How to Test the Remaining Charge of a Battery with a Multimeter
A multimeter can not only be used to measure the resistance of the object being measured, but also to measure AC and DC voltages. Even some multimeters can measure the main parameters of transistors and the capacitance of capacitors. Fully mastering the usage of a multimeter is one of the most fundamental skills in electronic technology. Common multimeters include pointer multimeters and digital multimeters. A pointer type multimeter is a multifunctional measuring instrument with the meter head as the core component, and the measured values are read by the pointer on the meter head. The measured values of a digital multimeter are directly displayed in digital form on the LCD screen, making it easy to read. Some even have voice prompts. A multimeter is an instrument that uses a common meter head and integrates a voltmeter, ammeter, and ohmmeter.
The DC current range of a multimeter is a multi range DC voltmeter. The parallel connection of a closed circuit voltage divider resistor in the meter head can expand its voltage range. The DC voltage range of a multimeter is a multi range DC voltmeter. Connecting a voltage divider resistor in series with the meter head can expand its voltage range. The corresponding range varies depending on the voltage divider resistor. The head of a multimeter is a magneto electric measuring mechanism, which can only measure AC power by converting AC power to DC power through diodes.
Home digital multimeters can easily detect voltage, current, resistance, diodes, and more. Some multimeters can also directly detect battery level, which is very convenient. Today we used a multimeter that does not have a direct battery detection function. We used a voltage detection mode to check the battery level.
To check the battery voltage, connect the red probe of the multimeter to the V Ω vA range, where V represents the voltage detection; Connect the black pen to the COM file.
Let's take another look at the battery. A typical No. 5 dry battery has a nominal voltage of 1.5V, while a rechargeable battery has a nominal voltage of 1.2V.
So when the multimeter is turned to the voltage detection mode, it can be directly turned to 2000mV, which means the maximum detection is 2V.
