Digital Automotive Parasitic Draw/Dark Current Tester — Continuous Power Leak Detector with Voltage & Current Display, No Multimeter Required

Keep your vehicle battery healthy with our Digital Parasitic Draw Tester. Designed for professional and DIY car maintenance, this tester allows you to detect hidden electrical drains without disconnecting your battery. Featuring dual voltage and current display, you can quickly measure standby current and diagnose electrical issues. Usage Instructions: Turn off engine and remove keys. Ensure all doors are locked to allow the car computer to enter sleep mode. Connect black clip to battery negative terminal and red clip to positive terminal. Release negative clamp from battery post to measure parasitic draw. Read the display (50mA = 0.05A). After testing, reinstall negative terminal clamp. Built-in 10A fuse protects the tool — replace if damaged with same specification. Notes: Do not start engine during testing to avoid blowing the fuse. Standby current varies by model; ideal range is 20–50mA for most vehicles. Display starts from 30mA; lower currents show 0, indicating no leak.

• Continuous Power Detection — Test your car battery for parasitic current without disconnecting the battery.
• Dual Display — Real-time voltage and current reading for accurate diagnostics.
• Safe & Fuse Protected — Built-in 10A fuse ensures protection during testing.
• Easy Clip-on Design — Red and black alligator clips allow simple and secure connections to battery terminals.
• Universal Automotive Tool — Ideal for 12V vehicles to detect battery drain, electrical faults, and standby current (typically 20–50mA).