- Lithium-ion batteries are charged using the constant-current, constant-voltage (CCCV) method, which manages voltage and current.
　In CCCV charging, when the cell voltage is low, the current is constant. When the cell voltage reaches 4.2V, the charge becomes a constant voltage charge, and the amount of current is reduced so that it does not exceed 4.2V.

- Lithium batteries require highly accurate control of charging voltage and charging current.
　The PSA-2401 has an extremely small input resistance of approximately 40 mΩ (±5 A type and ±2 A type), enabling highly accurate measurements.

- Since measurement is made with a very small shunt resistance, voltage drop is small. It can be used for current measurement of low-voltage devices and evaluation of battery and battery charge/discharge characteristics.

What this measurement can do
- For constant current voltage charge measurement of rechargeable batteries of various mobile devices.
　 Examples of mobile devices: smartphones, wireless earphones, wearable devices, hair irons, laptop computers, etc.
- CAN 1ms update and 16bit analog 1ms update can be output simultaneously (option)
- Setting and logging are possible through the ammeter's USB Type-C connector using Coco Research's measurement management software LINKSHIP (free download).

Selection Points
Current measurement
　- 16bit analog output with 1ms update and CAN communication (option)
　　 Real-time measurement and feedback control of current values

Low cost
　- PSAL-2401: Low-cost DC ammeter.
　　 High-precision (16bit, update time: 40ms~) analog output is available as an option.