I'm having trouble calculating the right converter to buy in order to power a Raspberry 2 from batteries.
I'm using 6 batteries (6x1.5V) so I guess I'll need to get an UBEC Converter like this one. All my thoughts are based on this tutorial. The batteries will also power two DC motors.
The Raspberry will be used for basic operations, to control the motors. There will be a wifi dongle connected, and an external usb camera.
Is such an converter going to be enough?