Part compatability

Would all of these parts go together or would the battery and motors be to much for this shield.
Motorshield - Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit [v2.3] : ID 1438 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Battery - http://www.tetrixrobotics.com/Controllers_and_Electrical/Power_Accessories/TETRIX_12-Volt_Rechargeable_NiMH_Battery_Pack
Motors - http://www.tetrixrobotics.com/TETRIX_DC_Gear_Motor

Looks to me like all would work together OK but is motor reversible? Do you need it to be reversible?

I found out that they do not work together because the motors draw too much current they have a stall current of around 7A

polulo