This Battery Load Tester from Draper is suitable for testing 6 and 12V lead acid batteries The Draper 53090 Battery Load Tester is suitable for testing 6 and 12V lead-acid batteries, charging and starting circuits found on most motorcycles, cars, light commercial vehicles, tractors, boats and more. It will test up to 100A. Features: Suitable for testing 6 and 12V lead-acid batteries, charging and starting circuits found on most motorcycles, cars, light commercial vehicles, tractors, boats etc Tests: state of charge, cranking ability, charging system output and starter motor Tests up to 100A Specification: Tests up to: 100A