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2. Automobile auxiliary power outlet - Wikipedia

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

   The use of cigarette lighter receptacles to supply 12 volt DC power is an example of backward compatibility to a de facto standard. As a power connector, the lighter receptacle is larger, harder to use and less reliable than other DC connectors [citation needed]. Cigarette lighter receptacles are in widespread use in many highway vehicles and ...

3. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   When the voltage on the battery reaches its outgassing voltage (2.22 volts per cell) the charger switches to the second stage, and the voltage is held constant (2.40 volts per cell). The delivered current declines at the maintained voltage, and when the current reaches less than 0.005C the charger enters its third stage and the charger output ...

4. Solar charger - Wikipedia

   en.wikipedia.org/wiki/Solar_charger

   Solar cell phone charger. Solar cell phone chargers use solar panels to charge cell phone batteries.They can be used when no electricity supply is available—either mains or, for example, a vehicle battery—and are sometimes suggested as a way to charge phones without consuming mains electricity, unlike electrical cell phone chargers.

5. Mobile phone accessories - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_accessories

   Several companies have emerged as prominent manufacturers and brands specializing in mobile phone accessories. Anker: Known for chargers, power banks, and cables. Baseus: A Chinese brand offering chargers, cables, car mounts, and audio products. [4] Belkin: Headquartered in California, offers chargers, cables, and cases.

6. Battery holder - Wikipedia

   en.wikipedia.org/wiki/Battery_holder

   Battery holders developed in parallel with batteries over time; as battery-package sizes shrank so did the holders. In the 1980s, the first circuit board mounting lithium coin or button cell battery holders appeared in the form of patent no. 4487820 by the battery holder manufacturer MPD.

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.