How to measure aluminum battery
A multimeter cannot measure the capacity of a battery. The capacity of the battery refers to the total amount of electricity released when the battery is fully charged and discharged until it stops discharging. That is, the capacity Q = the product of the current I and the discharge time t. There are special instruments for measuring other parameters of batteries, such as battery testers.
A multimeter is a magnetoelectric instrument with a rectifier that can measure various electrical parameters such as AC and DC current, voltage, and resistance. For each electrical quantity, there are generally several ranges.
Also known as a multimeter or simply a multimeter. The multimeter is composed of a magnetoelectric ammeter (head), a measuring circuit and a selection switch. Through the transformation of the selector switch, various electrical parameters can be easily measured.
1. Before using the multimeter, "mechanical zero adjustment" should be performed first, that is, when there is no electricity to be measured, make the pointer of the multimeter point to the position of zero voltage or zero current.
2. In the process of using the multimeter, do not touch the metal part of the test pen with your hands, which can ensure the accuracy of the measurement on the one hand, and personal safety on the other hand.
3. When measuring a certain amount of electricity, it is not possible to change gears while measuring, especially when measuring high voltage or large current, more attention should be paid. Otherwise, the multimeter will be destroyed. If you need to change gears, you should disconnect the test leads first, and then go to measure after changing gears.
4. When using the multimeter, it must be placed horizontally to avoid errors. At the same time, pay attention to avoid the influence of external magnetic field on the multimeter.
5. After the multimeter is used, the transfer switch should be set to the maximum level of AC voltage. If it is not used for a long time, the battery inside the multimeter should also be taken out to prevent the battery from corroding other devices in the meter.
