Table of Contents

UGREEN PB311 Power Bank

Name: UGREEN PB311 Power Bank – 10000mAh 20W Two-Way Fast Charging with Smart Display
Price: 3000.00 KES
Availability: InStock

1. Introduction

We’ve all been there—you’re in the middle of an important call, navigating through Nairobi traffic, or waiting at the airport for a flight, and your phone battery hits 5%. The dreaded low-battery warning appears, and you’re left scrambling for an outlet that doesn’t exist.

Enter the UGREEN PB311 Power Bank—a compact, powerful 10000mAh portable charger that keeps your devices powered wherever you go. With 20W two-way fast charging, dual USB-C and USB-A ports, and a smart LED digital display, this UGREEN power bank delivers the perfect balance of capacity, speed, and portability.

At Calvantech, we’re proud to offer the UGREEN PB311 Power Bank to customers across Kenya who demand genuine, high-quality accessories for their daily needs.

UGREEN PB311 Power Bank

2. Why You Need the UGREEN PB311 Power Bank

Let’s be honest—battery anxiety is real. Whether you’re a professional hopping between meetings, a student attending back-to-back lectures, or a traveler exploring new places, running out of battery at the wrong moment can be a disaster.

The UGREEN PB311 Power Bank solves this problem with professional-grade portable power:

10000mAh capacity – Recharge an iPhone 16 Pro up to 60% in just 30 minutes
20W two-way fast charging – Charge your devices quickly and recharge the power bank itself in just 3 hours
Dual USB-C and USB-A ports – Charge two devices simultaneously
Smart LED display – Know exactly how much power remains—no more guessing
Compact and travel-friendly – Small enough to slip into any pocket or bag
Airline approved – 10000mAh capacity is well within carry-on limits

Key benefits at a glance:

10000mAh high-capacity battery – Multiple full charges for most smartphones
20W Power Delivery (PD 3.0) – Ultra-fast charging for compatible devices
22.5W Quick Charge (QC 3.0) – Rapid charging via USB-A port
Two-way fast charging – Fast charge your devices AND fast recharge the power bank
Smart digital display – Precise battery percentage at a glance
Dual ports – USB-C + USB-A for maximum compatibility
Small current mode – Safely charge earbuds, smartwatches, and other low-power devices
Premium metal build – Durable, scratch-resistant, and heat-dissipating
Comprehensive safety protections – 8 layers of protection for peace of mind
Compact and lightweight – Weighs just 217g

3. Key Features of the UGREEN PB311 Power Bank

3.1 10000mAh High-Capacity Battery – Power for Days

The UGREEN PB311 Power Bank packs a 10000mAh high-density Lithium Polymer battery . That’s enough capacity to:

Charge an iPhone 16 Pro up to 60% in just 30 minutes
Recharge most smartphones 2–3 times on a single charge
Keep your devices powered through a full day of active use

Whether you’re traveling, working remotely, or just out for the day, the UGREEN PB311 ensures you never run out of power.

3.2 20W Two-Way Fast Charging – Charge Both Ways, Fast

The UGREEN PB311 features two-way fast charging technology—meaning it can fast-charge your devices AND be fast-charged itself.

USB-C Input/Output – Supports 20W PD 3.0 charging
Fast recharge – The power bank itself can be fully recharged in approximately 3 hours using a 20W charger
2 times faster than ordinary power banks

No more waiting hours for your power bank to recharge. The UGREEN PB311 gets back to full power quickly, so it’s always ready when you need it.

3.3 USB-A 22.5W Fast Output – Lightning-Fast Device Charging

The USB-A port on the UGREEN PB311 delivers up to 22.5W of fast charging power . It supports multiple fast-charging protocols including QC 3.0, AFC, FCP, and SCP , ensuring rapid charging for a wide range of Android and iOS devices.

3.4 Smart Digital LED Display – Know Your Power

Unlike traditional power banks with vague 4-LED indicators, the UGREEN PB311 features a clear digital LED screen that shows the exact remaining battery percentage .

Precise power level – No more guessing
Real-time updates – See exactly how much charge remains
Always informed – Plan your charging needs with confidence

3.5 Dual Ports – Charge Two Devices Simultaneously

The UGREEN PB311 features two output ports:

1x USB-C – 20W PD 3.0 fast charging
1x USB-A – 22.5W QC 3.0 fast charging

You can charge two devices at the same time without compromising speed . The total output is limited to 5V/3A Max, ensuring safe and stable charging for both devices .

3.6 Small Current Mode – Safely Charge Earbuds and Smartwatches

The UGREEN PB311 includes small current mode technology that supports 200mA charging for small-current devices . This means you can safely charge:

Wireless earbuds
Smartwatches
Fitness bands
Bluetooth headphones

No more worrying about damaging your low-power devices with excessive current.

3.7 Premium Metal Build – Durable and Stylish

The UGREEN PB311 is crafted with a durable metal shell that provides:

Scratch resistance – Stays looking new longer
Heat dissipation – Keeps the power bank cool during charging
Premium feel – Looks and feels like a high-quality product
V-0 flame-retardant rating – Enhanced safety

3.8 Comprehensive Safety Protections – 8 Layers of Security

The UGREEN PB311 is engineered with intelligent voltage and current management and a total of 8 safety protections :

Over-charge protection
Over-discharge protection
Over-current protection
Over-voltage protection
Over-temperature protection
Short-circuit protection
Over-power protection
Electromagnetic field protection

These protections ensure safe charging for both the power bank and your connected devices.

3.9 Airline Approved – Travel with Confidence

With a capacity of 10000mAh / 37Wh, the UGREEN PB311 is well within airline carry-on limits (typically 100Wh maximum) . You can take it on flights without any hassle—perfect for business travelers and vacationers alike.

3.10 Compact and Portable – Slip It in Your Pocket

Measuring just 131.8 × 66 × 16.5 mm and weighing approximately 217g, the UGREEN PB311 is incredibly compact and lightweight . It’s designed to slip easily into your pocket, bag, or purse—making it the perfect travel companion.

4. Who Is This UGREEN Power Bank For?

The UGREEN PB311 Power Bank is designed for anyone who needs reliable portable power:

Business Professionals – Stay powered through back-to-back meetings and client calls
Remote Workers – Keep devices charged during power outages or when working away from outlets
Students – Power through lectures, study sessions, and group projects
Travelers & Digital Nomads – Stay connected during flights, road trips, and adventures
Content Creators – Keep cameras, phones, and accessories powered on the go
Everyday Users – Never worry about low battery during daily commutes and errands

5. Compatibility – Works with Almost Everything

The UGREEN PB311 Power Bank offers broad compatibility across a wide range of devices:

Smartphones:

Apple – iPhone 16/15/14/13/12/11 series, iPhone SE
Samsung – Galaxy S24/S23/S22/S21 series, Galaxy A series
Google – Pixel series
Huawei – P series, Mate series
Xiaomi, OPPO, OnePlus, Vivo, and more

Tablets:

iPad Pro / iPad Air / iPad mini
Samsung Galaxy Tab

Other Devices:

Wireless earbuds (AirPods, Galaxy Buds, etc.)
Smartwatches
Fitness bands
Bluetooth headphones
Portable speakers
Nintendo Switch

Supported Fast Charging Protocols:

USB Power Delivery 3.0 (PD 3.0)
Quick Charge 3.0 (QC 3.0)
AFC (Samsung Adaptive Fast Charging)
FCP (Huawei Fast Charging Protocol)
PPS (Programmable Power Supply)
SCP (Super Charge Protocol)

Included Accessories:

0.5M USB-A to USB-C cable – Ready to use out of the box

UGREEN PB311 Power Bank

6. How to Use the UGREEN PB311 Power Bank

Using the UGREEN PB311 Power Bank couldn’t be simpler:

Check the battery level – Press the power button to view the exact percentage on the smart LED display
Charge your device – Connect your phone, tablet, or other device to the USB-C or USB-A port using your device’s charging cable
Charge two devices – Connect a second device to the remaining port for simultaneous charging
Recharge the power bank – Connect the USB-C port to a 20W PD charger (not included) for fast recharging in approximately 3 hours
Store safely – When not in use, the power bank holds its charge for extended periods

Small Current Mode:

For earbuds, smartwatches, and other low-power devices, the UGREEN PB311 automatically detects and delivers the appropriate current

Pro Tips for Best Results:

Use a 20W USB-C PD wall charger for the fastest recharging
The power bank supports pass-through charging
The 10000mAh capacity is ideal for daily use—from commuting to travel

7. Why Buy from Calvantech?

At Calvantech, we’re committed to providing Kenyan customers with genuine, high-quality tech accessories at competitive prices. When you purchase the UGREEN PB311 Power Bank from us, you get:

100% Genuine UGREEN Products – No fakes, no compromises
Competitive Pricing – The best value for your money
Fast Delivery – Across Kenya
Expert Support – Our team is here to help you choose the right accessories

Explore our full range of accessories:

Other UGREEN products you might like:

UGREEN USB-C Hubs & Adapters – Explore our full UGREEN collection
Laptop Accessories – Find everything you need for your setup

8. Conclusion

The UGREEN PB311 Power Bank is the perfect portable charging solution for anyone who needs reliable, fast power on the go. With its 10000mAh high-capacity battery, 20W two-way fast charging, dual USB-C and USB-A ports, smart LED display, and premium metal build, this UGREEN power bank delivers everything you need in a compact, travel-friendly package.

Whether you’re a business professional powering through meetings, a student surviving back-to-back lectures, a traveler exploring new destinations, or simply someone who never wants to see the low-battery warning again, the UGREEN PB311 Power Bank ensures you stay connected—without compromise.

Ready to stay powered up? Order the UGREEN PB311 Power Bank today from Calvantech and experience the difference that genuine UGREEN quality makes.

👉 Shop UGREEN PB311 Power Bank Now