Poseidon XL

Built to thrive where others quit, the Poseidon XL delivers uncompromising performance in the world’s harshest environments. With a 100 W USB-C input and output, it powers everything from laptops to a Starlink Mini. Whether you’re deep in the backcountry or off the grid entirely, this is the power source you trust.

Included in the box:
- Poseidon XL Powerbank
- 3ft 100W USB-C to USB-C Cable
Poseidon XL
Poseidon XL
Poseidon XL
Poseidon XL
Poseidon XL
Poseidon XL
Poseidon XL
Poseidon XL

Poseidon XL

Built to thrive where others quit, the Poseidon XL delivers uncompromising performance in the world’s harshest environments. With a 100 W USB-C input and output, it powers everything from laptops to a Starlink Mini. Whether you’re deep in the backcountry or off the grid entirely, this is the power source you trust.

Included in the box:
- Poseidon XL Powerbank
- 3ft 100W USB-C to USB-C Cable

SOLD OUT TILL 2026!

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Quantity
$249.99
$249.99
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Highlights

  • Largest airplane safe battery

  • IP68 waterproof and dustproof

  • 1.5 charges on a 13" laptop
    (27,000 mAh)

  • 4 fast charging ports

  • Powers satellite internet (2-3 hours)

  • 100W Solar Charging Port (XT60)

  • Backed by 2 year warranty

Specs

IP68 waterproof, fully submersible up to 6 feet for 45 minutes

Drop, crush & dust-proof — built to exceed MIL-STD-810G standards

27,000mAh lithium-ion battery provides 1.5 charges for a 13" laptop

100W input and output port for fast charging (20V/5A)

1 and 2 hour timer to conserve energy and prevent accidental overnight drains

Operates in extreme heat, cold, moisture, and elevation

Built-in voltage regulator and surge protection for safe charging

Compatible with laptops, satellite internet, phones, lighting equipment, cameras & more

Built-in LED charge indicators

2 USB-C input for fast recharging (5V/3A, 9V/2A, 12V/1.5A)

Rugged polycarbonate housing with diamond-texture grip and reinforced corners

Dimensions

Height: 8.35 in (47 cm)
Width:  6.2 in (16 cm)

Thickness: 1.61 in (4 cm)

Weight: 2.5 lbs (39.79 oz)

FAQ's

Q: When do I get my Poseidon XL?

A: Orders including Poseidon XL begin shipping 12/1.

Q: How long will it run my satellite internet?

A: 2–3 hours. You can run it indefinitely when paired with a Spectre 56W Solar panel on a sunny day. 

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Q: How do I reset the Poseidon XL?


A: Press and hold the reset button for 10 seconds until the lights flash.

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Q: What is the difference between this battery and others I can purchase for cheaper?


A: Cheaper batteries are generally not waterproof, shockproof, or built for extreme use, which might work for some people. Poseidon XL is engineered to survive in the harshest of conditions. 

Q: What comes with the Poseidon XL


A: In each box is a Poseidon XL and a 100W 3 foot USB-C to USB-C Cable

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Compare

Poseidon XL

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1.5 charges for a 13"  laptop (27,000 mAh)

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2 USB-C + 2 USB-A outputs + 1 XT60 Solar input

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IP68 waterproof & dustproof

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Power for Laptops

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H: 8.35 in 
W:  6.2 in

D: 1.61 in

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Weight: 2.5 lbs

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Poseidon Pro

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2–3 full phone charges (10,000 mAh)

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2 USB-C + 1 USB-A outputs

 

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IP68 waterproof & dustproof

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Power for Phones

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H: 6 in 
W:  3.25 in

D: 0.63 in

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Weight: 0.6 lbs

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Complete Your Power Setup

THE STANDARD FOR OFF-GRID RELIABILITY

PERFORMANCE FOCUSED

The Poseidon XL delivers 100 watts of output in a compact, TSA-compliant design—strong enough to power laptops, cameras, drones, and even Starlink Mini. It’s the new standard for field-ready energy.

PERFORMANCE FOCUSED

The Poseidon XL delivers 100 watts of output in a compact, TSA-compliant design—strong enough to power laptops, cameras, drones, and even Starlink Mini. It’s the new standard for field-ready energy.

SURVIVALIST RELIABILITY

In the backcountry or the battlefield, power isn’t optional—it’s survival. The Poseidon XL was engineered for extremes: fully submersible, drop-proof, and built to operate from –10°F to 120°F without losing charge. 

SURVIVALIST RELIABILITY

In the backcountry or the battlefield, power isn’t optional—it’s survival. The Poseidon XL was engineered for extremes: fully submersible, drop-proof, and built to operate from –10°F to 120°F without losing charge. 

OUR IDENTITY

Dark Energy builds power for the extremes—for people who don’t turn back when things get hard. The Poseidon XL represents everything we stand for: relentless performance, uncompromising strength, and the freedom to go further than ever before.

OUR IDENTITY

Dark Energy builds power for the extremes—for people who don’t turn back when things get hard. The Poseidon XL represents everything we stand for: relentless performance, uncompromising strength, and the freedom to go further than ever before.

Customer Reviews

Based on 13 reviews
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M
M. Sharp
When Reliability Matters!

Whether you find yourself in an stress-free environment or in rugged terrain. You can always rely on the Poseidon XL to get you through whatever obstacle you encounter!

K
Kory McLarrin
Top notch!

Have used several of the dark energy products the past few years. They are tough and they just flat out work! The PXL is no different! Another product Ild recommended to anyone!

H
Hunter Johnson
When Power isn’t Optional, I Trust the Poseidon XL!

As a Content Creator/Video Editor, I have found myself in several situations where I was unable to complete a task or finish a job due to the lack of power. Now that I have the PXL, that is a problem of the past! This year I was able to edit an entire Youtube Video while sitting in a duck blind because of the PXL. If you love to hunt but also have work to do, the PXL is a must have!

M
Mike S
Works!

Purchased for my StarLink Mini. Works as advertised.

E
Edward van Ommeren
More power , less worries

I now have enough power to last most journeys and water resistant covers means less worries especially when out on kayak trips or a day in the elements. May need to buy the solar panel next

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