subject: Several Tips to Test a Button Battery [print this page] Button battery is known as a small battery which is commonly used to power the small electronic devices. This button battery gets its name because it is round and resembles buttons or coins. Many people are actually not really familiar with this quite new type of battery. When you are having electronic device which stops working, it may be caused by a simple matter of the dead or dying button battery. At this time, this article is going to give you some tips of a testing method for the button battery that will help you to check its condition.
As the first step, you should remove the battery from your device and then you need to inspect it for determining the battery voltage. The voltage is usually marked on the battery. It is known that most of the button batteries are made between 1.35 and 3 volts.
As the second step, you need to set the multimeter for displaying the voltage on the DCV scale.
The third step that you should do is to determine the positive side of your battery by finding side with a "+" that marked on it. After that, you need to touch the positive probe of multimeter (red) anywhere on this side.
The fourth step is to touch negative probe of multimeter (black) to the negative side of your battery. The negative side is of course in the opposite side of the positive side.
The last step is to take a note of the voltage that is displayed on the multimeter. If you find that the voltage is about 10 percent less than the marked voltage on battery, you need to replace it. For instance, the 1.5 battery must show the voltage of at least 1.35 volts, while the 3 volts battery must show the voltage of at least 2.7 volts.
