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AC charger with boost feature Jump starter with lithium battery. Some AC battery chargers have a boost, engine start, or engine assist feature. Despite being able to assist in jump starting a dead vehicle battery, these types of battery chargers perform their task over a longer period of time, rather than an instantaneous boost.
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.
The MacBook and the 13-inch MacBook Pro use a 60 W MagSafe charger, whereas the 15- and 17-inch MacBook Pro use an 85 W version. The MacBook Air used a lower-powered 45 W version. According to Apple, an adapter with a higher wattage than that originally provided may be used without problems. [12]
The first version of the MagSafe Charger, released in 2020, delivers up to 15 W of power to iPhones 12, 12 Pro, and newer, with the exception of iPhone 12 Mini and 13 Mini, which support 12 W. [12] The Wall Street Journal found the MagSafe Charger charged at half the speed of a 20 W wired charger. [13]
Australia: The MAG is the standard GPMG of the Australian Defence Force, in particular the Australian Army, where it is known as the MAG 58. [55] It is also used by the Australian Border Force. [56] Austria: The MAG is used by the Austrian Army as the 7,62 mm MG FNMAG/Pz and is used in the Schützenpanzer Ulan and the Leopard 2A4.
The power for an electromagnet lock is DC (direct current), around 5–6 W. [4] The current is around 0.5 A when the voltage supply is 12 VDC and 0.25 A when using 24 VDC (varies between manufacturers and if there are one or two coils in the block). It is also recommended to verify that the magnetic lock carries the UL mark.