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2. Smart battery - Wikipedia

   en.wikipedia.org/wiki/Smart_battery

   A smart battery or a smart battery pack is a rechargeable battery pack with a built-in battery management system (BMS), usually designed for use in a portable computer such as a laptop. [ 1 ] [ 2 ] In addition to the usual positive and negative terminals, a smart battery has two or more terminals to connect to the BMS; typically the negative ...

3. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Since the Universal Serial Bus specification provides five-volt power, it is possible to use a USB cable to connect a device to a power supply. Products based on this approach include chargers for cellular phones, portable digital audio players, and tablet computers. They may be fully compliant USB peripheral devices or uncontrolled, simple ...

4. Smart Battery System - Wikipedia

   en.wikipedia.org/wiki/Smart_Battery_System

   Smart Battery System (SBS) is a specification for managing a smart battery, usually for a portable computer. It allows operating systems to perform power management operations via a smart battery charger based on remaining estimated run times by determining accurate state of charge readings. Through this communication, the system also controls ...

5. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   Battery Charging Specification 1.1 specifies that charging devices must dynamically limit bus power current draw during High Speed signaling; [52] 1.2 specifies that charging devices and ports must be designed to tolerate the higher ground voltage difference in High Speed signaling. Revision 1.2 of the specification was released in 2010.

6. Surface Laptop (7th generation) - Wikipedia

   en.wikipedia.org/wiki/Surface_Laptop_(7th...

   2x USB-C 4.0 with data transfer, charging, and DisplayPort 1.4; 1x USB-A (3.2 Gen 2) port; microSDXC card reader (15" model only) Battery specifications: 13.8": 54 wh nominal battery capacity, 20 hours rated battery life 15": 66 wh nominal battery capacity, 22 hours rated battery life; Surface Connect charging port [10] [11] No longer support ...

7. Laptop - Wikipedia

   en.wikipedia.org/wiki/Laptop

   A laptop's battery is charged using an external power supply, which is plugged into a wall outlet. The power supply outputs a DC voltage typically in the range of 7.2—24 volts. The power supply is usually external and connected to the laptop through a DC connector cable. In most cases, it can charge the battery and power the laptop ...

8. Charge controller - Wikipedia

   en.wikipedia.org/wiki/Charge_controller

   Charging controller of a USB power bank. A charge controller, charge regulator or battery regulator limits the rate at which electric current is added to or drawn from electric batteries to protect against electrical overload, overcharging, and may protect against overvoltage.

9. 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.