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2. Motorola bag phone - Wikipedia

   en.wikipedia.org/wiki/Motorola_Bag_Phone

   All of these phones feature a modular design in which the handset attaches to the transceiver, which is then powered by either a vehicle's power system (in the car phones) or a battery pack (in the transportables). By reducing the size and weight of the transceiver and battery pack, and introducing more fashionable bags (originally nylon on the ...

3. MagSafe (wireless charger) - Wikipedia

   en.wikipedia.org/wiki/MagSafe_(wireless_charger)

   The pack itself can be charged either directly through its Lightning port or wirelessly from an iPhone that is being charged via Lightning. [ 28 ] [ 29 ] [ 30 ] The MagSafe Battery Pack was discontinued in September 2023 after the iPhone 15 series was released, which charges via USB‑C (for wired charging, in addition to Qi2 and MagSafe ...

4. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   Lead-acid automobile battery pack consisting of 28 Optima Yellow Tops Lithium-ion battery pack for Lucid Motors. A battery pack is a set of any number of (preferably) identical batteries or individual battery cells. [1] [2] They may be configured in a series, parallel or a mixture of both to deliver the desired voltage and current. The term ...

5. 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.

6. The 6 best cellphones for seniors in 2025 - AOL

   www.aol.com/lifestyle/best-cellphone-seniors...

   Battery life and backup chargers: Speaking of accessories, consider keeping a mobile charger close at hand. Depending on how you use it, your phone's battery life might last a couple of days on a ...

7. Battery management system - Wikipedia

   en.wikipedia.org/wiki/Battery_management_system

   A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack) by facilitating the safe usage and a long life of the battery in practical scenarios while monitoring and estimating its various states (such as state of health and state of charge), [1] calculating secondary data, reporting that data, controlling its environment ...