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2. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   Some rechargeable flashlights have indicators for the state of charge of the battery. Power-failure lights are designed to keep their batteries charged from a wall plug and to automatically turn on after an AC power failure; the power-failure light can be removed from the wall socket and used as a portable flashlight.

3. Osborne 1 - Wikipedia

   en.wikipedia.org/wiki/Osborne_1

   The Osborne 1 is powered by a wall plug with a switched-mode power supply, and has no internal battery. An aftermarket battery pack offering 1-hour run-time is available, and connects to the system through a front panel socket. OCC also sold the POWR-PAC inverter that allows running an Osborne from a 12 volt car cigarette lighter.

4. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   Plus in newer cars, the power output from the lighter plug is so reliable that it can charge laptops, without any voltage problems. Standardized 12 volt DC automobile plugs are defined in the United States by UL Standard 2089 regarding vehicle battery adapters. This standard covers plugs and cord sets that insert into cigarette lighter receptacles.

5. Anker Innovations - Wikipedia

   en.wikipedia.org/wiki/Anker_Innovations

   Anker makes power banks, charging cables, wall adapters, power strips, USB hubs, and torches under the Bolder sub-brand. Soundcore makes Bluetooth earbuds, headphones, and speakers. Eufy produces smart home appliances and security devices. Nebula makes portable video projectors. Roav makes car accessories. Zolo was a precursor to the Soundcore ...

6. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   The battery has a maximum current rating that cannot be exceeded; Non-isolated: the battery charger has a direct electrical connection to the A/C outlet's wiring. Non-isolated chargers cannot be used in parallel. Power-factor correction (PFC) chargers can more closely approach the maximum current the plug can deliver, shortening charging time.

7. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.