American Made Rechargeable Batteries

Block Battery does not manufacture consumer AAA batteries. Instead, they specialize in professional-grade American-made rechargeable lithium battery systems for cinema, broadcast, and ENG/EFP video production. Their high-capacity batteries range from 150Wh to over 970Wh and are designed to power professional cameras, lighting rigs, and production accessories at voltages ranging from 14V to 30V.

Yes — Block Battery is a veteran-owned battery manufacturer based in Indianapolis, Indiana. All battery systems are designed and manufactured in America, making Block Battery one of the few domestic sources for professional-grade rechargeable cinema and broadcast batteries with over 30 years of industry expertise.

Block Battery systems support a wide range of voltages including 14V, 16V, 24V, 28V, 28.8V, and 30V. Dual-voltage models like the SLi-D600 and SLi-D1000 provide both 14V and 28V outputs simultaneously, making them compatible with a broad range of professional cinema and broadcast cameras.

Several Block Battery products, including the SLi-D600, SLi-D1000, and The Protean, are designed to be disassembled or split into smaller battery units to comply with airline carry-on regulations for lithium batteries. The Protean splits into two isolated 75Wh units, and the SLi series uses QuickCell modularity for air travel compliance.

Block Battery systems are compatible with leading professional cinema cameras including Sony FX9, Canon EOS C400, RED cameras, Arri Alexa, and Phantom. Mount compatibility includes V-Mount, B-Mount, Gold Mount, Three Stud, and Gold Mount Plus configurations, covering nearly all professional broadcast and cinema camera platforms.

Yes. Multiple Block Battery models, including the SLi-D600, SLi-D1000, SLi-300, and Artisan Block, feature a UPS mode that allows simultaneous charging and discharging. This means you can keep your camera or lighting equipment powered without interruption while the battery is being recharged on set.

Yes. Several models feature QuickCell modularity and linkable battery design, allowing multiple units to be connected together for increased capacity. The SLi-D600 and SLi-D1000 support battery linking, and the SLi-300 can also be linked. This scalability makes them ideal for long shoot days or high-demand productions requiring extended runtimes.