Battery Tap with T-Connectors
by RMRC

The best option for tapping power from your main flight battery!  Compact design won't take up a ton of space inside your plane.  Includes male and female T-Style connectors with a mini JST battery plug with 20awg wire. 

Combine it with the power filter shown in the picture below (sold separately) and you have the perfect combination for powering your video system from your 3s flight battery!