Power Supply for Tx.
 

I have an Airtronics VG6000 connected from the Trainer port to an Audio port on my Sound Card. Using SmartPropoPlus .

So, the Tx. is running off it's own battery and well, it dies...
This Tx. can't turn on when it's plugged into it's Charger.

How can I have my Tx. powered, so it isn't always dieing?
Perhaps there is a way to bypass the feature of the Tx. that doesn't allow it to turn On when plugged in to the charger?

Thanks!