FDY10-S is a device with integrated double function: discharging and measurement.
Work with Ni-Cd, Li-Ion, LiFePO4, Ni-Mh, Li-po and etc. 
During discharge, the LED shows the voltage, the current, the power in real time. After completing the battery discharge, it will display the results of the measurement, such as the download time.

The host and the heating elements are separated, high stability.
The measurement error is minimal and the most accurate results are due to the application of the measurement mode of the 4-wire system.
Availability to configure the automatic slide show function to verify visually and clearly the operating states and parameters, due to the display mode based on the combination of the LED indicator light.
Operation sound indication and alarm for the end of the discharge.
Larger voltage detection range for the battery due to the 2-wire and 3-wire detection modes.

FDY10-S Battery Tester, Charge and Discharge Time Meter features:

- Final discharge voltage of the battery: 1 - 20 V
- Accuracy of voltage measurement: 0.01 V
- Accuracy of current measurement: 0.01 A
- Accuracy of power measurement: 0.1 W
- Discharge current: Battery voltage is less than 10V: 0.1 A - 10 A. Battery voltage is more than 10V: 0.4 A ~ 10 A
- Measuring the accuracy of battery capacity: Less than 100 AH: 0.01 AH; More than 100AH: 0.1 AH
  It includes:
- 1 Tester FDY10-S
- 1 power supply: Input 100-240 VAC 50/60 Hz 0.2A, output 5 VDC - 1A
- 2 clips to connect the battery (red and black)

- 1 discharge resistance (load)
- Package size: 18x12x10 cm
- Weight: 1kg (2 Lbs)