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2. 18650 battery - Wikipedia

   en.wikipedia.org/wiki/18650_battery

   18650 battery cells are used in a wide variety of products from the 1990s through the 2020s, and are widely regarded as the most produced lithium-ion cell size. [ 10 ] 18650/1865 cells are used in many laptop computer batteries, cordless power tools, many electric cars, electric scooters, [ 11 ] most e-bikes , older portable powerbanks ...

3. 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 ...

4. Battery holder - Wikipedia

   en.wikipedia.org/wiki/Battery_holder

   Battery types such as the 9-volt have snap-on contacts. Battery holders for zinc-air batteries must not be completely air-tight since approximately 1 litre of air is required per ampere-hour of discharge per cell. The battery holder may include a valve integrated with the device power switch to allow air to be admitted when the device is ...

5. 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.

6. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   Battery cases are small power banks attached to the rear side of a mobile phone like a case. Power may be delivered through the USB charging ports, [18] or wirelessly. [19] Battery cases also exist in the form of a camera grip accessory, as was for the Nokia Lumia 1020. [20] For mobile phones with removable rear cover, extended batteries exist ...

7. 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.