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
USA Designed & Manufactured
Block Battery offers professional cinema and broadcast battery systems designed for demanding production environments. With LiFePO4 and lithium-ion chemistries, modular designs, and multi-voltage outputs, these batteries power 14V and 28V cameras, lights, and accessories for film, ENG/EFP, and broadcast professionals.








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Block Battery offers strong value across its range. The SLi-300 at $600 delivers 304Wh with LiFePO4 chemistry and UPS mode. For dual-voltage needs, the SLi-D600 at $2,150 provides 608Wh with 14V and 28V outputs. The Protean at $275 is an entry-level option with travel-ready 150Wh capacity splitting into two 75Wh units.
Talk to our experts for custom solutions and tailored guidance.

Powering cinema cameras, LED lights, and accessories on location and studio film sets all day.

Reliable multi-voltage power for electronic news gathering and field production camera crews.

High-capacity dual-voltage battery systems supporting broadcast cameras and equipment for all-day operation.

Providing stable 14V–30V power to LED panels and lighting accessories on professional production sets.
Talk to our experts for custom solutions and tailored guidance.
Block Battery's management brings three decades of professional broadcast, video, and cinema battery experience, making them a trusted industry standard.
From 14V to 30V with linkable, QuickCell modular designs, Block Battery systems scale to match any production's power demand.
Every Block Battery product is designed, manufactured, and serviced in the USA by a veteran-owned team committed to superior quality and competitive pricing.
Submit your inquiry and a Block Battery specialist will respond with tailored recommendations, pricing, and configuration guidance.
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.