How to test a car battery

The video tutorial explains how to measure car battery voltage using a multimeter, highlighting the importance of maintaining proper voltage levels. It discusses the voltage drop during engine start due to the starter motor's high current draw and the role of the alternator in recharging the battery and powering the car's electrical systems. The tutorial also covers the battery's function in starting the engine and the need for a jumpstart when the battery is depleted.

What voltage should you expect to see on a multimeter when the car battery is functioning properly?

• Around 14 volts

• Around 12.6 volts

• Around 10 volts

• Around 11 volts

What happens to the battery voltage when the car engine is started?

• It remains the same

• It drops to around 11 volts

• It increases to around 14 volts

• It drops to around 9 volts

What is the primary function of the starter motor in a car?

• To provide power to the car's lights

• To recharge the battery

• To engage the flywheel and start the engine

• To maintain a constant voltage

How much current does the starter motor typically draw from the battery?

• A few milliamps

• Tens of amps

• A constant current

• Hundreds of amps

What role does the alternator play when the car engine is running?

• It reduces the engine's fuel consumption

• It recharges the battery and powers electrical systems

• It provides power to the starter motor

• It stops the battery from discharging