# Quick Answer: How Much Time Battery Takes?

## How long does it take for a battery?

Normally, a deep cycle battery often holds 48 amps so if you charge it at 1 amp, it will take you 48 hours.

Similarly, if you charge your car battery at 4 amps, the total time to make the battery fully charged is about 12 hours.

Therefore, if you need a quick charger, a 4 amp charger is not a good option for you..

## How long does a car need to run to charge the battery?

about 30 minutesIf this is the case, call for professional help. If your car does start, let it run for a few minutes to help charge the battery further. Unhook the clamps in the reverse order of how you put them on. Be sure to drive your car for about 30 minutes before stopping again so the battery can continue to charge.

## How do you calculate how long it will take to charge a battery?

Charging of battery: Example: Take 100 AH battery. If the applied Current is 10 Amperes, then it would be 100Ah/10A= 10 hrs approximately. It is an usual calculation. Discharging: Example: Battery AH X Battery Volt / Applied load.

## How long should a battery hold its charge?

3400 hours equals 141 days during which your battery will be able to hold the required charge. If the battery is in the car and connected to its onboard network, this period can be cut down to about half of it.

## 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.

## Can a completely dead battery be recharged?

While your vehicle’s alternator can keep a healthy battery charged, it was never designed to completely recharge a dead car battery. … With a seriously depleted battery, your best option is to connect it to a jump starter or a dedicated battery charger either before or immediately after a jump-start.

## Can you leave a car battery charger on overnight?

Even though there is no risk of overcharging with the use of a high quality charger, the battery should not remain connected to the charger for more than 24 hours. A full charge is usually achieved by charging overnight. … Even after a deep discharge, some chargers enable at least partial reconditioning of the battery.

## Does revving engine charge battery faster?

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.

## How long can a car sit without being driven?

two weeksDon’t let your vehicle sit idle for more than two weeks – at least get your vehicle started and get it running for a while. You’ll end up saving yourself time and money on repairs, and you’ll ensure that your vehicle is ready to go once you need it again.