Free Shipping! Core SWX Helix Max 147Wh Lithium-Ion Dual-Voltage Battery (V-Mount) Dual-Voltage 14V and 28V, 147Wh Lithium-Ion V-Mount Battery, 20A Draw at 16.8V, 10A Draw at 33.6V, D-Tap and USB Output Ports, Runtime LCD Display, Supports SMBus...