USB Current Voltage Capacity Tester Volt Current Voltage Doctor Charger Capacity Tester Meter Mobile Power Detector Battery Test
Product specifications:
Model: KWS-V20
Name: USB Tester
Possible range: 4 - 20V ± 1%
Current: 0-3A ± 1%
Time: 0-99H
Capacity: 0-99999mAh