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Automotive Leakage Current Tester | OBD Plug-in · Leakage Detection Without Power Interruption · Red and Blue Dual LED Digital Display
Is your car’s battery always running low? Don’t rush to replace it—it might be a leakage issue.
Can’t start the car in the morning? Battery dead after just two days? Still running low even after replacing the battery? Often, it’s not a faulty battery—it’s a circuit in your car quietly leaking current.
Don’t take electrical leaks lightly: at best, you’ll deal with daily battery drain and frequent jump-starts; at worst, overheating wires could cause a car fire.
This handy tool is designed to help you quickly determine whether it’s an electrical leak or simply a drained battery.
How does it help you?
OBD plug-and-play, no-power-off testing: No need to remove the battery or disconnect the negative terminal—simply plug it into the OBD port to read the vehicle’s total leakage current.
Dual red and blue LEDs + dual digital displays: Voltage and current are shown on the same screen, with intuitive red and blue LED indicators for clear readings.
DC dual-digital current and voltage meter: Voltage range 0–18V, leakage current range 0–30A.
600mm test leads: Ample length for convenient operation in both the engine compartment and the driver’s cabin.
Full rubber sheath + fuse: Drop-resistant and slip-resistant, with overcurrent protection for added peace of mind.
Weighs only 90g: Fits easily in the glove compartment and is lightweight enough to carry in the car.
temperature: 25–60°C: Stable performance in everyday garage and outdoor environments.
Applications
The vehicle’s battery drains after just a few days of inactivity; you suspect excessive parasitic current.
The battery continues to drain even after replacing it with a new one.
The battery drains after installing a dashcam, audio system, or anti-theft device.
Inspecting a used car to check for potential electrical leakage hazards.
Quick troubleshooting of electrical leakage issues at repair shops and by mechanics.
How to Use (Simplified Version)
Turn off the engine, switch off all electrical devices, lock the car, and wait for the vehicle to enter sleep mode.
Plug the tester into the OBD port.
Observe the voltage and current readings to determine if there is abnormal current leakage.
If the current is significantly high, you can check for the leaking circuit by removing fuses one by one.
Note: Sleep current standards vary by vehicle model; it is recommended to consult the repair manual or a professional technician.
Product Specifications
Item: Specification
Product Name: Automotive Electrical Leakage Tester
Display: Red and blue LEDs + dual digital display
Voltage Range: 0–18 V
Leakage Current Range: 0–30 A
Test Lead Length: 600 mm
Weight: 90 g
Operating Temperature: 25–60°C
Protection: Fully rubber-sheathed, with fuse
Packaging: Bubble wrap
Testing Method: Direct OBD connection, testing without power interruption
Why Should Everyone Have One?
A small tool that eliminates major hazards.
Electrical leakage is no trivial matter; a dead battery is merely a symptom—wiring overheating is the real risk.
Instead of calling roadside assistance or replacing the battery every time it dies, why not test it yourself first?
Keep one on hand to prevent future problems.
What is a Car Electrical Leakage Tester?
A car electrical leakage tester is a portable tool that plugs directly into the OBD port to detect electrical leakage current and voltage without cutting power. It features dual red and blue LED indicators and dual digital current and voltage meters, with a voltage range of 0–18 V and a leakage current range of 0–30 A. The test leads are 600 mm long, it weighs 90 g, and it comes with a full rubber sheath and a fuse, operating within a temperature range of 25–60 °C.
What is a car electrical leakage tester used for?
It is used to determine whether a car battery is drained due to “electrical leakage” or “normal power consumption.” Electrical leaks in a car can cause the battery to discharge frequently; in severe cases, they can lead to overheating of the wiring or even a vehicle fire. This tool helps car owners and mechanics quickly identify potential electrical leak hazards.
How do you use a car electrical leak detector?
After turning off the engine, locking the car, and putting it into sleep mode, plug the detector into the OBD port to read the voltage and leakage current values. If the current is abnormally high, you can remove the fuses one by one to locate the circuit with the leak. Sleep mode current standards vary by vehicle model; it is recommended to consult the repair manual.
Who Should Buy It?
Car owners who frequently experience a dead battery, those whose battery remains dead even after replacement, owners who have installed aftermarket electrical devices, used car buyers, and auto mechanics. This small tool eliminates major hazards—everyone should have one to prevent future problems.
