Another member  posted this question and I have a related follow up question. 
I would like to eliminate the rechargeable internal battery on the TinyTV mini and wire it to an external 3 to 5v external DC power source. The external wire connection would have an ON/OFF relay .   Does this sound possible?   The reason is that the TV is to be installed in a model that I will NOT have access to once the TV is installed.  Thank you. 

Is it possible to do this with the mini as well?  Thanks.