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Take a DC volt meter and check the voltage at the battery. Red probe on positive + terminal and Black probe on negative - terminal. If it reads 12.6 volts it is fully charged. 12.4 and it is 75%, 12.2 and it is 50%, 12.0 and it is 25% charged. Less than 12 volts and it is considered a dead battery.
What else can I help you with?
Why car has poor starting?
Check the battery and see if it is charged or needs to be changed. Check the battery cables Check the starter condition
Why isn't my Android tablet turning on?
Check your power . Battery and see if it is charged.
What causes a car not to start or turn over or click or nothing?
This could be the voltage regulator. Both the positive from the battery and the starter would be connected to it.
Is the battery fully charged?
Yes, the battery is fully charged.
If you have new battery and alternator but battery is still not staying charged what could be the problem?
Something is draining the battery. Check all lights. Glove box, trunk, etc. Also check the power window switch.
How many hours does a lawn mower battery have to be on a float charger?
A battery float charger is intended only to keep a fully charged battery from losing its charge. It will NOT work to charge a battery that is discharged or damaged. Check the voltage of the battery to be charged. Do not use charger if the battery voltage is less than 9.6 volts.
Why does your 2003 GMC envoy not crank when you turn the ignition The battery is fully charged?
Check the starter.
My sons BMW will not start?
First, check if you battery if properly charged, and 95% of the time that is the reason.
What if your 95 volkswagan passat is boiling your battery?
The battery is most likely being over-charged. Check the alternator diodes or the voltage regulator.
What would cause a 1995 rodeo to not get enough amp so it could start?
Low/bad battery, bad battery connection. If the battery isn't getting fully charged you might not be able to start. If it isn't getting charged, check the alternator.
Does a battery's weight increase when it is charged?
No, a battery's weight does not increase when it is charged.
How you can check 12 volt battery?
Check the voltage at the battery with a DC volt meter. It is reads 12.6 volts is it 100% charged. 12.4 volts 75%, 12.2 volts 50%, and 12.0 volts 25% charged. Less than 12.0 volts is a dead battery. If the battery will not hold a charge with the negative cable disconnected it has a dead cell and must be replaced.
