Ugreen 20000mAh Two-way Fast Charging Power Bank – PB720

The Ugreen PB720 delivers exceptional portable power in a high-capacity package designed for extended device usage. This versatile power bank combines substantial energy storage with advanced charging technologies to keep multiple devices powered throughout demanding days.

Triple-Port Output System

The PB720 features a comprehensive three-port configuration to accommodate various charging needs:

• USB-C Port 1: Primary Power Delivery port offering up to 20W output
• USB-C Port 2: Secondary PD port with up to 18W output
• USB-A Port: Quick Charge compatible with up to 22.5W output
• Maximum Combined Output: 22.5W when multiple ports are used simultaneously

This versatile port arrangement enables the PB720 to charge smartphones, tablets, wireless earbuds, and other USB-powered devices efficiently. Additionally, the intelligent power distribution system automatically allocates appropriate power to each connected device based on their specific requirements.

Two-Way Fast Charging Technology

The PB720 incorporates bidirectional fast charging capabilities:

• Input Recharging: Up to 20W via USB-C Power Delivery
• Recharge Time: Approximately 6.5 hours from 0% to 100% (using a 20W PD adapter)
• Pass-Through Function: Simultaneously charges connected devices while recharging itself

This two-way fast charging technology significantly reduces downtime between uses. Moreover, the pass-through function transforms the PB720 into an efficient charging hub when access to wall outlets is limited, effectively serving as both power bank and charging station.

High-Capacity Design

The Ugreen PB720 houses a substantial 20000mAh battery in an optimized form factor:

• Dimensions: 148 × 70 × 16mm (5.83″ × 2.76″ × 0.63″)
• Weight: 340g (12oz)
• Profile: Slim design with rounded corners
• Surface: Scratch-resistant matte finish

Despite its large capacity, the PB720 maintains a relatively slim profile through efficient internal component arrangement. As a result, the power bank provides sufficient energy to fully recharge an iPhone 13 approximately 3.7 times or a Samsung Galaxy S22 about 3.5 times before requiring recharging itself.

Enhanced Safety Architecture

The Ugreen PB720 implements a comprehensive protection system:

• Temperature regulation prevents overheating during rapid charging
• Voltage regulation maintains stable output across varying battery levels
• Current monitoring protects against potentially damaging power surges
• Short-circuit protection automatically disconnects power flow when hazards are detected
• Battery cell health management extends overall lifespan

These layered safety measures operate continuously to safeguard both the power bank and connected devices. Furthermore, the PB720 utilizes high-quality lithium polymer battery cells with enhanced stability characteristics for additional safety.

Digital LED Display

The PB720 features an integrated digital display that provides precise information:

• Numerical percentage indicator shows exact remaining capacity
• Output wattage indication during device charging
• Input wattage indication during power bank recharging
• Automatic brightness adjustment based on ambient lighting conditions

This informative display eliminates guesswork when managing power resources. Subsequently, users can make informed decisions about device usage patterns and charging priorities based on accurate capacity data.

Durable Construction

The PB720 is built with longevity in mind:

• Impact-resistant outer shell withstands everyday bumps and minor drops
• Reinforced port structures maintain connection integrity
• Premium internal components selected for extended operational lifespan
• High-quality battery cells rated for 500+ charge cycles with minimal capacity degradation

Each design element contributes to the overall reliability of the PB720. Consequently, the power bank maintains consistent performance throughout its operational life even with regular daily use.

Ideal Users

The Ugreen PB720 is particularly well-suited for:

• Frequent travelers requiring multiple days of device power – the 20000mAh capacity provides approximately 5 full smartphone charges without access to wall outlets
• Power-intensive users operating multiple devices simultaneously – the triple-port design supports charging a phone, tablet, and wireless earbuds concurrently
• Professionals dependent on device uptime – the fast charging capabilities can restore 50% smartphone battery in approximately 30 minutes
• Outdoor enthusiasts needing reliable power reserves – the durable construction withstands varied environmental conditions while providing extended battery backup

Package Contents

Each Ugreen PB720 package includes:

• 20000mAh Two-way Fast Charging Power Bank (PB720)
• USB-C to USB-C charging cable (30cm)
• Quick start guide and warranty information
• Travel pouch

Technical Specifications

Battery Specifications

• Capacity: 20000mAh / 74Wh
• Cell Type: Lithium Polymer
• Energy Density: Enhanced for optimal capacity-to-size ratio
• Rated Cycles: 500+ with 80% capacity retention
• Energy Efficiency: >87%

Output Specifications

• USB-C Port 1 (PD): 5V/3A, 9V/2.22A, 12V/1.67A (20W max)
• USB-C Port 2 (PD): 5V/3A, 9V/2A (18W max)
• USB-A Port (QC): 4.5V/5A, 5V/4.5A, 9V/2A, 12V/1.5A (22.5W max)
• Maximum Combined Output: 22.5W

Input Specifications

• USB-C Input (PD): 5V/3A, 9V/2.22A, 12V/1.67A (20W max)
• Full Recharge Time: ~6.5 hours (with 20W PD adapter) ~10 hours (with standard 10W adapter)

Intelligent Features

• Dynamic Power Allocation
• Device Compatibility Detection
• Temperature Monitoring System
• Low-Power Device Charging Mode
• Battery Health Management

Physical Attributes

• Dimensions: 148 × 70 × 16mm
• Weight: 340g
• Color: Black with matte finish
• Display Type: Digital LED with percentage indicator
• Button: Single multifunction button for power/status

Compatibility

• Smartphones: iPhone, Samsung, Google Pixel, etc.
• Tablets: iPad, Samsung Tab, etc.
• Wireless Earbuds: AirPods, Galaxy Buds, etc.
• Portable Game Consoles: Nintendo Switch Lite
• Other USB-powered devices