Switronix PB70-BMCC 70Wh powerbase for Blackmagic Design Cinema Camera Capacity: 70 Wh, 4.8 Ah Voltage: 14.8 V Dimensions: 6.25 x 1.8 x 3.3" (15.875 x 4.5 x 8.4 cm) Weight: 1.4 lbs (0.63 kg)