Ugreen 20000mAh Two-way Fast Charging Power Bank (UG- 25188)

Ugreen 20000mAh Two-way Fast Charging Power Bank (UG-25188)

The Ugreen 20000mAh Two-way Fast Charging Power Bank delivers exceptional portable power in a streamlined design. This UG-25188 model combines high capacity with advanced charging technologies to keep multiple devices powered throughout extended use.

Bidirectional Fast Charging Technology

The UG-25188 implements sophisticated charging protocols for both input and output:

• 20W Power Delivery (PD) 3.0 fast charging capability
• Quick Charge (QC) 4.0/3.0/2.0 compatibility for accelerated charging
• Bidirectional USB-C port supporting both input and output
• Recharges completely in approximately 4.5 hours with 20W PD charger
• Pass-through charging for powering devices while recharging

Additionally, the UG-25188 features intelligent current recognition that automatically adjusts output based on the connected device’s specific requirements.

Versatile Multi-Port Configuration

The UG-25188 offers multiple connection options to accommodate various devices:

• 1× USB-C port with bidirectional functionality (input/output)
• 2× USB-A ports with QC support for legacy devices
• Simultaneous charging of up to three devices
• Smart power distribution when multiple devices are connected
• LED power indicator displaying remaining capacity in 25% increments

Furthermore, the UG-25188 maintains stable output across all ports through advanced power management circuitry that prevents performance degradation during multi-device charging.

High-Capacity Power Reservoir

The UG-25188 provides substantial battery capacity for extended device usage:

• 20000mAh nominal battery capacity (74Wh)
• 12000-14000mAh effective capacity after conversion losses
• Charges an iPhone 13 approximately 4-5 times
• Provides about 2.5 full charges for a Samsung Galaxy S22
• Delivers roughly 1.5 charges to an iPad Pro 11-inch

Moreover, the UG-25188 utilizes high-density lithium polymer cells that maintain performance integrity even after hundreds of charging cycles through sophisticated battery management.

Comprehensive Safety Mechanisms

The UG-25188 incorporates multiple protection systems to ensure safe operation:

• Intelligent temperature regulation prevents overheating
• Overcharge protection stops charging at 100%
• Short circuit protection guards against electrical damage
• Input overvoltage protection shields internal components
• Over-discharge protection prevents battery cell damage

The UG-25188 also features specialized current stabilization technology that delivers clean power to sensitive devices, protecting their internal batteries from irregular voltage fluctuations.

Durable, Travel-Friendly Design

The UG-25188 features practical construction elements for everyday portability:

• Impact-resistant ABS plastic housing with matte finish
• Reinforced internal structure preventing damage from minor drops
• Compact dimensions of 150×70×18mm for convenient carrying
• Rounded edges for comfortable handling
• Weight of approximately 350g balancing capacity with portability

Additionally, the UG-25188 incorporates subtle textured side panels that enhance grip during use, reducing the risk of accidental drops when connecting or disconnecting devices.

Ideal Users for the Ugreen 20000mAh Power Bank (UG-25188)

• Extended business travelers: The high capacity and fast charging capabilities make the UG-25188 perfect for professionals who spend multiple days away from reliable power sources while needing to maintain several devices.
• Outdoor enthusiasts: Weekend campers and hikers will appreciate the UG-25188’s ability to power multiple devices across several days without access to electrical outlets.
• Power-intensive professionals: Content creators and mobile professionals using power-hungry devices will benefit from the UG-25188’s substantial capacity and fast charging capabilities during long workdays.
• Family travelers: The multi-port configuration allows the UG-25188 to serve as a central charging hub for families with multiple devices during travel, eliminating the need for access to multiple outlets.

Technical Specifications

Capacity Specifications

• Rated capacity: 20000mAh (74Wh)
• Battery type: Lithium polymer
• Energy efficiency: 60-70%
• Lifecycle: 500+ full charge cycles to 80% capacity
• Shelf life: Maintains 80% charge after 4 months of storage

Output Specifications

• USB-C output: 5V/3A, 9V/2.22A, 12V/1.67A (20W maximum)
• USB-A output 1: 5V/3A, 9V/2A, 12V/1.5A (18W maximum)
• USB-A output 2: 5V/3A, 9V/2A, 12V/1.5A (18W maximum)
• Maximum combined output: 22.5W
• Output protocols: PD 3.0, QC 4.0/3.0/2.0, FCP, AFC, Apple 2.4A

Input Specifications

• USB-C input: 5V/3A, 9V/2.22A, 12V/1.67A (20W maximum)
• Recharge time: Approximately 4.5 hours with 20W PD charger
• Input protocols: PD 3.0, QC 3.0/2.0, FCP, AFC

Physical Characteristics

• Dimensions: 150×70×18mm
• Weight: Approximately 350g
• Case material: ABS plastic with matte finish
• Available colors: Black
• LED indicators: 4-stage power level display

Safety Features

• Temperature protection: Operating range 0°C to 45°C
• Overcurrent protection: Automatic cutoff if current exceeds safe levels
• Short circuit protection: Instant power disconnection
• Overcharge protection: Prevents battery damage
• Over-discharge protection: Maintains battery health
• Certification: CE, FCC, RoHS compliant

Package Contents

• Ugreen 20000mAh Two-way Fast Charging Power Bank (UG-25188)
• USB-C to USB-C charging cable (30cm)
• User manual
• 24-month warranty card