro 3 with a new "fin" connector and a 36 watt rating.

3. Uninterruptible power supply - Wikipedia

   en.wikipedia.org/wiki/Uninterruptible_power_supply

   A large data-center-scale UPS being installed by electricians. An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.

4. Backup battery - Wikipedia

   en.wikipedia.org/wiki/Backup_battery

   A backup battery provides power to a system when the primary source of power is unavailable. Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers. Small backup batteries may be primary cells ...

5. Surface Pro 6 - Wikipedia

   en.wikipedia.org/wiki/Surface_Pro_6

   The Surface Pro 6 is compatible with the Surface dial for additional shortcuts and functionality. An optional Surface Connect to USB-C Adapter (HVU-00003) which attaches to the docking/AC adapter "Surface Connect" port. The adapter supports USB 3, Display Port alternate mode, and charging via USB Power Delivery. Microsoft has discontinued this ...

6. Emergency power system - Wikipedia

   en.wikipedia.org/wiki/Emergency_power_system

   A backup generator for a large apartment building A backup power fuel cell for telecom applications A portable emergency power generator in a shipping container. An emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply.

7. Power source - Wikipedia

   en.wikipedia.org/wiki/Power_source

   The electric power industry; A source of electrical energy. Electric power system, a network of electrical components used to supply, transmit and use electric power Electricity generation, the process of generating electric power from other sources of primary energy; Power station, an industrial facility for the generation of electric power