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Product guide

HELLEE N18 10,000mAh 22.5W Power Bank

The HELLEE N18 power bank combines a listed 10,000mAh capacity and 22.5W maximum output with four built-in cables for portable top-ups. Its cable set can reduce what you need to carry, though charging speed varies by device and use.

At a glance

Four built-in cables are claimed for iOS, Micro USB, USB-C and USB-A connections.
The listing claims a maximum output of 22.5W and charging for up to six devices at once.
A digital LED display is listed, alongside a silicone lanyard for carrying.
The stated capacity is 10,000mAh. The listing estimates 2–3 iPhone charges, two Galaxy S-series charges or 1.5 iPad mini charges.

Price

£16.97Save 31%

Reference price: ~~£24.50~~

Price checked: 12 Nov 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Integrated cable options can spare you from packing separate leads for several connector types.
The claimed 22.5W maximum output and three listed ports offer flexible charging for portable use.
Customer feedback describes the unit as compact and pocketable, which suits travel and commuting.

Cons

A 10,000mAh capacity is aimed at top-ups rather than extended multi-device charging away from a mains supply.
Customer feedback on charging speed is mixed, with some reporting slower charging to 100%.

Technical specifications

17 specifications

Identity
Brand	HELLEE
Model	N18
Colour	Black
Battery capacity	10000 Milliamp Hours
Battery cell type	Lithium Polymer

Power and charging
Maximum output power	22.5W
Output wattage	22.5 Watts
Voltage	3.85 Volts
Amperage	3 Amps
Number of ports	3
Connector type	USB Type C
Current type	DC
Power source	Corded Electric
Rechargeable	Rechargeable

Dimensions and handling
Dimensions listed	10.9 x 6.9 x 1.7 centimetres
Weight listed	180 Grams
Portable	Yes

What to know before buying

Listing details to confirm

The listing is inconsistent about cable and output configuration: it claims four built-in cables and charging six devices, while another feature states three built-in cables plus two USB-A ports and one USB-C port. The details also list three ports. Confirm the selected listing's arrangement and simultaneous charging capability. Its stated 1.9cm thickness differs from the listed 1.7 centimetre dimension, and it claims a three-year warranty in promotional copy while product details say one year. Check the applicable warranty terms.

What’s in the box

Included

10,000mAh power bank
3-year warranty manual
USB-A to USB-C charging cable
User manual

Who is it for?

A good fit for

People wanting a portable power bank with integrated cable options for different devices.
Commuters and travellers looking for a 10,000mAh backup for phones and smaller electronics.
Multi-device owners who value the claimed ability to charge several items at once and can verify the port configuration.

Less suited to

People needing high capacity for prolonged trips or frequent charging of multiple devices.
Buyers who require a confirmed cable layout, simultaneous output count or charging speed before purchase.

HELLEE N18 10,000mAh 22.5W Power Bank · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 6,524 ratings

5 stars77%77%
4 stars11%11%
3 stars3%3%
2 stars2%2%
1 star7%7%

Customer feedback highlights useful phone and iPad charging, compact size, built-in cables and easy portability, including for travel. Opinions on charging speed are mixed, with some saying phones charge quickly and others finding a full charge takes a while. That variation matters if you need predictable top-up times. The listing's 22.5W figure is a claimed maximum, not a guarantee of the rate for every device or charging situation.

Positive themes

Customers appreciate the compact size, portability and built-in cables.
Customers report that it works well for charging phones and iPads.

Mixed feedback

Charging speed receives mixed feedback, particularly on how long it takes to reach 100%.

Frequently asked questions

How much capacity does the HELLEE N18 have?

The listing states 10000 Milliamp Hours. It estimates 2–3 charges for an iPhone 15/16/17, two for a Samsung Galaxy S-series phone or 1.5 for an iPad mini. Actual results depend on the device and use.

How many devices can it charge at once?

Promotional text claims up to six, but the listing gives conflicting descriptions of the built-in cables and ports. Confirm the arrangement and simultaneous charging capability for the selected product.

What cables are built in?

The listing claims four integrated cable types: iOS, Micro USB, USB-C and USB-A. Another description refers to three built-in cables, so verify the exact configuration before buying.

What is included in the package?

The stated contents list a 10,000mAh power bank, a manual described as a three-year warranty manual, a USB-A to USB-C charging cable and a user manual.