Qi2 25W The First Semi-Solid State Cooling Power Bank

Your Phone's Rising Temperature Is Protesting.
But we designed a better solution.

Introducing the world's first Semiconductor-Cooled Semi-Solid State Power Bank.

A breakthrough charging solution that keeps your phone cooler on both the physical and chemical levels while charging.

• Physical Cooling: Advanced semiconductor cooling combined with active fan-assisted heat dissipation rapidly removes heat from your device.
• Chemical Cooling: Next-generation semi-solid state battery technology generates less heat during charging, reducing thermal buildup at its source.

The result? Faster, cooler, and safer charging.

Charging Got Faster. But It Also Got Hotter.
For years, power banks have focused on faster charging, bigger capacities, and more features.

Yet one problem remains largely ignored:

"Heat"

Whether wired or wireless, fast charging generates heat. Excessive heat can reduce charging efficiency, affect comfort, and accelerate battery aging.

That's why we created something different.

The world's first Semiconductor-Cooled Semi-Solid State Power Bank.

More than just a power bank, it's designed specifically to combat charging heat at its source—keeping your devices cooler while they charge.

Because you don't need another bigger power bank.
You need one that keeps your phone cool.

🎁Coming Soon: Free Gift For Every Backer（Custom Edition）

More Than Innovation. It's Persistence.

The best products aren't built to impress.
They're built to solve problems.

After years of relentless refinement, we've created a power bank designed to tackle one of charging's biggest frustrations: heat.

Its appearance may seem ordinary.

Its technology is anything but.

Semiconductor Cooling + Active Fan Cooling

The dangers of excessive charging heat are well known. Here are some of the most common effects:

1. Shortened Battery Lifespan

Excessive heat accelerates battery degradation, leading to:

• Reduced battery health
• Shorter battery life between charges

Battery aging begins to accelerate above 35°C (95°F) and becomes significantly worse with prolonged exposure to temperatures above 55°C (131°F).

2. Reduced Device Performance

When temperatures rise, smartphones automatically throttle performance to protect internal components.

This can result in:

•  Lower gaming frame rates
• Slower video editing and processing
• System lag and reduced responsiveness

The problem becomes especially noticeable when gaming while wireless charging.

Active Fan Cooling

When your phone reaches 35°C (95°F)—the critical threshold for battery health—the active cooling system automatically kicks in.

A high-speed fan spins at up to 10,000 RPM, rapidly drawing heat away from the battery and core circuitry.

Charge without the heat penalty.

The cooling fan is optimized for low-noise performance, operating at less than 19dB.

Whether you're in a quiet library, office, or using it late at night, it remains virtually unobtrusive.

Enjoy powerful cooling without the distraction of noise.

Efficient cooling. Quiet performance. Uninterrupted focus.

Semiconductor Cooling

When the weather is hot and your phone is already surrounded by heat, even a high-speed cooling fan has its limits.

That's where semiconductor cooling comes in.

Widely used in cooling accessories for years, semiconductor technology delivers powerful active cooling beyond traditional airflow.

Whether you're gaming, streaming videos, recording TikTok content outdoors, or charging under the summer sun, rising temperatures can lead to frame drops, lag, and reduced performance.

With AKNNER's Semiconductor Cooling System, you don't have to worry.

When the temperature reaches 55°C (131°F), the semiconductor cooler automatically activates, rapidly drawing heat away from your device and bringing temperatures down.

When a fan isn't enough, semiconductor cooling takes over.

Stay cool. Stay fast. Stay in control.

• Gaming at full intensity

• Filming in the outdoors

• Every demanding moment

Ultra-Thin Aluminum Alloy Body

Cooling isn’t only about active systems—it starts with the design.

We use a lightweight, ultra-thin aluminum alloy body for efficient heat conduction.

Compared to plastic or rubber, aluminum dissipates heat faster, helping spread and release it more effectively.

The slim structure shortens heat paths and reduces internal heat buildup.

Combined with active cooling, it keeps temperatures stable during high-power charging.

This Is Not Just a Power Bank

This is an evolution of mobile power.

AKNNER redefines the charging experience—not only delivering energy to your device, but actively removing heat from it.

In lab tests, temperatures were reduced by up to 28°C (82.4°F).

From now on, charging no longer has to come with overheating.

Next-Gen Wireless Charging

• 1st Gen — 7.5W
• 2nd Gen — 15W
• 3rd Gen — 25W

Faster. Smarter. More efficient.

Even wireless charging doesn’t need to slow you down.

With up to 25W wireless fast charging, it perfectly matches the charging needs of modern iPhones.

This is one of the highest standards in wireless charging today—delivering real speed when it matters most.

Whether you're outdoors or using short breaks in your day, you can quickly top up your device anytime.

Not Just About Speed—But About Safety

Fast charging matters. But safety and battery lifespan matter just as much.

Even with 25W wireless fast charging and strong magnetic alignment, prolonged exposure to heat can still accelerate battery aging and affect long-term performance.

That’s why AKNNER doesn’t only focus on cooling systems—it starts from the battery itself.

We adopt a next-generation semi-solid state battery, offering:

• Better thermal stability
• Higher safety performance
• Longer cycle life

Compared to traditional lithium-ion cells.

Even under high power output and extended use, it maintains stable and reliable performance.

From active cooling to semi-solid state cells—

AKNNER is not just about charging speed. It’s about safety, stability, and durability behind every charge.

Don’t Let Its Compact Size Fool You

AKNNER integrates a 10,000mAh high-capacity battery into a lightweight, compact body—delivering long-lasting power support for your devices.

From morning departures to late-night returns, battery anxiety is no longer something you need to worry about.

Small in size. Strong in endurance.

USB-C Bidirectional Fast Charging

AKNNER features a full-function USB-C port that supports both input and output charging.

In addition to magnetic wireless charging, you can also use a USB-C cable for fast wired charging—switching freely between different scenarios to balance convenience and efficiency.

One port. Two-way power. Full flexibility.

10 Minutes. 40% Recharged.

When your battery is running low, every minute matters.

AKNNER supports high-speed self-charging technology, delivering over 40% power in just 10 minutes—so you can get back on track in the shortest time possible.

Fast top-up. Instant readiness.

Power you can rely on, wherever you go outdoors.

12.8N Strong Magnetic Force

Whether you're commuting, exercising outdoors, or using your phone while charging, AKNNER stays firmly attached to the back of your device without slipping or shifting.

With a 12.8N strong magnetic force, it delivers a significantly more stable connection compared to standard magnetic power banks.

Even when placed in your pocket, backpack, or used one-handed, it remains securely in place.

Wireless charging, made more reliable.

Say Goodbye to Fake Battery Readings

45% shouldn’t suddenly become 1% in the next moment.

AKNNER uses a high-precision coulomb counter IC, ensuring battery readings remain highly accurate even after long-term use, with an error margin of less than 3%.

So you always know exactly how much power you have left.

No surprises. Just precise power awareness.

Designed for More Devices

To accommodate different camera layouts, AKNNER has been structurally optimized for broader compatibility.

It supports over 95% of magnetic charging-enabled smartphones, ensuring seamless attachment without camera interference.

Just snap it on—and start charging instantly.

Simple alignment. Universal compatibility.

AKNNER also supports most smartwatches and wireless earbuds on the market that feature wireless charging.

Earn Cash Back

We’ve partnered with Kickbooster to thank you for your support. For every backer you refer to this Kickstarter campaign, you’ll earn 10% cash back from their pledge.

Invite your friends, family, and community to join the journey, and get rewarded while helping bring our product to life.

 

 

Specification

AKNNER uses a 10,000mAh semi-solid state battery with an integrated structural design.

It supports up to 25W Qi2 magnetic wireless charging, and up to 45W output via USB-C fast charging. The USB-C port supports both input and output, enabling bidirectional charging.

A semiconductor cooling module and high-speed fan are integrated into the system for thermal management during charging and high-load operation.Battery level is monitored using a high-precision coulomb counter IC, improving accuracy and maintaining consistency over long-term use.

The housing is made of an ultra-thin aluminum alloy, designed to improve both structural rigidity and thermal conductivity.

What's in the Box?

• English User Manual *1
• AKNNER Power Bank *1
• Packaging Box *1

Guaranteed Warranty.

Every AKNNER is covered by a 1-year limited warranty against manufacturing defects and hardware-related issues under normal use.

Should any eligible issue arise, our support team will provide prompt assistance and work with you toward a suitable resolution.

About us

AKNNER is designed to redefine the portable charging experience by combining fast charging, active cooling, and advanced battery technology in one compact device.

Built around a 10,000mAh semi-solid state battery, it delivers reliable power while maintaining improved thermal stability and safety. With support for 25W Qi2 magnetic wireless charging and up to 45W wired fast charging, it adapts to different usage needs with ease.

To address one of the most common issues in fast charging—heat—AKNNER integrates a semiconductor cooling system and high-speed fan to actively manage temperature during operation.

From battery innovation to thermal design, every detail is engineered to make charging more stable, efficient, and dependable in everyday use.

Timeline