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2. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   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 battery pack is often used in reference to cordless tools, radio-controlled hobby toys, and battery electric vehicles.

3. Macintosh Portable - Wikipedia

   en.wikipedia.org/wiki/Macintosh_Portable

   PowerBook 140 / 170. The Macintosh Portable is a portable computer that was designed, manufactured, and sold by Apple Computer, Inc. from September 1989 to October 1991. It is the first battery -powered Macintosh, which garnered significant excitement from critics, but sales to customers were quite low. It featured a fast, sharp, and expensive ...

4. Power supply unit (computer) - Wikipedia

   en.wikipedia.org/wiki/Power_supply_unit_(computer)

   A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a desktop computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the main voltage.

5. The 10 Best Portable Chargers and Power Banks - AOL

   www.aol.com/lifestyle/10-best-portable-chargers...

   Having a portable charger or power bank keeps your devices ready for use. We've tested and picked the 10 best portable chargers to get in 2024.

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. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Rapid charging results in even faster recharge times and is limited only by available AC power, battery type, and the type of charging system. [20] Onboard EV chargers (change AC power to DC power to recharge the EV's pack) can be: Isolated: they make no physical connection between the A/C electrical mains and the batteries being charged. These ...