Dark Energy - Poseidon XL Rugged 27000mAh Power Bank

Rugged power for the field, the road, and the unexpected.

The Dark Energy Poseidon XL is a high-output, field-ready 27,000mAh rugged power bank built for people who need dependable energy in harsh conditions. Designed for off-grid travel, emergency preparedness, overlanding, tactical use, and backcountry adventures, it delivers 100W USB-C input and output to power demanding devices like laptops, cameras, drones, lighting gear, and even Starlink Mini. It is built to perform where standard battery banks fail, combining fast charging, real-world durability, and airplane-safe portability. 

With IP68 waterproof and dustproof protection, the Poseidon XL is fully submersible up to 6 feet for 45 minutes and engineered to exceed MIL-STD-810G durability standards for drop, crush, and dust resistance. Whether you are building a vehicle emergency kit, planning for grid-down scenarios, or packing reliable portable power for remote work and satellite communications, this power bank is built to keep critical gear running in extreme heat, cold, moisture, and elevation.

The Poseidon XL features 4 fast charging ports, dual USB-C input for fast recharging, a 100W solar charging port (XT60), built-in voltage regulation, surge protection, and LED charge indicators. Its compact TSA-compliant size makes it one of the largest airplane-safe battery banks available, while the integrated 1-hour and 2-hour timers help conserve power and prevent overnight drain. For preparedness-minded users who need a waterproof portable charger for laptops and satellite internet, the Poseidon XL sets a high standard for off-grid reliability.

Why choose the Poseidon XL?

• 27,000mAh lithium-ion battery with enough capacity for about 1.5 charges on a 13-inch laptop
• 100W USB-C input and output supports high-demand electronics and fast recharging
• Powers satellite internet for 2 to 3 hours and can be paired with compatible solar charging setups
• IP68 waterproof, dustproof, drop-resistant, and crush-resistant for true field use
• Built-in timers help preserve energy during off-grid and emergency use
• Airplane-safe design for travel, deployment, and mobile operations
• Ideal for emergency preparedness kits, overlanding gear, tactical loadouts, and survival power setups

Key features:

• IP68 waterproof and fully submersible up to 6 feet for 45 minutes
• Exceeds MIL-STD-810G standards for drop, crush, and dust protection
• 100W USB-C input and output port (20V/5A)
• Dual USB-C input for fast recharging (5V/3A, 9V/2A, 12V/1.5A)
• 100W solar charging input via XT60
• 4 fast charging ports
• Built-in voltage regulator and surge protection
• LED charge indicators
• Rugged polycarbonate housing with diamond-texture grip and reinforced corners
• Operates in extreme heat, cold, moisture, and elevation
• 1-hour and 2-hour timer modes to conserve power
• Backed by a 2-year warranty