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
Ready to Sky Plastic Landing Gear for Quadcopter
ARF Quadcopter Advanced Combo Kit
X2 ELF 88MM Micro brushless racing kit
HobbyWing QuicRun 1625 25A waterproof Brushed Electronic Speed Controller
T Motor GB2208 KV128 Gimbal Motor
QX 95 Quad-Copter Combo kit with Radiolink flight controller
EMAX Formula Series 45A ESC support BLHELI_32 ESC Dshot1200 







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