Introduction
Thank you for choosing the UGREEN PB728 200W 25000mAh Portable Power Bank. This high-capacity power bank is designed to provide efficient and fast charging for a wide range of devices, from smartphones and tablets to laptops and drones. Featuring a smart digital display, built-in retractable and lanyard-style cables, and advanced safety features, the PB728 ensures a reliable power source wherever you go. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new power bank.
Image: UGREEN PB728 Portable Power Bank with screen and built-in cable, showing 100% charge. It is shown with a lanyard for portability.
Setup
1. Unboxing
Carefully remove the UGREEN PB728 Power Bank and any included accessories from its packaging. Verify that all components are present.
2. Initial Charge
Before first use, it is recommended to fully charge your power bank. Connect the power bank to a power adapter using one of the built-in USB-C cables or an external USB-C cable. For the fastest charging, use a 100W Power Delivery (PD) charger. The power bank supports 100W self-charging and can reach a full charge in approximately 2.5 hours.
Image: The UGREEN PB728 Power Bank being recharged, indicating a full charge takes 2.2 hours with a 100W PD charger.
3. Understanding Built-in Cables
The PB728 features two built-in cables for convenience:
- 65cm Retractable USB-C Cable: This cable can be pulled out to your desired length (up to 65cm) with 5-level length adjustment and retracts for neat storage.
- 35cm Lanyard-style USB-C Cable: This braided cable doubles as a lanyard for easy carrying and can also be used for charging.
Image: The power bank in outdoor settings, highlighting the 65cm retractable C Cable with 5-level length adjustment and the 35cm Lanyard-style C Cable.
Operating Instructions
1. Charging Your Devices
The UGREEN PB728 supports fast charging for a wide array of devices. It features AI Smart Power Allocation to optimize charging speeds across multiple ports.
- Single-Port Charging: Any of the USB-C ports (built-in or external) can deliver up to 100W Max. The USB-A port can deliver up to 33W Max.
- Multi-Port Simultaneous Charging: The power bank can charge multiple devices simultaneously. The total output is 200W Max.
Image: The UGREEN PB728 power bank simultaneously charging a laptop and two smartphones, demonstrating AI Smart Power Allocation and 100W Max for C ports.
Charging Configurations:
The power bank intelligently distributes power based on connected devices. Here are some typical output distributions:
Image: Details the maximum output for each port: C1 Retractable Cable (100W Max), C1 Braided Cable (100W Max), C0 (100W Max), Port A (33W Max).
Image: Diagrams showing single-port charging configurations. All C-ports can deliver 100W, and the USB-A port delivers 22.5W.
Image: Diagrams showing various 2-port simultaneous charging configurations, such as two C-ports at 100W each, or one C-port at 100W and the A-port at 22.5W.
Image: Diagram showing a 3-port simultaneous charging configuration: two C-ports at 100W each, and the A-port at 22.5W.
2. Smart Digital Display
The integrated smart window provides real-time visibility into the power bank's status, including:
- Current battery percentage.
- Charging/discharging status.
- Power output/input.
Image: Infographic highlighting the 'Smart Window' feature for real-time power/health status visibility.
Maintenance
1. Cleaning
Wipe the power bank with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the device.
2. Storage
Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. Avoid storing it in environments with high humidity.
3. Battery Care
To prolong battery life, avoid fully discharging the power bank frequently. Recharge it when the battery level is low. The PB728 features an extended cycle life of approximately 1000 charge-discharge cycles, significantly outperforming ordinary power banks.
Image: Graph showing 'Extended cycle life 400%', with UGREEN Power Bank achieving 1000 cycles compared to 200 cycles for an ordinary power bank.
Troubleshooting
- Device not charging from power bank:
- Ensure the power bank is sufficiently charged. Check the digital display for battery level.
- Verify that the charging cables are securely connected to both the power bank and your device.
- Try a different cable or port to rule out a faulty connection or cable.
- Ensure your device is compatible with the power bank's output specifications.
- Power bank not charging:
- Ensure the charging adapter is working and properly connected.
- Use a compatible USB-C power adapter (preferably 100W PD for optimal speed).
- Try a different charging cable.
- Slow charging:
- Ensure both your device and the cable support fast charging protocols (PD, PPS, QC, UFCS, SCP, AFC).
- When charging multiple devices, the total output is shared, which may reduce individual port speeds.
- Power bank feels excessively hot:
- The PB728 incorporates 4-Temperature Control Technology to manage heat. If it feels unusually hot, disconnect all devices and allow it to cool down in a well-ventilated area.
- Avoid charging in direct sunlight or enclosed spaces.
Image: Explains '4-Temperature Control Technology' with AI intelligent temperature control network monitoring.
- Digital display not working:
- Ensure the power bank is turned on (if it has a power button).
- If the power bank is completely discharged, the screen may not light up until it receives some charge.
Specifications
| Feature | Detail |
|---|---|
| Brand | UGREEN |
| Model | PB728 |
| Battery Type | Lithium-ion Battery (Changhong Sanjie 21700 automotive-grade cells) |
| Battery Capacity | 25000mAh |
| Rated Energy | 90Wh (18V5000mAh) |
| USB-C/C1/C2 Line Input | 5A 100W Max |
| C1/C2 Line Output | 10V=2.25A / 5V=3A / 9V=3A / 12V=3A / 15V=3A / 20V=5A (100W Max) |
| USB-A Output | 10V=2.25A / 5V=3A / 9V=2A / 12V=1.5A (33W Max) |
| Total Output | 200W Max |
| Product Size | 158 x 54 x 50 mm |
| Net Weight | 623g |
| Shell Material | PC+ABS (V-0 fire-resistant) |
| Certification | CE, National 3C Certification |
| Features | Built-in Retractable & Lanyard Cables, Digital Display, AI Smart Power Allocation, 4-Temperature Control Technology, Nanoscale Heat-Dissipating Aluminum Film, Superconductive Micro-Nano Heat Dissipation Silicone, Aerospace-grade Copper Heat Sink, Non-slip Silicone Mat |
| Compatibility | Laptops (Apple, Lenovo, Huawei, Xiaomi, Dell), Tablets (Apple iPad), Smartphones (iOS, Android, HarmonyOS, Apple, Huawei, Xiaomi, Vivo, OPPO, Samsung), Low-current devices (Bluetooth headsets, smartwatches, smart bands, small fans), Drones (DJI Pocket 3, DJI Mini3) |
Image: Detailed table of product parameters for the UGREEN PB728 Power Bank.
Image: Diagram showing the dimensions of the power bank: 158mm length, 54mm width, 50mm height.
User Tips
- Maximize Portability: Utilize the retractable USB-C cable for a clutter-free experience and the lanyard-style cable for secure carrying, especially during travel or outdoor activities.
- Monitor Power: Regularly check the smart digital display to keep track of the power bank's battery level and charging status of connected devices.
- Optimal Charging: For the fastest recharge of the power bank itself, use a 100W Power Delivery (PD) wall charger.
- Travel-Friendly: The PB728 is suitable for air travel and high-speed trains, making it an ideal companion for your journeys.
Image: People relaxing outdoors, using the power bank to charge devices, illustrating its portability and utility for travel.
Warranty and Support
The UGREEN PB728 Portable Power Bank comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures reliable performance under normal use.
For technical support, warranty claims, or any questions regarding your product, please contact UGREEN customer service through the official UGREEN website or your point of purchase. Please have your purchase receipt and product model number (PB728) ready when contacting support.