300Wh Lithium-Ion Batteries

The SLi-300 is compatible with Gold Mount, V-Mount, and B-Mount via eliminator plates. These plates allow the battery to offload weight from cameras and light panels, making it suitable for 15mm rod rigs, ring grips, shoulder rigs, and light stands.

Yes. The SLi-300 features a UPS (Uninterruptible Power Supply) mode that allows simultaneous charging and operation. This means your connected devices — cameras, lights, or accessories — remain powered without interruption while the battery is being recharged.

The SLi-300 provides over two hours of continuous runtime for most smaller cinema cameras operating within its 0–150W load range. Actual runtime will vary based on the power draw of connected devices. Lower-wattage loads will result in proportionally longer runtimes.

Yes. The SLi-300 features a modular design that allows multiple batteries to be linked together to expand total capacity. This is particularly useful for extended shoots, high-power lighting setups, or any production scenario requiring longer runtimes without swapping batteries.

The SLi-300 is designed for 14V cinema cameras, LED lights, and accessories. It supports Sony cameras, Canon DSLR and 5D rigs, and RED camera setups via V-Mount or B-Mount eliminator plates, as well as any 14V device drawing up to 150 watts.

The SLi-300 is classified as a standard non-disassemblable battery system. It is not designed to be disassembled for air travel compliance. We recommend checking current airline and TSA regulations regarding lithium battery transport before traveling, and contacting Block Battery directly for specific guidance.