Hey all,

Just bought a DX3C for a new nitro Im getting, and I was wondering if it came with a built in BEC?

I don't believe it does have a built in BEC. But all Spektrum receivers can handle 2S lipo input to the best of my knowledge, if that is why you are asking. Just need to make sure the servos can too.

Spektrum don't put the "BEC" logo on the RX cases but they do have it.
Officially they can be fed 3.5-9.6V DC thru any of the servo slots;
just be careful not to pump power into any 'sensor' (telemetry) slot.

No i don't know what's the max current they can support

BEC = Battery Eliminator Circuit

The typical application for a BEC is in a electric powered vehicle where the use of a receiver battery is a burden. Since you'll be running a nitro powered vehicle, you will require the use of a receiver battery.

Most receivers don't have that circuitry built in because they don't supply power to the rest of the system. As far as power/voltage/current is concerned, the receiver is just a parasite...it takes what it needs from the battery/power source. If you find a receiver with a built in BEC it'll most likely be in an aircraft vehicle.

Both Dave and MC are correct, the receiver can handle the voltage, just make sure the rest of your electronics can too.