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A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.
The C-rate is defined as the charge or discharge current divided by the battery's capacity to store an electrical charge. While rarely stated explicitly, the unit of the C-rate is h −1 , equivalent to stating the battery's capacity to store an electrical charge in unit hour times current in the same unit as the charge or discharge current.
How fast self-discharge in a battery occurs is dependent on the type of battery, state of charge, charging current, ambient temperature and other factors. [2] Primary batteries are not designed for recharging between manufacturing and use, and thus to be practical they must have much lower self-discharge rates than older types of secondary cells.
In a battery electric vehicle (BEV), the state of charge indicates the remaining energy in the battery pack. [4] It is the equivalent of a fuel gauge.. The state of charge can help to reduce electrical car's owners' anxiety when they are waiting in the line or stay at home since it will reflect the progress of charging and let owners know when it will be ready. [5]
Boosting a dead battery through a battery charger can take anywhere from five to twenty minutes depending on the depth-of-discharge (DOD), health of the vehicle battery, and type of engine (engine displacement). AC power is not usually available for a roadside boost. Jump starters are portable battery devices that allow for jump starting of ...
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With time, the charge stored in the chemicals at the interface, often called interface charge or surface charge, spreads by diffusion of these chemicals throughout the volume of the active material. Consider a battery that has been completely discharged (such as occurs when leaving the car lights on overnight, a current draw of about 6 amps).
Snoop Dogg is entering new territory — he’s creating content for kids! The “Drop It Like It’s Hot” rapper and dad of 4 just launched a kids YouTube Channel called Doggyland – Kids ...