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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 , amperes, current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged.
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The battery charger (model EL-81) supplies power to the calculator's charging input at voltages of 8.7 and 9.6 volts; [9] the combined input power rating is about 3.2 watts. [10] Sharp NR-AA Rechargeable Battery. The EL-8's battery pack is much smaller than that of the QT-8B, and this was critical in reducing the EL-8's size and weight.
The energy used to charge rechargeable batteries usually comes from a battery charger using AC mains electricity, although some are equipped to use a vehicle's 12-volt DC power outlet. The voltage of the source must be higher than that of the battery to force current to flow into it, but not too much higher or the battery may be damaged.
Float voltage is the voltage at which a battery is maintained after being fully charged to maintain that capacity by compensating for self-discharge of the battery. [1] The voltage could be held constant for the entire duration of the cell's operation (such as in an automotive battery) or could be held for a particular phase of charging by the charger. [2]
In a series of videos, the man responsible for the deadly New Year’s attack in New Orleans discussed planning to kill his family and having dreams that helped inspire him to join ISIS, according ...
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