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
PIC K150 USB Automatic Develop Microcontroller Programmer with ICSP Cable (Body width: 10 mm)
Waveshare Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4
Raspberry Pi Camera Module 3 Wide
Waveshare Quad GPIO Expander for Raspberry Pi Pico
PIMORONI LiPo/LiIon SHIM for Raspberry Pi Pico
Waveshare R800C GSM/GPRS HAT For Raspberry Pi
Ai Thinker ESP-12S ESP8266 Serial WiFi Module
Official Raspberry Pi Keyboard, White/Red
PIMORONI Breakout Garden Mini (I2C + SPI) for Raspberry Pi
Official Arduino MKR NB 1500 Board ABX00019
2-Wheel Drive Rugged Robot Chassis with 37mm 37B280 Gear Motor
Waveshare Raspberry Pi Zero 2W To CM3 Adapter, Alternative Solution for Raspberry Pi CM3 / CM3+
EDATEC 40pin I/O Protector for Pi400, Rainbow Cable
Waveshare Nano Base Board (A) for Raspberry Pi Compute Module 4, Same Size as the CM4
BIGTREETECH BTT Pi4B Adapter Board
BIGTREETECH BTT CB1 Development Board
Official Raspberry Pi Keyboard, Black/Grey
DFRobot FireBeetle ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth) 







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