Keep Vehicle Data Safe During Battery Replacement
Maintains power during battery replacement, with a digital voltage/current display. This professional memory saver tool maintains temporary electrical power directly to your vehicle's computer system, safeguarding your dashboard settings, clock configurations, and saved parameters from wiping out when you disconnect the old battery.
Important: For 12V vehicles only. Requires a separate 12V backup battery (not included).
Real-Time Voltage & Current Monitoring
Equipped with a bright 3-digit LED screen alongside dedicated red and blue status indicators to display real-time connection telemetry. You can easily view physical voltage status or track exact system current levels at key stages of the repair process.
Overcurrent Protection with Built-In 5A Fuse
Equipped with an inline 5A blade fuse inside a secure protective housing attached on the positive lead. This safety link provides reliable overcurrent and short-circuit shielding, preventing high current spikes from harming your automobile’s sensitive electronic control units (ECU).
Direct Battery Replacement Steps
Engineered with Premium Visibility & Components
The transparent polycarbonate (PC) connector shell allows direct visual inspection of the underlying premium green circuit board. Designed with parallel dual-core copper wires and heavy-duty, gold-finished copper clamps to ensure a tight grip and reliable conductivity.
Specifications
| For 12V vehicles only. Requires a separate 12V backup battery (not included). |
| Standard 16-Pin OBD Port |
| Built-In 5A Replaceable Fuse |
| Clear Transparent Polycarbonate (PC) Plastic |
| Exposed Green PCB with Dual Status LED Lights |
| 3-Digit LED Screen (Red Character Illumination) |
| ON: Securely Connected to Vehicle OBD / OFF: Poor Link |
| ON: Current Monitoring Mode / OFF: Voltage Monitoring Mode |
| Gold-Colored Copper Clamps (Fully Insulated Red & Black Grips) |
| Parallel Flat Red and Black Dual-Core Insulated Copper Cable |
Frequently Asked Questions
💡 What happens if the red LED light on the OBD plug does not light up?
The red LED light is your connection confirmation. If it is off, it means the tool is not properly receiving power from either the spare battery or the vehicle OBD port. Please re-check and clean the battery terminals, secure the clamps tightly, and ensure the OBD interface is fully inserted.
💡 How do I know whether the display is showing voltage or current?
You can easily monitor the readout mode by checking the blue indicator light. When the blue light is on, the 3-digit LED display is reading the system current. When the blue light is off, the digital display is monitoring voltage levels.
💡 How does the built-in 5A fuse help protect my car?
The inline 5A fuse acts as a safety barrier on the main positive power line. If there is a sudden power surge or short circuit while you are working on the car battery, the fuse will blow automatically to protect your vehicle's delicate electronic computer systems (ECU) from getting fried.