Dark Energy Lithium Ion Power Bank

The Poseidon XL is built for environments where failure isn’t an option. Designed for off-grid use, remote work, and harsh outdoor conditions, it delivers reliable high-output power in a rugged, waterproof housing. With a 27,000mAh capacity and full 100W USB-C input and output, it’s capable of running demanding devices like laptops and even satellite internet systems such as a Starlink Mini. Paired with the 100W XT60 solar input, the Poseidon XL works seamlessly with the Dark Energy 56W solar panel, giving you a dependable off-grid charging solution to generate power during the day and store it for when you need it most.

Details

Key Features & Performance

27,000mAh lithium-ion battery delivering up to 1.5 charges for a 13" laptop
100W USB-C input and output (20V/5A) for fast charging and high-demand devices
Capable of powering satellite internet systems for 2–3 hours
100W XT60 solar input, optimised for use with our 56W solar panel for off-grid charging
Four fast-charging ports supporting multiple devices at once
Built-in voltage regulation and surge protection for safe, stable output
1 and 2-hour auto shutoff timers to conserve power and prevent overnight drain
LED charge indicators for quick battery status checks

Durability & Build

IP68 waterproof and dustproof, fully submersible up to 6 ft (1.8 m) for 45 minutes
Drop, crush, and impact resistant—built to exceed MIL-STD-810G standards
Operates in extreme heat, cold, moisture, and elevation
Rugged polycarbonate housing with diamond-texture grip and reinforced corners

Specification

Specifications