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2. Cordless telephone - Wikipedia

   en.wikipedia.org/wiki/Cordless_telephone

   A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station. A cordless telephone differs functionally from a mobile telephone in ...

3. Eneloop - Wikipedia

   en.wikipedia.org/wiki/Eneloop

   Eneloop ( Japanese: エネループ, Hepburn: Enerūpu), stylized as eneloop, is a brand of 1.2- volt low self-discharge nickel–metal hydride (NiMH) rechargeable batteries and accessories developed by Sanyo [ 1] and introduced in 2005. Panasonic acquired a majority stake in Sanyo in 2009, and Eneloop batteries were thereafter branded, but not ...

4. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   3LR12 (4.5-volt), D, C, AA, AAA, AAAA (1.5-volt), A23 (12-volt), PP3 (9-volt), CR2032 (3-volt), and LR44 (1.5-volt) batteries. This is a list of the sizes, shapes, and general characteristics of some common primary and secondary battery types in household, automotive and light industrial use. The complete nomenclature for a battery specifies ...

5. 18650 battery - Wikipedia

   en.wikipedia.org/wiki/18650_battery

   The batteries measure 18 mm (0.71 in) in diameter by 65 mm (2.56 in) in length, giving them the name 18650. [3] The battery comes in many nominal voltages depending on the specific chemistry used. Panasonic first developed the 18650 battery in 1994 "when there was a growing need for ever smaller and lighter storage batteries that could be used ...

6. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...

7. Rechargeable battery - Wikipedia

   en.wikipedia.org/wiki/Rechargeable_battery

   Rechargeable battery. A battery bank used for an uninterruptible power supply in a data center. A rechargeable lithium polymer mobile phone battery. A common consumer battery charger for rechargeable AA and AAA batteries. A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator ), is a type of electrical ...

8. Mechanically powered flashlight - Wikipedia

   en.wikipedia.org/.../Mechanically_powered_flashlight

   Mechanically powered flashlights were distributed by aid organizations to survivors of the 2010 Haiti earthquake since electric power was lost for a long period. A mechanically powered flashlight (UK: mechanically powered torch) is a flashlight that is powered by electricity generated by the muscle power of the user, so it does not need ...

9. A harmless asteroid will whiz past Earth Saturday. Here's how ...

   www.aol.com/news/harmless-asteroid-whiz-past...

   Called 2024 MK, the space rock will make its closest approach to Earth Saturday morning, passing by at about three-quarters the distance from Earth to the moon. A 7,579-foot (2,310-meter) asteroid ...