How to measure the battery current of a base station

How to test a battery?

#1 - Select the DC current function using the dial and keep it at 200mA since we know that the amperage of the battery will be around 100mAh. #2 - Connect the test probes similarly as you did for voltage measurement and check the display.

How to measure battery voltage?

#1 - In Part 1, we will measure the voltage of the battery. To do this, use the switch dial to select DC voltage measurement. Since battery generates DC power, we will measure DC voltage. #2 - We already know that the voltage of the battery is 9V maximum, so we will point the dial to 20V (as shown) i.e. the higher range

How to measure the current of a battery?

However, to ensure that it can supply enough current to a load, let’s also measure the amperage in milliampere-hour (mAh). In Part 2, we will measure the current of the battery. #1 - Select the DC current function using the dial and keep it at 200mA since we know that the amperage of the battery will be around 100mAh.

How does a BMS measure a battery pack?

Generally, a BMS measures bidirectional battery pack current both in charging mode and discharging mode. A method called Coulomb counting uses these measured currents to calculate the SoC and SoH of the battery pack. The magnitude of currents during charging and discharging modes could be drastically different by one or two orders of magnitude.