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around 12.5 to 12.8 volts
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∙ 13y ago
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What is the voltage for a car battery whilst car is running?
The voltage for this is 12 volts The alternator/generator should be producing 13.5 to 14.5 volts
What should the voltage be checking battery with car running?
13.5 to 15.5 volts with the engine idling.
Your alt light is on but battery is charging?
Does alt. light stay on after car is shut off? If so could be voltage regulator is defective and overcharging battery when running Does light stay on after car is shut off? If so could be a bad voltage regulator--if so may be overcharging battery Check voltage readings at battery should be around 14.2 with car running -- if much higher than this voltage regulator is bad.
How do you measure the voltage on a car alternator?
get a multi meter that reads dc voltage & touch the black (negative -) wire to the negative battery post & the red (positive +) wire to the positive battery post with car running. car off is battery voltage, car on is alternator voltage.
What is the correct voltage for a car battery?
For a standard "12 volt" battery, the voltage should be 12.6 to 12.8 while car is off, 13-14 while running. Some newer cars (e.g. recent model Hondas) have higher voltage batteries.
How far should the voltage on a car battery drop when cranking the car?
when cranking the engine the battery voltage should not fall below 9.6volts if so replace battery
How do you know if voltage regulator is good?
Check voltage at the battery with car running, it should be well over 12 volts, also check alternator output.
How many voltage are there in thebus smoke lighter plugh?
should be 12.6V same as the rest of the car. it could be as little as 11V when the car is off and battery is running low and as high as 14V with the car running
Why is the car battery charging at 14 volts running and 13.5 not running?
your alternator charges the battery while the car is running. The alternator actually puts out a higher voltage than 14 volts while it is running, but it is reduced by a voltage regulator (most of which are already built into the alternator housing), to prevent damage and premature death of the vehicles battery. While your car is not running, the alternator is not charging the battery, and the 13.5 volt reading you get is just the measurement of the voltage the battery is holding at that given point.
With the key turned on how many volts should your car battery be at?
Automotive Battery VoltagesAssuming your voltage meter is accurate, the battery is fully charged, when the key is turned on, without the engine running, and no accessories turned on, the meter indicated voltage should be 12 volts. When the engine is running and the alternator is charging the battery, the voltage should indicate anywhere between 13 volts to about 14.6 volts.Answer 2 - A wider Acceptable Range13.5 −16 volts is acceptable with the engine running.
Can a car's alternator charge the battery while the car is not running?
No. The alternator has to be turning to produce the charging voltage. It only turns when the engine is running.
Does running a AC in a car affects battery life?
No, because after the car is started, even in traffic, your alternator is putting out the voltage, and that voltage is controlled by the voltage regulator. What Will be affected is your gas mileage/.
