Konnwei KW520 Battery Tester The Konnwei KW520 is an advanced multi-function device that uses state-of-the-art technology to easily, quickly, and accurately measure actual cold cranking capacity, battery health, and common faults in the vehicle's starting and charging systems. The KW520 is especially helpful in automotive repair shops because it can pinpoint the problem, allowing for quick vehicle repair. With the charger function, the KW520 can charge 12V lead-acid car starter batteries with a capacity from 4AH to 150AH, including regular lead-acid batteries, AGM flat-plate batteries, AGM spiral batteries, Gel batteries, Lithium Iron Phosphate (LiFeP04) batteries, etc. The KW520 also features a battery repair function to restore lost performance by applying pulsed voltage and current at a specific frequency. Product code: KW520 Konnwei KW520 car battery tester Measured voltage range: 12 - 24 V 3-stage automatic charging Overcharge protection Incorrect connection protection Short circuit protection Overheating protection Fan cooling Input voltage: 100 - 240 V / 50 – 60 Hz Output voltage: 12 ; 24 V DC / 5 – 10 A Minimum voltage: 2 V (for tester), 5 V (for charging) Battery range: 4 – 150 Ah Thermal protection: 65°C ±5°C Dimensions: 15.5 x 9.5 x 6 cm Interface language: English, French, German, Dutch, Spanish, Russian, Portuguese, Italian