[3-in-1 Battery Tester, Charger & Repair Tool] KW520 combines three essential functions in one device – accurately tests battery health, charges 12V 10A & 24V 5A batteries, and repairs aging batteries with advanced pulse technology. Save money and space by replacing multiple tools with this all-in-one solution. [Accurate Battery Health & System Testing] Quickly measures Cold Cranking Amps (CCA 100-2000), internal resistance, voltage, and State of Health (SOH). Tests starting/cranking systems and charging systems including alternator and rectifier. Detects bad cells and identifies if the battery needs replacement. [Fully Automatic Smart Charger] Automatically charges batteries as low as 2V with 7-stage output, then switches to trickle maintenance mode. No overcharge or overheating – just connect and let it work. Compatible with 12V lead-acid batteries from 4AH to 150AH [Pulse Repair Technology] Detects battery sulfation and acid stratification automatically. Uses pulse voltage and current to restore lost battery performance and extend battery life. One-click repair brings old batteries back to life [Wide Compatibility & Multi-Language] Works with all automotive starting batteries: Regular Flooded, AGM Flat Plate, AGM Spiral, Gel, and Lithium (LiFePO4). Perfect for cars, trucks, motorcycles, boats, lawnmowers, and more. Supports 8 languages: English, German, French, Dutch, Russian, Spanish, Italian, Portuguese ASIN B0H82GYT58 Brand KONNWEI Amperage 10 A Unit Count 1 Count Item Weight 0.75 kg Manufacturer KONNWEI Model Number KW520-US Input Voltage 220 volts_of_alternating_current Current Rating 10 A Item Highlight 12V 10A & 24V 5A 3-in-1: Battery Tester, Charger & Pulse Repair – Test CCA, Charge, Restore Output Voltage 12 volts_of_direct_current Mfr Part Number KW520 Number of Items 1 Number of Packs 1 Compatible Devices cars, trucks, motorcycles, boats, lawnmowers Warranty Description 2 Item Dimensions D x W x H 6.1 D x 2.36 W x 3.74 H