Car batteryPeru
130. Car battery
A car battery is an electrical energy-storage device that supplies power to a vehicle's electrical system. In conventional petrol and diesel cars, the 12-volt starter battery provides the high current needed to start the engine and supplies electrical equipment when the engine or charging system is not providing enough power.
Car batteries gradually lose charge and capacity with age and use. A weak battery can cause slow or unsuccessful starting, electrical problems or warning messages, and the replacement battery should have specifications suitable for the vehicle.
Wikimedia.org • Filipograf • CC BY-SA
What does a car battery do?
A low-voltage vehicle battery powers electrical equipment and control systems. In many combustion-engine vehicles it also supplies the starter motor. In an electric-drive vehicle, the auxiliary battery has a different role from the high-voltage traction battery that supplies propulsion energy.
🔗 afdc.energy.gov • US Department of Energy AFDC, auxiliary versus traction battery
🔗 varta-automotive.com • VARTA, replacing AGM/EFB start-stop batteries
Can any replacement battery be fitted to a car?
No. The battery must have specifications and technology suitable for the vehicle. Cars equipped with start-stop systems, for example, may require AGM or EFB battery technology designed for repeated starting and charging cycles.
🔗 afdc.energy.gov • US Department of Energy AFDC, auxiliary versus traction battery
🔗 varta-automotive.com • VARTA, replacing AGM/EFB start-stop batteries

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