When using a lithium battery pack of more than 3S, a switch-mode BEC offers much higher efficiency and generates less heat compared to a traditional linear BEC.
For example, consider a 4S lithium battery pack with a typical voltage of 14.8V. To output 5V/1A, the current flowing into the linear BEC is at least 1A. The power consumed by the BEC is 14.8V * 1A = 14.8W, but the useful output power is only 5V * 1A = 5W. Therefore, the efficiency of the linear mode BEC is just 5W / 14.8W = 33.8%. The redundant power, 14.8W – 5W = 9.8W, is dissipated as heat, causing the BEC to become very hot and potentially enter a protection state, rendering it unable to function.
In contrast, a switch-mode BEC can handle higher input voltages with much greater efficiency, reducing heat generation and maintaining reliable operation.
Package Includes:
1 x HENGE 8A UBEC
Waveshare USB HUB HAT (B) for Raspberry Pi Series with 4x USB 2.0 Ports
Raspberry Pi Camera Module 3 Wide
Official Raspberry Pi High Quality Camera- C/CS Mount
Raspberry Pi Camera Module 3
Official Raspberry Pi Debug Probe
Metal Protective Case for Nvidia Jetson Nano
Official Raspberry Pi 6 mm Wide Angle Lens for Pi High Quality Camera
Official Raspberry Pi Camera NOIR V2
ESP8266/ ESP-12F Module/ Serial WIFI Witty Cloud Development Board + MINI nodeMCU
Official Micro-HDMI (Male) to Standard HDMI (Male) Cable for Raspberry Pi
NVIDIA Jetson AGX Orin 64GB
Raspberry Pi Pico H - Pico with Headers Soldered
Official Raspberry Pi 16mm Telephoto Lens for Pi High Quality Camera
Official Raspberry Pi 5 Case Red-White
Raspberry Pi Compute Module 4 – 4GB RAM, 32GB eMMC, 2.4/5.0GHz Wi-Fi & Bluetooth 5.0 (CM4104032)
TS5828L 5.8G 600MW 40CH Transmitter with Antenna
NodeMCU CP2102 Board ESP8266
Pixhawk 2.4.8 Basic Flight Controller kit with GPS Module
Emax Lightning 30A Brushless ESC (Original) 







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