TopDiag

The TopDiag BT300 is a handheld 12V/24V battery load tester that quickly evaluates battery health, starting capacity and charging system performance for cars, trucks, motorcycles and more. If you need fast, reliable battery diagnostics without guesswork, the BT300 delivers clear readouts for state of...

The TopDiag T300Pro is a 3-in-1 car diagnostic tool that combines a full OBD2 code reader, a 6-mode 12V battery and charging system tester, and an ECU breakout/cranking test in one handheld unit. Designed for drivers, DIY mechanics and small shops, the T300Pro puts...