Description
UGREEN 30W Two Way Fast Charging 20000mAh Power Bank
The UGREEN 55837B 20000mAh Power Bank is a high-capacity portable charging solution designed for users who need reliable power throughout the day. With a 20,000mAh battery, up to 30W two-way fast charging, dual USB-C outputs, multiple fast-charging protocols, and ThermalGuard temperature management, it provides a practical way to keep compatible smartphones, tablets, and other USB-powered devices charged while travelling, working, studying, commuting, or during everyday use.
20,000mAh High-Capacity Battery
The UGREEN 55837B features a 20,000mAh battery capacity, providing extended portable power when access to a wall charger is limited.
Its large capacity makes it suitable for:
- Travel
- Commuting
- Office use
- University and study
- Outdoor activities
- Everyday device charging
The high-capacity battery provides a convenient backup power source for compatible portable electronics throughout the day.
Up to 30W Two-Way Fast Charging
The UGREEN 55837B supports up to 30W fast charging and two-way charging.
Its USB Type-C connectivity allows the power bank to be recharged while also providing fast charging to compatible connected devices. Depending on the supported charging protocol and connected device, it can provide up to 22.5W fast charging output.
This makes the 55837B a practical option for users who want both high battery capacity and modern fast-charging support.
Multiple Fast-Charging Protocols
The UGREEN 55837B supports a range of mainstream fast-charging protocols, providing compatibility with various modern devices.
Supported protocols include:
- Power Delivery (PD)
- Quick Charge (QC)
- SCP
- FCP
- AFC
- Other mainstream fast-charging functions
The power bank can work with compatible devices and charging standards to provide an appropriate charging output.
Charge Two Devices Simultaneously
The UGREEN 55837B features two USB Type-C output connectors, allowing compatible devices to be charged simultaneously.
This is particularly useful when travelling with multiple devices, such as:
- Smartphone
- Tablet
- Wireless earbuds
- Other compatible USB-powered devices
Instead of waiting for one device to finish charging before connecting another, you can use the available outputs to charge two compatible devices at the same time.
ThermalGuard Temperature Management
The UGREEN 55837B incorporates ThermalGuard temperature management technology to monitor and manage temperature during charging.
According to the supplied specifications, the system performs approximately 200 temperature measurements per second, providing real-time temperature monitoring and adjustment during charging.
This rapid monitoring is designed to provide more precise thermal control while the power bank is operating, helping manage charging conditions during everyday use.
USB Type-C Connectivity
The power bank uses USB Type-C connectivity for input and output, making it suitable for users who already use USB-C charging cables with their modern portable electronics.
USB-C connectivity provides a convenient charging interface for compatible smartphones, tablets, accessories, and other USB-C devices.
Portable and Practical Design
The UGREEN 55837B combines a 20,000mAh battery capacity with a practical portable design.
Its plastic body and beige color give it a clean, modern appearance, while its portable form makes it suitable for carrying inside a:
- Backpack
- Laptop bag
- Travel bag
- Everyday carry setup
The power bank is designed primarily for wired charging and does not include wireless charging or MagSafe functionality.
Designed for Smartphones and Portable Devices
The UGREEN 55837B is intended for compatible smartphones, tablets, and other USB-powered portable electronics.
It is not designed specifically for laptop charging and does not include wireless charging, MagSafe functionality, or a built-in flashlight.
This makes the product particularly focused on high-capacity wired charging for everyday portable devices.
Ideal for Travel and Everyday Use
The UGREEN 55837B is a practical portable charging solution for users who need additional battery power throughout the day.
Whether you’re travelling, commuting, attending classes, working away from a wall outlet, or spending time outdoors, its 20,000mAh capacity and fast-charging support provide convenient backup power for compatible devices.
Key Features
- 20,000mAh high-capacity battery
- Up to 30W two-way fast charging
- Up to 22.5W fast charging depending on supported protocol and device
- USB Type-C input
- 2 × USB Type-C outputs
- Supports simultaneous charging of two devices
- PD fast charging support
- QC fast charging support
- SCP fast charging support
- FCP fast charging support
- AFC fast charging support
- ThermalGuard temperature management
- Approximately 200 temperature measurements per second
- Real-time temperature monitoring and adjustment
- Plastic body
- Beige color
- Wired charging design
- No wireless charging
- No MagSafe support
- No built-in flashlight
- Not designed for laptop charging
Why Choose the UGREEN 55837B?
The UGREEN 55837B 20000mAh 30W Power Bank combines high battery capacity with modern wired fast-charging technology. Its 20,000mAh capacity, up to 30W two-way charging, dual USB-C outputs, multiple charging protocols, simultaneous device charging, and ThermalGuard temperature monitoring make it a practical choice for everyday portable power.
For users who primarily need reliable wired charging for smartphones, tablets, and other compatible USB-powered devices, the 55837B provides a convenient high-capacity solution that is easy to carry and use.
Order UGREEN 55837B in Sri Lanka
Buy the UGREEN 55837B 20000mAh 30W Two-Way Fast Charging Power Bank from Clickmart.lk and enjoy islandwide delivery within 2–4 working days.
Keep your compatible devices powered throughout the day with the convenience of 20,000mAh capacity, USB-C connectivity, fast-charging protocol support, and ThermalGuard temperature management.
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