Swit PB-S146S 146Wh Multi-sockets Square Digital Battery Pack

The SWIT PB-S146S is a square-format digital V-mount battery engineered specifically for the demands of cinema camera operation. Where conventional V-mount batteries are designed with a universal rectangular profile, the PB-S series adopts a compact square body that is proportionally shorter than a standard V-mount brick, making it a natural physical fit for the rear plates of cine cameras without overhanging the body or creating an imbalanced rig.

At its core, the PB-S146S houses 12 high-class 18650 Li-ion cells delivering a nominal voltage of 14.4 V and a total capacity of 146 Wh / 10.1 Ah. For a typical 30 W camera, this translates to approximately five hours of continuous runtime — enough to carry through a full shooting day on a single battery with thoughtful power management. More critically for demanding productions, the PB-S146S is rated for a constant output of at least 200 W at 16 A even when the charge has dropped as low as 1%, ensuring that high-power cinema cameras and their attached accessories receive stable, uninterrupted power throughout the entire discharge cycle.

High-load cells are specified throughout the battery, and this choice has a dual benefit. First, it enables the sustained 200 W output capability that many modern cinema cameras require when powering the body, viewfinder, and on-camera accessories simultaneously. Second, high-load cells are inherently more durable under prolonged full-load conditions compared to standard cells — meaning the PB-S146S maintains its capacity ratings and cell health better over its service life when used in high-draw applications. Over-current protection is set at 18 A, providing an additional safety margin for connected equipment.

The PB-S146S provides three output ports to power a full camera rig from a single source. Two D-tap output sockets — positioned for convenient access on the battery body — each support up to 10 A load with a combined maximum of 120 W across both ports simultaneously. A USB-A port outputs 5 V / 2 A for powering or charging mobile phones, tablets, and small accessories on set. This multi-port configuration means operators can run a monitor, a wireless transmitter, and a mobile device alongside the camera body without reaching for a separate power distribution solution.

What distinguishes the PB-S146S from simpler indicator-based batteries is its built-in OLED display, which communicates a full picture of battery status at all times. The screen shows remaining power as a precise percentage, estimated remaining working time in hours and minutes, and battery cycle count — giving operators the information they need to plan shot timing, schedule battery swaps, and monitor long-term battery health. Critically, the OLED display also shows low-power warnings and any protection status alerts — if overcharge, short circuit, over-temperature, or another fault condition is detected, the display immediately communicates it in plain terms rather than requiring the operator to interpret LED flash codes.

Camera system integration is another meaningful advantage. The PB-S146S supports digital viewfinder power information display for both Sony and RED camera systems, feeding the battery's remaining percentage and runtime data directly into the camera's viewfinder or onboard monitor. This is the same intelligent power communication standard found in high-end cinema battery ecosystems — delivering actionable power data exactly where the operator is already looking, without needing to glance away from the eyepiece.

Circuit protection is comprehensive. The BMS continuously monitors for overcharge, over-discharge, overcurrent, short circuit, and high temperature, and will actively protect the battery and connected devices if any condition moves outside safe operating parameters. Protection status is reported directly on the OLED display, making fault diagnosis immediate and unambiguous — a meaningful advantage on a busy set where troubleshooting time is limited.

At 146 Wh, the PB-S146S sits within the 100–160 Wh range that many airlines permit in carry-on baggage with prior approval, making it a more travel-friendly high-capacity option than batteries exceeding the 160 Wh threshold. Operators should verify carry-on eligibility with their specific airline before travelling.

For cinematographers and camera assistants who operate Sony, RED, or other high-draw cinema platforms and need a battery that combines a cine-camera-optimised form factor, a full OLED information display, dual D-tap outputs, and sustained high-load capability, the SWIT PB-S146S delivers on every front.