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Zendure SuperTank Pro: The All-USB-C Power Hub for Underwater Imaging

When preparing for an expedition to a remote archipelago or setting up on the narrow deck of a liveaboard dive boat, power management quickly becomes a source of logistical stress. Between the batteries for strobes, the power banks for video lights, and the need to offload footage to a laptop, available power outlets are often scarce. It is in this context of demanding mobility that the Zendure SuperTank Pro finds its place as a true power distribution center for image creators.

The first notable feature of this unit is its interface. Zendure has made the radical choice to completely eliminate traditional USB-A ports. The SuperTank Pro offers four USB-C ports, reflecting the natural evolution of modern photographic and computer equipment.This configuration simplifies the carrying case. A few high-quality USB-C cables are sufficient to cover all needs. For the underwater photographer, this saves space and reduces the risk of forgetting a specific adapter. The C1 and C2 ports are the most powerful, capable of delivering or receiving up to 100W each, while the C3 and C4 ports are optimized for less demanding accessories with a 20W output.

The raw capacity of a battery is an important factor, but its ability to deliver that power quickly is equally important. With a combined total output power of 138W, the SuperTank Pro can power a MacBook Pro at full speed while simultaneously charging a recent hybrid housing or a tablet used for sorting photos.

This performance is based on the use of high-density cells, similar to those found in Samsung electric vehicles. This technology ensures voltage stability, which is essential for protecting the sensitive circuits of our equipment. During surface intervals, the ability to restore a significant amount of power in just a few minutes dramatically improves the photographer's peace of mind.

For a user of underwater equipment, this transparency is invaluable. It allows you to instantly check whether a video light is actually charging quickly or if a faulty cable is limiting the energy transfer. The screen also indicates the remaining battery life with greater accuracy than the usual blinking LEDs. This direct reading helps you plan charging cycles between dives without risking running out of power.

The anodized aluminum chassis of the SuperTank Pro provides reassuring rigidity. Its dimensions of 124 x 74.5 x 45.5 mm and a verified weight of 565 g make it a dense object, easy to slip into a backpack compartment. This metal structure helps dissipate heat during intensive charging, a crucial factor in tropical environments.A rare feature is the ability to update the firmware. By connecting the battery to a PC, it is possible to install patches or new charging profiles. This software upgradeability ensures that the battery will remain compatible with future Power Delivery protocols or the requirements of new camera housings, thereby extending the useful life of the investment.

The SuperTank Pro boasts a capacity of 26,800 mAh for a total energy output of 96.48 Wh. This figure places the device just below the 100 Wh limit generally set by IATA, which allows for transport in the cabin without prior request.

However, it is important to remain cautious. Even if the battery complies with international standards, the rules of a specific airline or national authority take precedence. A verification check is necessary at the time of travel to ensure compliance with the quotas. Transport in the cargo hold is strictly prohibited. In marine environments, the aluminum casing requires special attention to prevent salt-water oxidation. It is essential to protect the USB-C ports from any exposure to seawater and to store the unit in a dry place.

It is well-suited for liveaboard trips or expeditions to remote areas where access to wall outlets is limited. Its AquaExposure score of 105 for capacity and 100 for versatility reflects this focus on performance. For a recreational diver who only needs to charge a smartphone, lighter models would be more suitable. For those who cannot afford a power outage on their mobile workstation, this hub is a top-tier solution.

The SuperTank Pro imposes certain limitations. The complete absence of USB-A ports requires you to replace your cables or use adapters. While the aluminum chassis is robust, it is more susceptible to scratches than polycarbonate models.

The 100W power per port requires the use of USB-C cables certified with the E-Marker. Using low-quality cables will limit performance and could cause overheating. The OLED screen represents a minimal but constant power consumption when activated, which should be considered during extended storage periods.

To compare this model with other products on the market, please consult our external battery/power bank comparison tool and our complete selection of diving equipment.

[1]: https://powerbank.zendure.com/products/supertank-pro "Zendure SuperTank Pro Product Page" [2]: https://powerbank.zendure.com/pages/download-center "Zendure Download Center" [3]: https://www.iata.org/en/programs/cargo/dgr/lithium-batteries/ "IATA Lithium Batteries Guide" [4]: https://www.faa.gov/hazmat/packsafe/lithium-batteries "FAA Lithium Batteries Safety"Here's the translation:

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