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A Battery tester is a device that is used in determining the charge amount left in a battery. This device helps in the prevention of battery failures. You should also ensure that the battery is not misused by sticking to the manufacturer’s guidelines. By doing so, you will be aiding your battery to function to its highest potential. Battery testing is the only way to keep track of the battery capacity and the battery health. A good battery monitoring program can alert the user of any underlying deterioration. A good way to monitor your battery is to constantly measure the capacity. How Does The Battery Test Function? One or two leads are usually found in electronic battery tester; metallic studs are usually characteristic of testers with single lead for specific types of batteries. The positive (+) or negative (–) pole is pressed on the stud and then the lead is made to be pressed on the other pole. A red and black lead is featured in electronic testers with double leads; the black lead is placed to the negative (-) pole of the battery while the red lead is pressed to the positive (+) pole. This is a typical description of the wire leads. A simulated load is created by a capacitor calibrated to each battery type supported by the tester. This is typical of a battery tester with studs and a single lead. The calculation of the battery duration under the simulated load is carried out by the electronic circuitry in the tester. A rotary switch usually accompanies electronic testers with 2 leads. These functions choose the battery type being tested. For the specific battery type that is being tested, the switch makes a selection of a suitable capacitor and a load. This process is described as a realistic load. If the battery‘s current is tested with a suitable load, the percentage of time under the stated load that the battery would last is calculated by the battery tester. The percentage calculated is equivalent to a reasonable maximum amount of time that the battery type should linger. The outcome is then presented as a percent (%) charge that is left in the battery. This result would vary in the various testers. Some might show the remaining charge as near full capacity with green indicator. Some present it as partly discharged using a yellow indicator. Others would show it as just a percentage while other will indicate this as being almost discharged using a red indicator. This is a good description of how the battery strength is indicated. Another thing to know is that the rate of battery discharge varies with different batteries. It is expected that the various batteries be operated under different loads. A good feature to look for in a battery tester, is that it has the ability to compensate for variations in discharge times and patterns. There should be elements of automation in sensing the battery type or they should have separate settings for the various battery technologies obtainable in each standard battery size. In conclusion, there are differences in testing various batteries. Knowing how the battery testers function is essential so that you know what to look out for when selecting this device.
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Mike Richardson is author of this article on Battery testing. Find more information about Battery maintenaince here.
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