Power up and boot Android smartphones without a battery using the Lanrui AA-12 4.2V Power Supply Boot Startup Cable. This essential repair tool delivers stable 4.2V power directly to the phone’s motherboard, making it ideal for testing, diagnosing, and repairing devices during mobile phone service.

Key Features:

•  Stable 4.2V Output – Provides safe and consistent power matching standard lithium battery voltage for Android devices

•  Boot Startup Function – Easily powers on phones without a battery for testing screens, charging ports, and motherboard functions

•  Universal Android Compatibility – Works with most Android smartphones for efficient repair and diagnostics

•  Durable & Reliable Design – High-quality cable built for repeated use in professional repair shops

•  Essential Phone Repair Tool – Perfect for technicians performing battery-free boot tests, short circuit checks, and power-related troubleshooting

•  Easy Plug-and-Play Use – Simple connection for quick startup and power supply during mobile phone repairs

Speed up your Android phone repairs with the Lanrui AA-12 4.2V Boot Startup Cable — the reliable power solution every technician needs