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2. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Telecommunications, electric power, and computer uninterruptible power supply facilities may have very large standby battery banks (installed in battery rooms) to maintain critical loads for several hours during interruptions of primary grid power. Such chargers are permanently installed and equipped with temperature compensation, supervisory ...

3. Rechargeable battery - Wikipedia

   en.wikipedia.org/wiki/Rechargeable_battery

   A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use.

4. Powerbank - Wikipedia

   en.wikipedia.org/?title=Powerbank&redirect=no

   This page was last edited on 14 July 2024, at 13:56 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

5. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   A portable power bank charging a mobile phone. A power bank is a portable device consisting of a battery, a charger to interface battery with charging power source and an output interface to provide desired output voltage. [10] Power banks are made in various sizes and typically based on lithium-ion batteries. A power bank contains battery ...

6. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   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 vehicles, power tools, electric toothbrushes, and medical devices.

7. Cordless telephone - Wikipedia

   en.wikipedia.org/wiki/Cordless_telephone

   Cordless phones became widely used in home and workplaces during the early 1980s. According to The New York Times, the number of cordless phones sold in the United States grew from 50,000 in 1980 to 1 million in 1982. They quickly became popular because of their convenience and portability, despite fears that their reliance on radio signals ...