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  2. Cordless telephone - Wikipedia

    en.wikipedia.org/wiki/Cordless_telephone

    A Panasonic KX-TG2226B 2.4GHz cordless phone with answering machine. 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.

  3. VTech - Wikipedia

    en.wikipedia.org/wiki/VTech

    VTech Holdings Limited. VTech Holdings Limited (an abbreviation of Video Technology Limited or simply VTech) is a Hong Kongese company of children's electronic learning products. [5][6][7] It is the world's largest manufacturer of baby monitors and cordless phones. [5][6][7] It was founded in October 1976 by Allan Wong (Chi-Yun) [1][2] and ...

  4. Advanced American Telephones - Wikipedia

    en.wikipedia.org/wiki/Advanced_American_Telephones

    Phones made today by Advanced American Telephones primarily include cordless telephones and some corded phones, such as Trimline, and some multi-line desk phones. Advanced American Telephones also holds the trademark rights to the Trimline and Design Line names, as well as others. They also produce answering machines.

  5. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    Nickel–metal hydride. 66. 300–800 [13] Low self-discharge nickel–metal hydride battery. 500–1,500 [13] Lithium cobalt oxide. 90. 500–1,000. Lithium–titanate.

  6. Lithium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Lithium-ion_battery

    A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.

  7. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threa­ded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.