Thanks for the inspiration Gordon. I am using a 12V to 5V regulator from Amazon ($5), a Raspberry Pi 2, usb wifi and AD2USB. I am hoping to build a custom python app to log all events and email/txt me for specific events. I figure that the VISTA10SE can supply enough current to recharge the battery, that should be more than ample to power the RPI 2, usb wifi and AD2USB. I am at 3 days up time with no problems ssh-ing into it to do the development.
I am fine with the loss in battery life when main power is cut.