Battery internal resistance tester 1.77 inch screen, accurate

FOR BATTERY: This tester is specifically designed to measure the capacity of batteries. 1.77 inch display screen can simultaneously display information such as internal resistance, capacity, voltage, current, battery . MULTI MODES: The detector supports single channel capacity and internal resistance measurement; Supports separate charging and discharging, with a maximum of 9 charging and discharging cycles in automatic mode. HIGH ACCURACY: Using 2 wire to test the internal resistance of the battery, the numerical accuracy is high when the battery is charged. Item Type: Battery Internal Resistance Tester Material: PCB Battery: 2 x lithium batteries (not included) (power supply x 1, testing x 1) Model: XH M239 Display Accuracy: 0.1 Measurement Accuracy: 1mAH Standby Current: 5mA Discharge Current: About 500mA Load Power: 10W 8 Ohm Applicable Batteries: Suitable for batteries meeting stop discharge voltage of 2.5-3.5V, 2.8V start to 4.2V charged