What will it do for me?

The UBER-BEC will take high-voltage (3S to 13S) power from your battery pack and convert it to a consistent safe voltage for your receiver and servos. The UBER-BEC allows you to easily choose whether to run your system at 5 or 6 volts. Running at 6 volts gives faster servo speed, and most modern receivers and servos will work fine at this voltage.

Do I really need it?

If you are using a speed controller with a built-in BEC, it will very likely have only a limited ability to supply power to your receive and servos without overheating, if you have a relatively high-voltage battery pack or have high servo loads. Consult the speed controller specifications to determine what the stated recommendations or limitations are. In general, if you are using a 4S Lithium pack, or more than a 12-cell Nickel based pack, you should consider using the UBER-BEC. This is NOT a BEC that works with 2S packs – it will not work with less than 8v input, and generally on 2S you don't need a switching regulator type BEC.

How do I use it?

Splice the red and black input power wires to the + and – battery power going to the speed controller. You may want to wire in a switch so you can control the UBER-BEC and thereby your receiver power more easily and safely. The input power to the UBER-BEC is relatively low current, so almost any switch will handle the current. Plug the servo-style connector into either the “Bat” position or an empty channel position on your receiver.

Can I use 6 volts?

If your servos are rated for operation at 6 volts, you can use 6 volts. Receivers and servos will generally tolerate it even if they aren't rated for it, though you'll be on your own responsibility in that case. You can connect your receive and one servo, on 5 volts, and check the operation. Then if you install the “6-volt” jumper and the servo doesn't change position, or start to buzz or get warm, it will probably be OK. Move the servo back and forth to test it – you should notice that it moves more quickly on 6 volts.

How do I mount this in my airplane?

Give it some air flow. In normal usage it won't get very warm at all, because, the average draw from the BEC in an aircraft in flight is very low. Therefore, the ability to sustain a high average current is not always overridingly important. However, when something goes wrong, like a control surface or landing gear getting stuck, and causing a steady high current flow, a very small BEC, even a switching BEC, can overheat because it cannot dissipate enough heat. So, while most of the time you can probably get away with stuffing it into a dark recess and smothering it with foam, it wouldn't be the safest thing to do. If you know you are going to use it in extreme heat under extreme continuous loads, you will definitely need to optimize the mounting and positioning to allow as much airflow as practical. The UBER-BEC has been designed using larger-than-average parts and has a dedicated printed circuit board heat dissipation area to help endure fault conditions for a longer time. The nice flat surface is where it gets rid of heat. It's very tempting to use that surface to Velcro or double-side foam tape it to something to mount it. Instead, mount it using the “bumpy” component side. Make sure that the wires are not being pulled on.

Specifications:

3.5 Amp, 8v to 55v BEC (3C to 13C LiPoly)

· Selectable 5v or 6v output

· 3.5 A continuous (68 deg. F ambient, convection cooling to ambient air)

· 4 A for 3 minutes starting from 68 deg F

· 5 A peak w/ input voltage above 16v

· 3.0 A continuous (100 deg. F ambient, convection cooling to ambient air)

· 3 A for 1 minute in sealed enclosure, no air flow, starting at 100 deg. F.

Idle power consumption:

· < 10 ma from battery

Size:

· 25mm x 46mm x 12mm ( 1” x 1.8” x .45”)

Weight:

· 22g

Connections:

· Red/black 22 ga. Wire pair for main power in

· 22 ga. red/black Servo lead out to Rx, JR style

Controls:

· Jumper selects 6v or 5v output

Indicators:

· green LED shows power ON

Installation:

· recommend mounting in airflow to improve reliability and efficiency