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There are a couple of ways to look at a battery and give it a "test" to see how good it is. One is to measure the voltage, which is a static test. This in not the most definitive way to check out a battery, but it can give some indication as to how much energy is left in the battery. The "proper" voltage that a battery has will creep down as it is used, and then fall off quite dramatically near the end of its usefulness. For example, if you see a battery that should have 1.5 volts across it and it reads 1.1 volts, most of the energy in the battery has been drawn off. The second way to test a battery is the load test, which is a dynamic (and more "real") test. If we use a battery tester, which is simply a resistive load with a "scale" on it, we can get a better idea of how much energy remains in the battery. The little units basically look at how much the voltage "sags" or "drops" when we apply a load. The scale gives some indication as to the remaining energy reserve based on that test. The more the voltage drops when the battery is loaded and asked to deliver current, the less energy that remains in it.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoWhat you can do is buy a battery tester it looks alittle like a remote and has 2 cords coming out of it that have handles and metal on the ends you take the battery n put the correct cord on the correct side n do the same on the other side then look at the main part of the battery tester it will show how much more the battery can preform.
Wiki User
∙ 14y agothe battery charger has a green light on it
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Why do people still use the term girl power when muscle girl power surpasses it?
i dont know, why dont u tell me.
Do you need a battery to make a circuit?
no, but you do need a power source, such as a cell or a power pack if you do not want to use a battery.
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".
How does battery shunt works in dc power plants?
.
What is the common problem with your motorcycle when your battery has a full charge and there is no power?
Well i would suggest connecting the battery...
You have replaced your starter alternator battery and battery cables on your Saturn why is it still losing power?
Voltage Regulator?
Why you remove battery from notebook when you check power adapter?
Becasue the battery stores electrical power. You may get a shock from the battery if you short circuit it, or accidentally turn the laptop on while checking the power adapter. Alternatively, if you are checking to see if the power adapter is working, you will not be able to tell if the battery is in because it will be providing the power.
Can a corroded battery be cleaned and used again?
Technically yes it can if it still have power, also it depends on why type of battery.
What is the best way to tell if a battery still has life?
The best way to tell if a battery has life is to put it in a low-charge device like a clock and see if it works.
Does the auto door lock keypad work with a dead battery?
No. It does not require very much power. If the battery is not putting out enough power to turn the starter, but is putting out some power it may still work. If the battery is totally dead it will not work.
Your battery died and you put a new battery in your car and the car still does not turn on why?
Is there power to the starter "S" terminal? What car?
How do you tell if car battery is dead or can still take a charge?
below its desired voltage
Battery has been replaced and alternator is good why does truck still loose power?
Try the cables from your battery and alt. Sometimes these can corrode.
If the battery is going out will the alternator still power the car?
the battery job is to start the car so the alternator will kick in after the car is running
If terminals on a battery are off do flashers still work?
No because they need power to work.
Why is a car battery being drained in an 1985 Fiero. A rebuilt alternator has just been installed but the battery is still contueing to be drained?
dead cell in the battery or something is on that is pulling power from the battery.
How do you tell if thebattery is still under warrenty?
The battery should have a code stamped into it. The code will give the manufactured date. Take the battery to a store that sells that brand and they can determine if it is still under warrenty.
