The MasterGo B27+ Battery Activation Board is a professional mobile repair tool designed to activate, wake up, and boost dead smartphone batteries safely and efficiently. Specially engineered for iPhone and Android batteries, the B27+ helps technicians quickly identify battery health and restore charging function in deeply discharged cells.

Built with intelligent protection circuitry, the MasterGo B27+ prevents over-charging, short circuits, and overheating, ensuring safe operation during battery revival. Its compact, lightweight design makes it ideal for repair shops, service centers, and on-the-go technicians. The board supports stable current output, enabling fast and controlled battery activation without damaging the cell.

Whether you are repairing devices with 0% battery, no charging response, or long-unused batteries, the MasterGo B27+ is an essential tool for professional mobile repair work.

Key Features:

Activates dead & over-discharged smartphone batteries

Compatible with iPhone & Android battery connectors

Smart protection chip for safe operation

Compact, durable & technician-friendly design

Ideal for mobile repair shops & service engineers