The PB-H290S is a high-capacity 290Wh bi-voltage V-mount battery engineered for professional cine cameras and high-power lighting systems. Built with 24 premium 18650 cells, it supports both 14.4V (11–16.8V) and 28.8V (22–33.6V) outputs, delivering up to 250W constant power—enough to drive ARRI ALEXA LF (160W) and multiple accessories simultaneously.

To prevent accidental damage to standard-voltage equipment, the PB-H290S uses intelligent auto-switching technology instead of a physical voltage switch. When mounted on a compatible high-voltage plate (e.g., SWIT KA-A20S), or when a magnetic “Magic Sticker” is applied to a standard V-mount plate, the battery automatically activates its 28.8V output. This makes it ideal for powering high-draw cine lights and cameras while maintaining backward compatibility with 14.4V systems.

The battery includes dual 16V D-tap outputs, a 2-pin LEMO output, and a 5V/2A USB port for powering accessories. Its CNC-machined aluminum housing ensures durability, and the design is optimized for safe, efficient current delivery with reduced heat buildup. The PB-H290S is compatible with standard 14.4V chargers, offering flexibility in charging infrastructure.