Poseidon Nano

Name: Poseidon Nano
Brand: Dark Energy
SKU: PN30YGYG
Price: 47.99 USD
Availability: InStock

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

Title

Color

Green

Black

Desert

Orange

Quantity

$47.99

$59.99

Title

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.

Title

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.

Title

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.

Title

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

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

Title

Compare

Title

Poseidon Nano

Title

50-70% of a phone charge

Title

1 USB-C + Magsafe Wireless output

Title

Pocket-sized design

Title

IPX7 waterproof & dustproof

Title

Ideal for everyday carry

Title

H: 4.02 in
W: 2.68 in

D: 0.47 in

Title

Weight: 3.8 oz

Title

Poseidon Pro

Title

2–3 full phone charges

Title

2 USB-C + 1 USB-A outputs

Title

Phone-sized design

Title

IP68 waterproof & dustproof

Title

Ideal for multi-day power

Title

H: 6 in
W: 3.25 in

D: 0.63 in

Title

Weight: 9.6 oz

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.

Very Disappointing, was a waste of money

The Nano would only charge about 30% of my iPhone 17 on a single charge. I would have expected it to charge my phone more. It felt very large for such a small 3,000 MAH battery. At a minimal this charger is too small to be effective at anything I own. Wish I would have know about the 40% thermal loss as this makes such a small charger ineffective.

Hi there, thanks for your feedback. We’re sorry the Nano didn’t meet your expectations. It’s designed as an EDC charger for quick top-offs, and while a 3,000 mAh bank will charge larger phones like the iPhone 17 only partially, the performance you described does seem lower than expected.
We’ll reach out to you directly to look into the issue and see how we can make this right. Thanks again for sharing your experience.

Love it works great

Worse magsafe battery I have ever used

I use many magsafe products and this one has to be the worst. I've tried using this when my phone is close to dead and boom, gets it up maybe 10% before dying.

Than I use it how magsafe is intended, charge my phone to 100% attach the pack and boom, the phone isn't even charging. It's dying quicker than it receives power. Same result on 13 pro max, pixel 10, pixel 9a, Samsung. All of them. Don't work. Will be smashing this product

Hi Miguel, we are so sorry to hear about your experience with the Poseidon Nano. This is definitely not typical and we would love to help you out with a replacement. We will be emailing you to get you taken care of. Thank you for bringing this to our attention and we apologize for any inconvenience this may have caused.

Poseidon Nano

50 to 70% charge is a little misleading. I’m more like 30%

Hi there, thanks for your feedback! Charging performance can vary depending on the phone model and battery size — typically, you’ll see a higher charge percentage when using the included cable compared to wireless charging. If you’d like, our support team would be happy to take a closer look and help optimize your setup. Please reach out to us and we’ll gladly assist!

It does the job.

This charger is nice and compact. Charges my iPhone 16plus from dead to full pretty quickly. The nano at full charge can give me one full phone charge and have a little left over. If there was one thing I say could be better, is a little stronger magnet but other than that it's a good little charger and has a very sleek tactical look to it and glad that I got 3 of them.

1 2 3