Does any body know how to charge this unit? I have a transformer with a similar jack as the jack on the wiring of the battery charger. I see no way to connect the transformer to the battery??

I have 2 12 volt batteries from stealth. You charge it from the outside of the unit. You don't have to open it up to charge it. Is that your question? Also, I was not able to use any different charges that I had. The battery was specific to the charger that it comes with.

Plug the power supply wire into the case on the outside...there is a black rubber cover that you open up

The wire coming out of the battery only goes into the bottom of the cam