Hangzhi PIU DC Current Meter Improved The Testing Procedure For Lithium Battery Charging and Discharging Test Equipment

Lithium-ion battery and battery pack charge and discharge test equipment is the core equipment for testing the charge and discharge performance, battery capacity, and battery charge and discharge safety of lithium-ion batteries. Therefore, whether the measurement characteristics of charge and discharge test equipment are accurate or not plays an important role in the inspection of battery safety performance Crucial role.
The traditional battery charging and discharging equipment calibration is a combination of shunt and multimeter, which has many problems, such as:
1) Unable to meet the accuracy requirements of measurement and calibration
Level shunt>0.1 level charge and discharge test equipment
2) cumbersome to use
An external multimeter is required to measure the voltage, and it needs to be converted into current, which is cumbersome to use
3) Connection error
The artificial contact resistance of the terminal affects the measurement accuracy
4) Temperature error
Drift error and thermal emf error over time, measurement accuracy cannot be guaranteed
5) Low efficiency
Generally, a charging and discharging device needs to be calibrated charging: current, voltage, discharging: current, voltage, at least 20 detection points, one device takes at least one and a half hours, and one worker can inspect 5 devices, which is low in efficiency and high in cost. .