Most often need of measurement of capacity arises at owners of motor transport when checking operability of accumulators. There are several simple steps truly to measure their capacity.
Instruction
1. The accumulator is a chemical source of current in which electric current is developed due to the chemical reactions proceeding in the accumulator.
2. Thus, the principle of operation of the accumulator a little in what differs from the ordinary battery. Capacity of the accumulator is quantity of electricity which can give the new or completely charged accumulator.
3. Capacity it is measuredin amperehoursof the - accumulator or milliampere-hours. So, if the capacity of the accumulator is 2000ma-hour (milliampere-hours), it means that the accumulator will be able to give current 2 thousand milliampere within 1 hour or the 200th milliampere within 10 hours.
4. For determination of capacity, the accumulator needs to be charged at first completely, then to discharge the set current and to track time of a full discharge of the accumulator. Then it is necessary to calculate the work of current for a while for which the accumulator was discharged, the received size also will be accumulator capacity.
5. Battery capacity is the same way measured. The point of measurement of capacity of the accumulator or battery is that it is possible to learn time for which the accumulator or the battery will completely be discharged. After that the accumulator will demand a recharge, and the battery will come to full unfitness.