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A battery may have a small voltage potential but not the "CAPACITY" to deliver amperage. For instance if you were to measure the voltage at the battery terminals with a Volt/Ohm meter (VOM), you would get a reading of say 12+ volts. As soon as you turn something on such as a headlight or heater motor, the voltage drops down or goes to 0 volts, you would have a battery that is bad or under capacity. It also could be caused by a "BAD CONNECTION" such as a loose battery post clamp. It is critical that when you test a battery, you test it at the battery posts themselves without the cables attached to rule out a bad connection. This is done with a battery load tester. As many people do not have the equipment to test a battery, batteries can be tested at many automotive parts retail outlets across the country for a free charge.
What else can I help you with?
Does a 9 volt battery have more power than a 6 volt battery?
Power or energy cannot be measured in volts. The only thing you can say is one - the 9 volt battery - has a higher voltage than the other, the 6 volt battery. If you are asking about the power or energy contained in a battery, then the amount iof energy it can supply depends mostly on its physical size that is determined by the battery "type".
Whats the difference of using 4.5 volt battery instead of 9 volt battery in electronic devices?
the device may not work
Can you charge a 6v battery with a 9v charger?
no, if you charge 9 volt battery with 12 volt battery you will destroy 9 volt battery
Is a AA battery a 12 volt battery?
No, a double "a" battery is a 1.5V battery.No, a double "a" battery is a 1.5V battery.
Will the magnetic pull disappear when alternator is bad?
The way to test an alternator is to take it out and take it to a parts store, most will test it for free. If you want to test your alternator yourself you will need a volt meter. Start the car and have someone rev the motor to 2000 rpms and put your volt meter across the battery terminals ( pos to pos, neg to neg ). You should read 13.5 to 14 volts. If the reading is higher the voltage regulator is bad. If the reading is lower your alternator is not charging the battery sufficiently.
When you have a battery how do you know if it a 6 volt or a 12 volt battery?
To determine if a battery is 6-volt or 12-volt, you can use a multimeter to measure its voltage directly. Set the multimeter to the DC voltage setting and connect the probes to the battery terminals; a reading of around 6 volts indicates a 6-volt battery, while a reading of around 12 volts indicates a 12-volt battery. Additionally, you can check the battery's labeling or specifications, which typically indicate the voltage.
What is the resistor of 18 ohms when connected to a 9v battery?
Even though it is connected to a 9 volt source, it is still a resistor.
Do you charge a battery for a tractor on 6V 2amps or 12V 6 amps?
6volts 2amps for 6 volt battery, and 12 volts 6amps for a 12 volt battery. Don't charge a 6 volt battery on the 12 volt setting or it will explode!!!!!!!!! you're ok going the other way though.
What is a good voltage reading for a 12 volt battery?
For lead-acid chemistry, as in a car battery, think 13.6 volts DC.
Can a 9 volt battery short out and cause a fire?
It's possible. Not likely to be the battery itself it that happens, though.
Battery goes dead in 86 corvett in about 2 days wheather you drive it or not New battery and when driving volt reading on dash reads 13.2 to 14.5?
this could be from a few different things, but since you said it dies whether you drive or not narrows it down a little more. even though the battery is new it may be a faulty battery, theres always the chance of that.but there also may be a loose wire causing your battery to short.
Will a 12 volt Black and Decker battery work in a 18 volt tool?
No, even if it can fit, the tool will not have sufficent power.
Can you jump a 6 volt battery with a 12 volt battery?
No
What is a 6 volt dry cell battery?
if it is any think over 1 volt it is not a cell battery it is just a 6 volt battery if you had a 1 volt then it would be a cell battery
What is the reading on your alternator supposed to be?
With the battery fully charged (12.68 Volts) and a volt meter connected to the positive and negative battery posts, run engine at idle with no accessories on, voltage reading should be aprox 14.2.
Can you use 7.5 volt charger for 6 volt battery?
No, it will overcharge the 6 volt battery.
Use volt meter to check 12 volt battery charge level?
With your volt meter, touch the positive battery with the red wire and black to ground (neg, ) on the battery. With the engine off you should have a reading of anywhere from 12.2 to 12.6 volts. That is good. With the engine running at high rev's you should have a reading of any where from 14 to 14.5. When you charge the battery with a 2 amp charger it will take several days and the charge level will go up to 14.5 or so volts.
