Electronic Load Tester 60W Constant Current Battery Capacity Test Module 1~30V 9.99A Item Type: Electronic Load Tester Material: PCB and aluminum alloy Working Mode: Constant current (CC) single mode Discharge Current: 0.20-9.99A step by 0.1A or 0.01A Maximum Discharge Current Error: 0.7%-0.01A Maximum Capacity Test Error: 0.5A 2.5%, 2A 1.5%, 5A and above 1.2% Peak Power: 60W super power automatic limit maximum current (for example, maximum 9.99A at 6V under 60W, maximum 3.00A at 20V) Maximum Battery Test Statistics: 999.9Ah or 9999Wh, reaching the stop value test (the first value of the stop condition) Positioning Hole Position: Approx. 60 x 88mm / 2.36 x 3.46in Diameter: Approx. 3.2mm / 0.13in, 5mm / 0.2in Base is installed I. Mode Setting (default factory is electronic load mode): Press and hold the start/stop button (small red button) and power the tester at the same time, release the button until Fun* is displayed, and change the setting by rotating the knob. "Fun1" is the electronic load mode, "Fun2" is the battery capacity test mode. Press the start/stop button to enter the buzzer setting, and rotate the knob to set "bEon" (buzzer on) or "bEoF" (buzzer off). After the setting is complete, press the start/stop button again to restart the tester. II. Electronic Load Mode: 1. Turn on the 12V working power supply and enter the electronic load mode. Ensure that the device is in the stopped state (the "RUN" light is off; otherwise, press the start/stop switch to turn off the load). Connect the tested power supply to the test input power port (P+ P-), and ensure correct polarity. Note: When in alarm state, the current can only be decreased, not increased. The automatic power failure saving function saves the set parameters and operating status. After power is restored, the status and data before power failure will be fully restored. III. Battery Capacity Test Mode: 1. The tested battery should be fully charged using a dedicated charger before testing. Additional Note: 2. The automatic power failure saving function records the set parameters, all parameters and states during power failure in the test process, and alarm state at the end of the test. All data will be automatically restored after re-powering. Fail Safe Code and Meaning: Err3: Internal resistance of the line is too high or the battery cannot handle the set discharge current. Err4: Circuit fault. Err6: Working power supply is unsuitable. Use a standard 12V regulated power supply with current not less than 0.5A. OtP: Overheat protection. Ert: Temperature probe fault or temperature too low. OPP: Instantaneous over-power condition in electronic load mode.