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This is a 3-section battery holder or battery spacer for the 21700 Lithium battery
It has Very low self-discharge
Specifications: Rated Current: 45A
1 x 5W LED chip - High Power Cool White COB Light 300mA
Connector Type: USB Type A Male to DIP
Digital Display for HC-SR04 Ultrasonic Distance Measurement Control Board Drone Motor This is a 3-section batteryThe Digital Display for HC SR04 Ultrasonic Distance Measurement Control Board is a compact and efficient module designed to test and measure distance using the HC SR04 ultrasonic sensor. Powered by an onboard STM8S103 microcontroller, this board offers precise performance and supports both digital tube display and serial data output. Ideal for robotics, automation, and distance monitoring applications, it provides accurate measurements and a user
