4 Cell AA Battery Holder Case With JR Connector 2P Black Red Wire For RC Models Power Up Servo Tester ESC Speed Controller Checker CCPM Servo Consistency Master For Helicopters Cars Boats Robots

1pc 4-Cell AA Battery Holder with JR Connector & Tester
✔️ 1pc 4-Cell AA Holder with JR 2P, red/black wires, compact

This 4-cell AA battery holder case with a JR 2P connector provides a simple, portable power source for RC models and a handy way to test servos. It's commonly used in RC cars, boats, helicopters, and small robotics projects. Batteries are not included.

✅ 4-cell AA battery holder with JR 2P interface
✅ Red (+) and black (-) wires designed for easy hookup
✅ Includes 3-channel digital servo tester to check JR-compatible servos
✅ Suitable for RC cars, boats, helicopters, drones, and micro projects

💡 What is a handy use for a JR powered servo tester in RC projects?

This handy device makes bench testing easy. 1) Use with JR 2P connector to drive standard servos and confirm polarity 2) Check signal timing and rotation direction before installation 3) Verify voltage and current draw to prevent damage