There are a lot of battery mods out there for these goggles but they are external batteries, this mod is for a 2000mah internal battery.
The new turnigy (or what ever battery you use) will need a
2MM JST-PH connector fitting before doing this mod so it can plug into the main board battery socket. I removed this connector
from the original battery installed in the vr006 goggles and soldered it onto the Turnigy battery.
I now get on average around 3hrs runtime compared with 30 mins runtime with the original 500mah battery.
Link to battery used: hobbyking.com/...