DC power supply
What is a DC Wire in Mobile Repairing?
A DC wire (direct current wire) is a flexible cable used to connect a mobile repair power supply (DC power supply) to the device under repair. It delivers a controlled, stable DC voltage for powering the device during troubleshooting, testing, or charging-related repairs.
Main Uses of DC Wire in Mobile Repair
1. Powering a Dead Phone Without Battery
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When a battery is faulty or missing, wires allow technicians to power the phone directly from a regulated DC power supply.
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This helps in diagnosing power circuit faults.
2. Current Consumption Testing
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By connecting the phone to a DC power supply via DC wire, technicians can monitor current draw.
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Abnormal readings (too high or too low) help identify short circuits, water damage, or faulty ICs.
3. Battery Bypass for Software Work
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Useful during flashing, unlocking, or software recovery when the battery is dead or unstable.
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The DC wire supplies stable voltage, preventing sudden shutdowns.
4. Charging Circuit Diagnosis
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Helps in testing charging ICs, USB ports, and PMICs by supplying power directly and checking voltage flow.
5. Activation of Mobile Boards
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Used to jump-start a motherboard to check booting status without depending on the phone’s battery.
Features:
- * Alligator Clip Test Lead can be used in electrical or laboratory electric testing work.
- * Color-coded leads allow you to test circuits without crossing wires or causing shorts.
- * Can be used as low-voltage jumper leads.
- * Product Name: Alligator Clip Test Lead;
- * Clip Opening Width: 5mm / 0.2″
- * Cable Length: 1M / 3.28ft;
- * Color: Black, Red
- * Material: Metal, Soft Plastic
- * Net Weight: 20g
- * Package: 1 x Alligator Clip Test Lead
- * Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm
