How many amps does an alternator put into the battery?

A: Charging time depends on the battery and the charger. For a battery being charged by the car’s alternator it can take an hour of driving to get it fully charged. Car batteries range from 40AH to 110AH, and alternators range from 45 amps to 200 amps.

Can a 24v alternator charge a 12v battery?

The 24v systems that employ 12v batteries can be recharged with a 12v alternator by simply being plugged in like any other 12v battery. If the 24v system uses an actual 24 volt battery, the electricity will have to pass through a voltage converter before it goes from the 12 volt alternator to the battery.

Do alternators charge batteries?

The alternator supplies all of them with direct current (DC) power. Your alternator is also responsible for charging your car battery while driving. The alternator works by turning mechanical energy into electrical energy.

Can a battery charger damage an alternator?

No, charging the battery from home should not damage the alternator. There is however no need to constantly charge it. If the vehicle is being used frequently there’s no need to keep charging it at all really as the alternator will keep the battery charged up just fine.

Can you charge a 12V battery with a 24V battery?

Yes, if you regulate the voltage down to the right amount. If you just plug a 12 volt a battery into a 24 volt charger it will die in a matter of hours.

Will an alternator fully charge a dead battery?

A) Alternators are designed to maintain a battery’s charge, not to recharge a dead battery. Charging a dead battery with an alternator will result in premature alternator failure.

Will an alternator drain a battery?

The alternator is responsible for recharging the car battery and powering electrical systems of the car such as the radio, lights, ignition, etc. This, in turn, will drain your car battery and cause the car not to start.

What voltage should the alternator charge the battery at?

A good alternator should maintain battery voltage between 13.9 and 14.8 volts (14.2 is optimum). Even worst-case, with all accessories turned on, there should be at least 13 volts at the battery.

How long does it take an alternator to drain a battery?

In this situation, the battery could last as little as 30 minutes. If you are lucky and could get up to two hours. Note: In case you have to start the car without an alternator, don’t turn off the engine once you’re going. Starting the car flattens the battery down quickly.