The Core SWX Helix Max 275 Lithium-Ion Dual-Voltage Batteries in V-mount, Gold Mount, and B-mount are on sale for $475 USD, which is a discount of $350 USD. Key features Dual-Voltage 14V and 28V275Wh Lithium-Ion V-Mount BatteryD-Tap and USB-A Output PortsRuntime LCD Screen, LED Gauge20A Draw at 16.8V, 10A Draw at 33.6VIntegrated Camera CommunicationThe 275Wh Helix Max 275 Lithium-Ion Dual-Voltage Batteries feature simultaneous 14 and 28V dual-voltage capabilities for a complete onboard system with high-voltage performance. A maximum load of 20A at 16.8V or 10A at 33.6V makes this battery ideal for powering more demanding equipment builds in cine and broadcast applications. Helix Max series batteries draw minimal current at their maximum voltage, creating less heat and extending the runtime and longevity of each battery. An integrated LCD screen monitors runtime and total battery percentage, while built-in camera communication delivers this data directly to your viewfinder.