Need to run more and/or more powerful servos, on board lighting, gyros or indeed anything that demands more current than the BEC in your ESC can handle? Then you need a UBEC.

All ESCs with a built in BEC (Battery Eliminator Circuit) have limits on the number of items other than the motor that they can support. Go above 3s and you can support a maximum of 3 servos at the most. The solution is to use an OPTO ESC and a separate receiver battery. This works fine for many people but adds the extra complication and weight of an extra battery. This is where a UBEC comes in. With a UBEC fitted you don't need the extra complication of a separate receiver battery, the UBEC handles all the current loads of your flight system. So now you can run more servos, take advantage of digital servos (which generally have a higher current drain) and where your systems permits run at 6v so you can take advantage of the higher torque and speed most servos can achieve at this higher voltage. What's more a UBEC can not only be used with OPTO ESC's but indeed with any BEC ESC by simply removing the +ve wire from the BEC to RX lead (see instructions). These Henge units are some of the best available.

Features and Specifications

Designed with an advanced switch mode DC-DC regulator IC, the max efficiency of the chip is
up to 93%;
The small size and the light weight make it very convenient to use;
Large output current, the continuous output current is up to 6A, and the burst output current is 8A;
A shield covers almost all the electronic components on PCB, and a special made filter(ferrite ring) is attached with the output wires to significantly reduce the electromagnetic interference;.
Ultra-wide input voltage from 7V—25.5V

To download a PDF of the instruction sheet please click here

Output	5V or 6V (Changeable with an output-voltage select switch)
Input	7V-25.5V(2-6S LIPO/ 6-16 cell Ni-Mh)
Current	6A peak 8A (less than 15 seconds)
Size	39 x 21 x 6mm (LxWxH)
Weight	14g

A higher voltage version for 4-10s is available here