Anker Nano Power Bank 10,000mAh 30W with Built-In USB-C Cable & Smart Display - Shell White | A1259H21

Stay powered wherever you go with the Anker Nano Power Bank A1259H21, a compact 10,000mAh portable charger featuring a convenient built-in USB-C cable, up to 30W two-way fast charging, an additional USB-C port, USB-A output, and a smart color display.

The exact A1259H21 configuration is the Shell White / White version of the Anker Nano A1259. The integrated USB-C cable can both charge your devices and recharge the power bank itself, reducing the need to carry an extra cable. Anker officially rates both the built-in USB-C cable and separate USB-C port for up to 30W single-port output, while USB-A supports up to 22.5W. When multiple outputs are used simultaneously, total output is 24W maximum.

Key Features

• 10,000mAh Battery Capacity – Portable power for smartphones, tablets, earbuds, gaming accessories, and other compatible devices.
• Built-In USB-C Cable – Charge USB-C devices without carrying a separate cable.
• Two-Way Built-In Cable – The integrated USB-C cable works for both device output and recharging the power bank.
• Up to 30W USB-C Fast Charging – Available from either the built-in cable or dedicated USB-C port when used individually.
• 30W Fast Recharging – The power bank itself can accept up to 30W through either USB-C input method.
• USB-A up to 22.5W – Provides compatibility with USB-A charging cables and accessories.
• 3 Charging Connections – Built-in USB-C cable + USB-C port + USB-A port.
• 24W Maximum Combined Output – When several outputs are used simultaneously, power is shared.
• Smart Color Display – Shows charging information and battery status at a glance.
• Compact Design – Measures approximately 104 × 52.3 × 26mm.
• Lightweight 215g Body – Convenient for backpacks, handbags, travel, and daily carry.
• Fast Two-Way Charging – Anker states the power bank can recharge to approximately 50% in 45 minutes when supplied with suitable 30W input power.
• Fast iPhone Charging – Anker's reference test charges an iPhone 14 to approximately 50% in 30 minutes under compatible conditions.
• 80% Post-Consumer Recycled Plastic Exterior – Used in the outer casing as part of Anker's sustainability approach.
• Shell White Color – Confirmed for exact SKU A1259H21.

Specifications

Detailed Input & Output Specifications

Built-In USB-C Cable Input

The integrated cable can recharge the power bank at up to 30W:

• 5V ⎓ 3A
• 9V ⎓ 3A
• 15V ⎓ 2A
• 20V ⎓ 1.5A

USB-C Port Input

The dedicated USB-C port also accepts up to 30W:

• 5V ⎓ 3A
• 9V ⎓ 3A
• 15V ⎓ 2A
• 20V ⎓ 1.5A

Built-In USB-C Cable Output

Maximum output is 30W when used individually:

• 5V ⎓ 3A
• 9V ⎓ 3A
• 10V ⎓ 2.25A
• 12V ⎓ 2.5A
• 15V ⎓ 2A
• 20V ⎓ 1.5A

USB-C Port Output

The separate USB-C port provides the same maximum 30W profile:

• 5V ⎓ 3A
• 9V ⎓ 3A
• 10V ⎓ 2.25A
• 12V ⎓ 2.5A
• 15V ⎓ 2A
• 20V ⎓ 1.5A

USB-A Output

The USB-A port supports up to 22.5W:

• 5V ⎓ 3A
• 9V ⎓ 2A
• 10V ⎓ 2.25A
• 12V ⎓ 1.5A

These electrical specifications are published by Anker for the A1259 platform.

30W High-Speed USB-C Charging

The Anker Nano A1259 provides up to 30W from a single USB-C output, whether you use its built-in cable or the dedicated USB-C port.

This makes it suitable for fast charging compatible:

• iPhones
• Samsung Galaxy Phones
• Google Pixel Phones
• iPads
• Android Tablets
• USB-C Earbuds
• Handheld Gaming Accessories
• Selected USB-C Laptops

Actual wattage is negotiated between the connected device and the power bank, so a device that accepts less than 30W will only draw the power it supports.

30W Bi-Directional Charging

The built-in USB-C cable isn't only an output cable—it also works as an input.

That means the same cable can be used to:

Power Bank → Phone

and

USB-C Charger → Power Bank

at up to 30W with compatible equipment.

This greatly reduces the number of cables you need to carry when traveling.

Recharge to 50% in About 45 Minutes

Using suitable 30W charging equipment, Anker states that the Nano power bank itself can reach approximately:

50% charge in 45 minutes.

This makes it much quicker to top up between trips than power banks limited to slower 10W or 18W input.

Charging time will vary with:

• Charger wattage
• Ambient temperature
• Battery state
• Simultaneous device charging

Built-In USB-C Cable

The integrated USB-C cable is one of the key advantages of the A1259.

Instead of carrying:

Power Bank + Separate USB-C Cable

you can simply carry the power bank itself.

The cable can be used with compatible:

• USB-C Smartphones
• Tablets
• Headphones
• Earbuds
• Controllers
• Handheld Gaming Devices
• Other USB-C Electronics

Anker also integrates the cable into the portable design so it can function as part of the carry/handle system when stored.

Smart Color Display

The Anker Nano A1259 includes a color display that provides easy-to-read charging and power information.

Anker describes it as a vibrant screen designed to give users detailed charging-status information without relying only on basic four-dot LED indicators.

This makes it easier to understand how much usable battery remains before leaving home or starting a trip.

10,000mAh Capacity

The internal battery capacity is:

10,000mAh.

This provides a useful balance between:

• Portable size
• Everyday battery capacity
• Weight
• Fast charging capability

Actual usable energy delivered to a phone will always be lower than the raw battery-cell capacity because voltage conversion and charging produce normal efficiency losses.

Charge Multiple Devices

The A1259 provides three available charging connections:

• Built-In USB-C Cable
• USB-C Port
• USB-A Port

so multiple devices can be connected simultaneously.

This is useful when traveling with a phone plus accessories such as:

• Earbuds
• Smartwatch charger
• Gaming Controller
• Second Smartphone
• Bluetooth Headset

Important: 30W Single-Port vs 24W Multi-Port

This is an important specification for your website.

The product is correctly marketed as a 30W power bank, because a single USB-C connection can output up to 30W.

However, Anker officially specifies:

Single Port Maximum: 30W

Multiple Outputs / Total Output: 24W Maximum (5V ⎓ 4.8A).

Therefore, do not advertise 30W per device while multiple devices are charging simultaneously.

USB-A Compatibility

Unlike USB-C-only compact power banks, the A1259 also includes a traditional USB-A port.

Maximum USB-A output is:

22.5W.

This is useful for customers who still use:

• USB-A to USB-C cables
• USB-A to Lightning cables
• Older charging accessories
• Smartwatch charging cables
• Gaming accessory cables

iPhone Compatibility

The built-in USB-C cable is especially convenient with USB-C-equipped iPhones.

For compatible recent iPhones with USB-C, you can connect directly without carrying another charging cable.

Anker also demonstrated the charging performance of this model by charging an iPhone 14 to approximately 50% in 30 minutes under its test conditions; because the iPhone 14 uses Lightning, that reference setup requires an appropriate separate cable from one of the power bank's ports rather than the built-in USB-C plug.

For older Lightning iPhones, use a compatible USB-C-to-Lightning or USB-A-to-Lightning cable.

Samsung Galaxy Compatibility

The power bank can charge compatible Samsung Galaxy devices through its built-in USB-C cable or separate USB-C output.

Its 10V / 2.25A USB-C profile provides up to 22.5W at that voltage, while the overall USB-C output capability reaches 30W under supported profiles.

Actual Samsung fast-charging mode depends on the exact Galaxy model and charging protocol supported by the device.

Tablet Charging

With up to 30W USB-C output, the A1259 can charge many compatible:

• iPad models
• Android Tablets
• Samsung Galaxy Tabs
• Other USB-C Tablets

Anker officially positions the built-in USB-C cable for phones, tablets, and compatible laptops.

Selected Laptop Charging

Anker also lists compatible laptops among the devices that can be powered through the built-in USB-C connection.

However, maximum power is only 30W.

This means it is better suited to low-power USB-C laptops and emergency/top-up charging than to high-performance laptops that normally require:

• 65W
• 100W
• 140W
• or higher

A laptop that requires more than the power bank can provide may charge slowly, only charge while sleeping, or may not accept charging at all.

Great for Mobile Gaming

The compact 10,000mAh design is also useful for mobile gamers.

It can help extend play time for compatible:

• Gaming Smartphones
• Mobile Controllers
• Bluetooth Headsets
• Wireless Earbuds
• Phone Coolers with suitable USB power requirements
• Handheld Gaming Accessories

The integrated USB-C cable is particularly useful because you do not need to carry another short cable specifically for your phone.

Compact 104mm Design

Anker specifies dimensions of approximately:

104 × 52.3 × 26mm

or:

4.09 × 2.06 × 1.02 inches.

For a 10,000mAh power bank with integrated cable and multiple ports, this makes it compact enough for:

• Backpacks
• Handbags
• Laptop Bags
• Travel Bags
• Everyday Carry

Lightweight 215g Construction

The A1259 weighs approximately:

215g / 7.58oz.

This balances its 10,000mAh capacity with reasonable portability for everyday use.

Sustainable Exterior Design

Anker states that the exterior casing uses:

80% post-consumer recycled plastic (PCR).

The recycled-material claim specifically applies to the external casing and should not be interpreted as meaning that 80% of the entire power bank—including battery cells and electronics—is recycled material.

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