# Is 12.4 Volts OK Car Battery?

## Is 12.4 a good battery?

12.5 volts – Your battery is at a healthy state of charge, but we’d recommend re-checking it within a few days to ensure the voltage hasn’t dropped any further.

12.1 – 12.4 volts – Your battery is partially discharged and should be recharged as soon as possible, using a suitable battery charger..

## What voltage should a car battery be at rest?

12.6VThe resting voltage should ideally be no lower than 12.6V. Bear in mind that when a battery goes down to 12.2V it’s actually only 50% charged, and below 12V it’s classed as discharged.

## What is the voltage of a dead 12 volt battery?

Resting fully charged 12-volt batteries are around 12.8-12.9 volts, and flat dead ones are at 12.0 volts, so 12.4 volts on a resting battery means it’s about 50% charged.

## Is 11.9 volts enough to start a car?

A flat battery can show 12 volts , but not be good enough to start a car . … 11.9v indicates the battery is completely discharged. Anything under 12.2v means the battery is in a state of discharge, and a healthy battery should show 12.6v in a static state.

## Is 12.2 volts enough to start a car?

12.2v is enough to start the car. It’s a 12v battery after all, it’s just voltage settling after being at ~14v when driving.

## Is 11.8 volts enough to start a car?

Even with a new battery 11.8 volts is normal before starting. There is always a drain on the battery from the car’s ECU.

If your battery is reading 0 volts, chances are the battery experienced a short circuit. If the battery cannot reach higher than 10.5 volts when being charged, then the battery has a dead cell. If the battery is fully charged (according to the battery charger) but the voltage is 12.5 or less, the battery is sulfated.

## At what voltage will a car not start?

Even though most cars have 12-volt batteries, 12 V is not enough to jump-start a vehicle. If your measurement device shows this value, the battery is discharged. This may cause sulfation and shorten its lifespan. Therefore, you should always keep your batteries properly charged.

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

Shouldn’t go much below ~12.6v and can go up to 13 to 14+volt while running/charging. Any decent car battery will only lose at most 0.01V maximum, the security of the car will draw some current but it should only be low. 0.045 volts per day.

## What voltage should a 12 volt car battery read?

12.6 to 12.8 voltsCheck the reading. A fully charged battery will typically display a voltmeter reading of about 12.6 to 12.8 volts. If your voltmeter is showing a voltage anywhere between 12.4 and 12.8, that means your battery is in good shape.

## What should car battery voltage be after sitting overnight?

12.5 voltsThe battery should maintain between 10 and 12.5 volts after a night of not being used. It should have about 10 volts to start the vehicle. Less than that it’s likely the engine will not start.

## How do you know if a 12 volt battery is good?

If the battery is good, the reading will be higher than 12 volts. It will hit the 12.8 volts if it is fully charged and 12.1 volts if it is about 50 percent charged. If is it about 11.9 volts or lower, this means it isn’t charged.

## At what voltage is an AGM battery flat?

Standard lead-acid battery: 12.6V = 100% charged (For AGM or GEL battery: 12.8V = 100%) For all types 11.8V = 0% (i.e battery fully discharged) Always try to keep above 12 Volts minimum (=20% capacity approximately when battery is not loaded).