# How much battery does it take to start your car?

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Starting the engine will require 250 amps for a half second, and the most current a 1.5-volt AA battery can produce is 10 amps. Given the above, you’d need to start with a string of eight AAs to get your necessary 12 volts.

## How much battery does starting your car use?

The battery is your average sized car battery which is around 50 amp hours, so one start is about 6% of the battery capacity. The generator on that car is 30 amps, so it can generate 30 amp/hours in one hour, meaning it can replace those 3 amp hours in about 1/10th of an hour — 6 minutes.

## How many AA batteries would it take to start a car?

You need 8 batteries to produce 1 amp at 12 volts. So 500 times 8 = 4000 AA cells to start your car.

## Is 11.9 volts enough to start a car?

The normal voltage needed to start the car begins from 12.6 volts. At the time of exploitation, this parameter is between 13.7 to 14.7 volts.

## Does revving the engine charge the battery?

But when your engine turns faster, the engine’s alternator also turns faster. … That way, all of the alternator’s power can be directed to recharging the battery. Once the car starts, you can rev it up to charge the battery faster, but the best way to do that is to just drive it.

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## Is 10 volts enough to start a car?

This voltage range means the battery is in good condition for starting the vehicle. … As soon as the car is turned on, the voltage reading will drop for a quick moment, but should not fall below 10 volts. If it falls below 10 volts, it means the battery does not have sufficient turnover strength and is prone to failure.

## Is 300 amps enough to start a car?

Smaller engines will need about 300 amps to jump-start the car, whereas bigger ones will require 1000 amps. If you do not have a jump starter around and wish to jump-start your car using another motorist’s battery, you should also confirm the amps of their batteries.

## At what voltage will a car not start?

In general, while both the engine and the generator are in the working state, the voltage of the battery should be within 13.7 – 14.2V. If more, then it is harmful to the battery, if less, then it is not fully recharged.

## How many volts should a car battery lose overnight?

If you measure the voltage immediately after the end of a drive, it should be more like 13.2, and drop to 12.7 within a few minutes as the chemical reactions in the battery slow down and stop when you stop charging it.