
The Protean — V-Mount, B-Mount & Gold-Mount Cinema Battery (150Wh; splits to 2x75Wh carry-on)
- 150Wh capacity, 14V & 28V dual output
- Splits into 2x75Wh for carry-on travel
- 5-in-1: V-Mount, B-Mount & Gold Mount
Lithium Battery Travel Compliance
Veteran-Owned Business
Block Battery's V-Mount Battery Plate for Sony FX9 features The Protean — a 150Wh cinema battery supporting 14V and 28V configurations. Compatible with V-Lock, Gold Mount, and B-Mount systems, it splits into two 75Wh carry-on compliant units, ideal for professional film, broadcast, and location productions.


The Sony FX9 uses a V-Mount (V-Lock) battery system. Block Battery's Protean is fully compatible, offering 150Wh capacity in a 14V V-Lock configuration. It supports the FX9's power demands for extended shoots and can also power on-camera accessories and lights rated up to 150 watts simultaneously.
Talk to our experts for custom solutions and tailored guidance.

Powers Sony FX9, RED, and Canon cinema cameras on feature film sets with versatile 14V/28V dual output.

Reliable V-Mount power for ENG and EFP video crews requiring long-duration, field-ready battery solutions.

Supports on-set lighting accessories and LED fixtures rated 0–150W from a single compact battery unit.

TSA-compliant split design enables safe air travel for on-location productions requiring portable power systems.
Talk to our experts for custom solutions and tailored guidance.
Block Battery's management team brings three decades of hands-on experience in professional broadcast, cinema, and video production power systems.
The Protean supports 14V and 28V with Gold Mount, B-Mount, and V-Lock compatibility — eliminating the need for multiple separate battery units on set.
Splits into two isolated 75Wh units for airline carry-on compliance, making it the most versatile battery for location shoots nationwide.
Submit your inquiry and a Block Battery specialist will respond with tailored power solution recommendations for your production needs.
For immediate assistance, feel free to give us a direct call at 714-928-1496. You can also send us a quick email at normk@blockbattery.com.
For immediate assistance, feel free to give us a direct call at 714-928-1496. You can also send us a quick email at normk@blockbattery.com.