1. Introduction
This user manual provides essential information for the safe and efficient operation of your Energizer UE20003PQ 20,000mAh Power Bank. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.
2. Product Overview
The Energizer UE20003PQ is a high-capacity portable power bank designed to charge your mobile devices on the go. It features multiple output ports and fast charging capabilities.
2.1 Key Features
- Capacity: 20,000mAh for extended power.
- Dual Output: One Smart USB-A and one USB-C output for charging two devices simultaneously.
- USB-C Power Delivery: Fast charging for USB-C devices and new iPhones (0-50% in 30 minutes).
- Smart USB-A 18W: Provides fast charging for compatible Samsung, Huawei, and other Android devices.
- LCD Indicator: Displays battery level and charging status.
- Safety Guarantees: Protection against short circuit, overcurrent, overcharge, and overdischarge.
2.2 Package Contents
- 1 x Energizer UE20003PQ Power Bank
- 1 x Micro USB charging cable
- 1 x User manual (this document)
2.3 Product Diagram

Figure 2.3.1: Front view of the Energizer UE20003PQ Power Bank showing the digital display indicating 100% charge.

Figure 2.3.2: Angled view of the power bank, highlighting the USB-A, USB-C, and Micro USB ports, along with the digital display.

Figure 2.3.3: Top view of the power bank, clearly showing the USB-A output (green), USB-C input/output, and Micro USB input ports.
3. Setup
3.1 Initial Charging of the Power Bank
- Connect the supplied Micro USB cable to the Micro USB input port on the power bank.
- Connect the other end of the Micro USB cable to a USB wall adapter (not included) or a computer's USB port.
- Alternatively, use a USB-C to USB-C cable (not included) to charge the power bank via its USB-C port for faster charging.
- The LCD indicator will show the charging status and battery percentage. Charge the power bank until it reaches 100% for optimal initial use.
Note: A full charge from 0% to 100% can take approximately 6 hours with a fast charger (QC/PD) or 9 hours with a standard 5V-2A USB charger.
4. Operating Instructions
4.1 Charging Your Devices
- Identify the appropriate charging cable for your device (USB-A to device, or USB-C to device).
- Connect one end of your device's charging cable to the USB-A output port or the USB-C output port on the power bank.
- Connect the other end of the cable to your mobile device (smartphone, tablet, etc.).
- The power bank will automatically begin charging your device. The LCD indicator will show the power bank's remaining battery level.

Figure 4.1.1: Illustrates the power bank actively charging a smartphone, with the power bank's display showing the charge percentage.

Figure 4.1.2: The power bank connected and charging a Samsung smartphone, both resting on a wooden surface.
4.2 Checking Battery Level
The LCD display on the power bank shows the current battery percentage. When charging the power bank or a device, a green dot may appear on the display, indicating fast charging mode (QC/PD) is active.
5. Maintenance
- Keep the power bank away from extreme temperatures, direct sunlight, and humid environments.
- Do not expose the power bank to water or other liquids.
- Clean the power bank with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store the power bank in a cool, dry place when not in use for extended periods.
- Avoid dropping or subjecting the power bank to strong impacts.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Charging cable is faulty or not properly connected. Wall adapter is not working. | Ensure the charging cable is securely connected to both the power bank and the power source. Try a different cable or wall adapter. |
| Device not charging from power bank | Power bank battery is depleted. Device cable is faulty or not properly connected. Device is incompatible. | Recharge the power bank. Ensure the device's charging cable is securely connected. Try a different cable. Verify device compatibility. |
| Slow charging | Using a standard charger instead of a fast charger. Cable quality. | For faster charging, use a QC/PD compatible wall adapter and a high-quality USB-C to USB-C cable (for USB-C PD) or a compatible USB-A cable. |
| LCD display not working | Power bank is off or damaged. | Ensure the power bank is turned on (if applicable, some models have a button). If still not working, contact customer support. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | UE20003PQ |
| Capacity | 20,000 mAh |
| Battery Cell Composition | Lithium Polymer |
| Input Ports | USB-C, Micro USB |
| Output Ports | 1 x Smart USB-A, 1 x USB-C |
| Special Features | Fast Charging (Power Delivery, Smart USB-A 18W) |
| Dimensions (L x W x H) | 13.8 x 7 x 2.7 cm |
| Weight | 340 g |
| Color | Black |
8. Warranty and Support
For warranty information and customer support, please refer to the official Energizer website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.
This product guarantees against short circuit, overcurrent, overcharge and overdischarge for your power bank and devices.