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In May, Legrand acquired Middle Atlantic Products, a US company specializing in digital infrastructures. [33] [34] The same year, Legrand acquired the Spanish Neat. [35] 2012: Electrical equipment major Numeric Power Systems sold its UPS (uninterruptible power supply) business to France's Legrand Group for a total of Rs 806.44 crore. [36]
A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage and current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged.
In October 2021 Apple introduced a 140 W (28 V 5 A) GaN USB PD charger with new MacBooks, [74] and in June 2023 Framework introduced a 180 W (36 V 5 A) GaN USB PD charger with the Framework 16. [75] In October 2023, the USB PD promoter group launched revision 3.2 of the specification.
Most cylindrical dry batteries (such as the AA battery) have a projection at one end (positive) and a flat base (negative). These mate with metal strips or springs in the battery holder . Six-volt lantern batteries typically feature two coiled, cone-shaped spring terminals, designed to mate with flat contact plates on the inside of the battery ...
As the use of a plug implies a cable, even a short stub, some power supplies carry panel-mounted receptacles instead to avoid this cable. Cables for such cases are available with a plug at each end, although cables or adapters with two receptacles are not widely available.
The actual voltage, matching the car battery's voltage, will be approximately 12.5 volts when dormant (less in cold conditions), approximately 14.5 volts when the engine and the alternator/generator are operating (more when cold), and may briefly drop as low as 5–6 volts during engine start due to the high temporary battery current usage. [12]