5v for GoPro from VTX - safe?

[Jebus]

I'm running the FatShark goggles with the 250mW 5.8 GHz A/V transmitter that came with them. I've also got the mini iOSD and a Goodluckbuy gimbal (on a v1.1 Phantom). The video feed is being fed from a GoPro 3+ Black Edition on the gimbal.

I've been using this setup for about a year, and decided that I'd like to feed 5v to the GoPro to charge the battery while in flight. Is it safe to pull the necessary 5v for the GoPro from the 250mW transmitter (it has a 5v Out) - or would this be too much draw? If so, any recommendations as to where else I could pull a safe 5v from?

 

[noiseboy72]

My Immersion 600mW TX specifically says you should not do this, as the current draw is too high. One of these: http://www.ebay.co.uk/itm/like/33150031 ... 0&ff14=108 will give you a stable 5V output from your flight battery.

 

[Jebus]

Thanks noiseboy. I might go that route if I can't find something else to pull 5v from on the Phantom (or maybe the gimbal).

 

[SteveMann]

You need a Battery Eliminator Circuit (BEC) like this one:
http://www.hobbyking.com/hobbyking/store/__54275__HobbyKing_8482_Micro_UBEC_3A_5v.html
It is tiny (less than an inch long) and light (7.3g).

 

[Jebus]

That looks good Steve. I take it that you feed 11.1v right from the Lipo (or wherever from the Phantom) into that?

*edit* - nevermind, I looked at that link really quick on my phone before. Just checked it again and realized that I'm dumb. Thanks again.