how to put voltage on Mega Sensor Shield v1.2

Good day

Using the Mega Sensor Shield v1.2 and I must be missing an information to supply voltage. Would someone know how I could attach my battery to the Mega Sensor Shield v1.2? The Mega 2560 has a Vin input so I could get my battery wire to Vin and Gnd but now that I have the Mega Sensor Shield v1.2 on top, I can not apply voltage to both the Mega and the Senor Shield.

I seem to have bought the last one from RobotShop. it is the DFRobot Sensor Shield v1.2

Thank you in advance for any help

According to http://arduino-direct.com/sunshop/index.php?l=product_detail&p=195, for v2 of the sensor shield you remove the jumper. Probably the same for the older version.