SLi-300 14V mini Block Cinema Battery Plate Compatible
- 304Wh LiFePO4 at only 9 lbs lightweight
- UPS mode: charge and power simultaneously
- Modular linking expands total capacity
Veteran-Owned Business
US-Manufactured Products
Block Battery offers professional-grade battery systems and power solutions for cinema, broadcast, and video production. Products include modular LiFePO4 and lithium-ion batteries, multi-voltage chargers, and mount adapters compatible with Gold Mount, V-Mount, and B-Mount systems, supporting loads from 150Wh to over 900Wh for any production scale.












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Anton Bauer batteries typically last 300–500 charge cycles before noticeable capacity degradation. Block Battery products use LiFePO4 chemistry, which offers a significantly longer cycle life — often exceeding 1,000 cycles — and re-cell/service-capable housings that extend product life even further for professional production environments.
Talk to our experts for custom solutions and tailored guidance.

Powers cinema cameras and on-set lighting with high-capacity, multi-voltage block batteries for full-day shoots.

Reliable 14V and 28V battery systems for ENG cameras and field production crews on location and in-studio.

High-capacity batteries with 0–250W load support power LED panels and professional lighting rigs on any set.

Travel-compliant modular batteries enable portable, reliable power for remote and international location productions.
Talk to our experts for custom solutions and tailored guidance.
Block Battery's leadership brings three decades of professional broadcast, video, and cinema battery experience, making them the trusted industry standard across the US cinema market.
Every Block Battery product is designed and manufactured in Indianapolis, Indiana by a family- and veteran-owned business committed to superior build quality and reliability on demanding production sets.
From 150Wh travel-ready units to 970Wh modular block batteries, Block Battery covers Gold Mount, V-Mount, and B-Mount systems with dual-voltage outputs and UPS-mode charging for uninterrupted production power.
Submit your inquiry and our team will respond with tailored battery recommendations, pricing, and compatibility guidance for your specific production setup.
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.