Many people don't realize that their ESC's BEC rating is misleading. With the linear BEC built into most speed controls, the current rating decreases as pack voltage increases. For example, several popular 25A ESCs with "3A" BECs are only capable of supplying 0.5A when running from a 3s pack.

The 6v BEC is especially well suited for most small Helicopters and 3d Planes, where extra Response Speed or Torque are needed.

Flyers with rotor spans larger than 60 inches or with in-flight servo torque loads greater than 80oz.in Should consider putting two VHVBECs in parallel, or using a ServoSense Plus to measure in-flight current draw before performing Hard Maneuvers. No special circuitry is needed for Parallel Operation. Just solder them in parallel at the battery connector with the correct polarity.