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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, current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged. Some battery types have high tolerance ...
Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...
Constant voltage. Constant voltage charging is a widely used charging method involving constant voltage between the battery poles. The starter battery uses constant voltage charging when the vehicle is running. If the specified voltage constant value is appropriate, it can ensure that the battery is fully charged, while also minimizing gas and ...
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. [1][2] This prevents conditions that reduce battery performance or lifespan and may pose a safety risk.
The standard allows compatible devices, such as smartphones, to charge their batteries when placed on a Qi charging pad, which can be effective over distances up to 4 cm (1.6 in). [2] The Qi standard is developed by the Wireless Power Consortium. [1] As a universal, open standard Qi-enabled devices are able to connect to Qi chargers from any ...
US$ 355.7 million (Fiscal Year Ended September 30, 2021) [1] Number of employees. ≈6,000 (worldwide, Fiscal Year Ended September 30, 2021) [1] Parent. Union Carbide (1980·1986) Website. energizer.com. energizerholdings.com. Energizer Holdings, Inc. is an American manufacturer and one of the world's largest manufacturers of batteries ...
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