Poseidon Nano

Don’t let the size fool you. Poseidon Nano is pocket-sized, waterproof, and MagSafe-ready—built for daily life and sudden emergencies. It holds power for years and gives you a quick charge when you need it most. The perfect EDC to give you just enough battery until you get home.

Poseidon Nano

Don’t let the size fool you. Poseidon Nano is pocket-sized, waterproof, and MagSafe-ready—built for daily life and sudden emergencies. It holds power for years and gives you a quick charge when you need it most. The perfect EDC to give you just enough battery until you get home.

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$59.99
$59.99
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Highlights

  • Pocket-sized, rugged power bank

  • Wireless MagSafe & USB-C Output

  • Delivers 50–70% of a phone charge in a compact package

  • IP67 waterproof and dustproof

  • Holds a charge for 2+ years

  • Backed by 2 year warranty

Specs

IP67 waterproof, dustproof, and drop-tested for everyday abuse

3,000mAh battery delivers 50-70% of a phone charge

Wireless charging (5W) with MagSafe compatibility

Operates in -20°F to 120°F

Holds charge for over 3 years in standby mode

Lightweight (under 4 oz.) and pocket-sized for everyday carry

Reinforced shell meets MIL-STD-810G impact standards

Built-in voltage regulator and surge protection for safe charging

Compatible with phones, radios, GPS devices, headlamps, cameras & more

Built-in LED charge indicators

Dark Energy logo doubles as power button with auto shutoff

Built-in leather finger strap for secure carry and quick access

Dimensions

Height: 4.02 in ( 10.2 cm)
Width:  2.68 in (6.8 cm)

Thickness: 0.47 in (1.2 cm)

Weight: 3.8 oz (107 g)

FAQ's

Q: How do I turn my Nano on?

A: Press the Dark Energy logo on the front of the Nano. That’s your power button. Once it’s on, the Nano will stay active while charging a device, then automatically shut off after a short period of inactivity to conserve power.

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Q: How many times will this charge my phone?


A: The Poseidon Nano delivers about 50-70% of a full phone charge, depending on your phone’s battery size. It’s built to give you a reliable boost when you need it most.

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Q: How come the MagSafe charging won’t work on my phone?


A: To use MagSafe charging, your phone must support MagSafe wireless charging. Most iPhones, iPhone 8 and newer work — but if your case is too thick, made of metal, or not MagSafe-compatible, it can block the connection. 

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Q: The Nano gets warm when charging — is that normal?


A: Yes. All power banks generate some heat while charging, especially during wireless charging.

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Compare

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Poseidon Nano

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50-70% of a phone charge

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1 USB-C + Magsafe Wireless output

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Pocket-sized design

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IPX7 waterproof & dustproof

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Ideal for everyday carry

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H: 4.02 in
W:  2.68 in

D: 0.47 in

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Weight: 3.8 oz

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Poseidon Pro

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2–3 full phone charges
 

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2 USB-C + 1 USB-A outputs

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Phone-sized design

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IP68 waterproof & dustproof

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Ideal for multi-day power

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H: 6 in 
W:  3.25 in

D: 0.63 in

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Weight: 9.6 oz

EVERYDAY BACKUP. ANYWHERE YOU GO.

POCKET-SIZED PEACE OF MIND

Poseidon Nano is small enough to forget about—until you need it. When your battery’s low and your day’s not done, it’s the backup you’ll be glad you packed.

 

POCKET-SIZED PEACE OF MIND

Poseidon Nano is small enough to forget about—until you need it. When your battery’s low and your day’s not done, it’s the backup you’ll be glad you packed.

 

A SAFETY NET IN YOUR POCKET

Most of us don’t think about backup power—until we wish we had it. Poseidon Nano gives you confidence on the road, in the woods, or halfway through a chaotic day.

A SAFETY NET IN YOUR POCKET

Most of us don’t think about backup power—until we wish we had it. Poseidon Nano gives you confidence on the road, in the woods, or halfway through a chaotic day.

DESIGNED FOR DAILY USE

You don’t need much—just enough to finish the day. Poseidon Nano gives you that with one quick snap.

DESIGNED FOR DAILY USE

You don’t need much—just enough to finish the day. Poseidon Nano gives you that with one quick snap.

Customer Reviews

Based on 36 reviews
47%
(17)
8%
(3)
11%
(4)
8%
(3)
25%
(9)
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Joseph Hummel
Good backup battery

I’ve had the Poseidon nano for a month now and I’m very happy with it.I keep it with me throughout the day used it a bunch of times when my phone has had close to zero battery and it’s put in over 3/4 charge would have fully charged it if I wanted to . Sticks good to my iPhone and a Good backup to have .

M
Michael

First the product just feels cheap to start with and does not always work. 2) if fully charged it cant even fully charge a phone that is only around 70% battery life. And three the return/exchange policy is horrendously difficult to initiate. I would not recommend this or any other product this company offers.

We are very sorry to hear that you aren't 100% satisfied with the Nano. Depending on your phone, it can be about 40-70% charge (which is typical for a 3,000 mAh battery). It’s designed as an EDC, just enough juice to get you through the end of the day! We do have a 30 day return policy on all of our products as well as a 2 year warranty. We see you were able to initiate a return on our website. Please let us know if you need any further assistance with this process, we are happy to help.

W
William

Excellent product but it doesn't have the correct power connection for my telephone and the product wont connect wirelessly to my apple telephone either

B
Besnik

Great product and nice flashy color

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David
Won't stick to Samsung

It won't stick to the Samsung phone. Just has an ever so slight attraction to it.

Hi there! Thank you for leaving a review for our Poseidon Nano. We're sorry to hear that it's not sticking to your Samsung phone. Just to clarify, MagSafe is designed for iPhones. For your Samsung phone, we recommend looking into a MagSafe case or checking out our video on how to use the Nano with other wireless devices here: https://www.youtube.com/watch?v=mnHrIgxOjoE.
Alternatively, you can always use the provided cable to charge your device using the Poseidon Nano. Thank you for your feedback, have a great day!