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Core SWX

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US battery manufacturer for film cameras producing V-Mount batteries (98–293 Wh); known for Helix series with Twist-Lock connectors and NEO models featuring SmartTap USB outputs.

Technical Details

Core SWX batteries primarily use 14.4V lithium-ion cells with capacities ranging from 98Wh to 293Wh. The Helix series utilizes Twist-Lock connections with automatic locking, while the NEO batteries feature SmartTap technology for simultaneous 14.4V and USB output. The PowerBase-EDGE models offer up to 147Wh at only 1.1kg weight and feature LED status indicators with a 4-step capacity display. All batteries have integrated overvoltage and deep discharge protection circuits, as well as temperature monitoring within a -20°C to +50°C operating range.

History & Development

Core SWX was founded in Los Angeles in 2005 and initially established itself as a specialist in broadcast-ready V-Mount batteries. In 2012, the company introduced the first generation of Helix batteries with improved cell chemistry. The breakthrough came in 2016 with the NEO series, which first offered SmartTap functionality in a compact design. In 2019, Core SWX expanded into high-capacity batteries for digital cinema cameras like ARRI ALEXA and RED with the Fleet series.

Practical Application in Film

DoPs appreciate Core SWX batteries for their consistent voltage output even under high power draw from 4K/6K cameras. The Helix series was used in productions like "The Batman" (2022), where the quick swap times provided by the Twist-Lock mechanism were crucial. For Steadicam work, operators prefer the lightweight PowerBase-EDGE models, as every gram saved extends working time. The integrated USB outputs of the NEO series simultaneously power monitors and wireless transmitters without additional cabling.

Comparison & Alternatives

Core SWX primarily competes with Anton Bauer and IDX in the premium segment. While Anton Bauer focuses on digital interfaces (Intelligent Battery System), Core SWX emphasizes mechanical robustness and weight optimization. IDX batteries sometimes offer higher capacities but do not achieve the cycle life of Core SWX products (up to 1000 charge cycles). For budget productions, Swit or Watson represent more affordable alternatives, albeit with compromises in lifespan and safety standards.

From the crafts

Perspectives

Cinematographer

Ich verlasse mich bei langen Drehtagen auf die konstante 14,4V-Ausgabe der Core SWX NEO-Akkus, selbst wenn die ALEXA Mini unter Volllast läuft. Die SmartTap-Funktion eliminiert das Kabelchaos, da Monitor und Teradek direkt am Akku hängen können. Bei Handheld-Szenen macht sich das reduzierte Gewicht der PowerBase-EDGE deutlich bemerkbar.

Director

Für mich bedeuten zuverlässige Core SWX-Akkus weniger Unterbrechungen durch Stromausfälle während emotional intensiver Takes. Die schnellen Wechselzeiten der Helix-Serie ermöglichen flüssigere Übergänge zwischen Setups, ohne die Schauspieler aus dem Moment zu reißen. Gerade bei improvisierten Szenen kann ich länger laufen lassen, ohne mir Gedanken über die Stromversorgung zu machen.

Producer

Core SWX-Akkus kosten zwar 20-30% mehr als Konkurrenzprodukte, amortisieren sich aber durch ihre Langlebigkeit über mehrere Produktionen. Die 1000 Ladezyklen bedeuten bei 200 Drehtagen pro Jahr eine fünfjährige Nutzungsdauer. Zusätzlich reduziert die höhere Zuverlässigkeit Verzögerungen am Set, die schnell hunderte Euro pro Stunde kosten können.

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