1. Introduction
The Havit PB90 is a portable power bank designed to charge your electronic devices on the go. It features a 10000mAh capacity, multiple input and output ports, and advanced safety protections. This manual provides essential information for the proper and safe operation of your power bank.
2. Safety Instructions
Please read and follow these safety instructions carefully to prevent damage to the product or injury to yourself.
- Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
- Do not immerse the power bank in water or other liquids.
- Avoid dropping or subjecting the power bank to strong impacts.
- Do not attempt to disassemble, repair, or modify the power bank.
- Keep out of reach of children.
- Use only certified charging cables and adapters.
- Stop using the power bank immediately if it becomes swollen, leaks, or emits an unusual odor.
- Dispose of the power bank according to local regulations.
3. Package Contents
Verify that all items are present in your package:
- Havit PB90 Power Bank
- USB Charging Cable (Type-C or Micro USB, depending on model)
- User Manual
4. Product Overview
Familiarize yourself with the components of your Havit PB90 Power Bank.

Figure 1: Front view of the Havit PB90 Power Bank, showing the Havit logo and LED indicator lights.

Figure 2: Close-up view of the Havit PB90 Power Bank's ports, including two USB-A output ports, one Micro USB input port, and one USB-C input/output port.
Components:
- USB-A Output Ports: For charging external devices.
- USB-C Port: Functions as both an input for charging the power bank and an output for charging devices (Power Delivery).
- Micro USB Input Port: For charging the power bank.
- LED Indicator Lights: Display the remaining battery level of the power bank.
- Power Button: Activates the power bank and checks battery level.
5. Setup
5.1 Charging the Power Bank
Before first use, fully charge your Havit PB90 Power Bank.
- Connect the provided USB charging cable to either the Micro USB input port or the USB-C input port on the power bank.
- Connect the other end of the cable to a USB wall charger (not included) or a computer's USB port.
- The LED indicator lights will illuminate to show the charging progress. When all lights are solid, the power bank is fully charged.
Note: For faster charging of the power bank, use a wall charger that supports 18W Power Delivery via the USB-C port.
6. Operating Instructions
6.1 Charging External Devices
To charge your smartphone, tablet, or other USB-powered devices:
- Connect your device's charging cable to one of the USB-A output ports or the USB-C output port on the power bank.
- Connect the other end of the cable to your device.
- The power bank will automatically begin charging your device. If it does not, press the power button once.
- The LED indicators will show the remaining battery level of the power bank during charging.
6.2 Checking Battery Level
Press the power button once to check the remaining battery level. The LED indicators will light up for a few seconds, with each light representing approximately 25% of the battery capacity.
- 4 LEDs: 75% - 100% charged
- 3 LEDs: 50% - 75% charged
- 2 LEDs: 25% - 50% charged
- 1 LED: 0% - 25% charged (recharge soon)
7. Maintenance
- 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 away from direct sunlight and extreme temperatures.
- If not used for extended periods, charge the power bank at least once every three months to maintain battery health.
8. Troubleshooting
8.1 Power Bank Not Charging
- Ensure the charging cable is securely connected to both the power bank and the power source.
- Try a different charging cable or wall adapter.
- Verify the power source is active.
8.2 Device Not Charging from Power Bank
- Ensure the power bank has sufficient charge (check LED indicators).
- Press the power button on the power bank to activate charging.
- Try a different charging cable for your device.
- Ensure your device is compatible with the power bank's output specifications.
8.3 Slow Charging
- Ensure you are using a high-quality charging cable.
- For optimal charging speed, use the USB-C Power Delivery port with a compatible device and cable.
- Charging multiple devices simultaneously may reduce individual charging speeds.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Havit |
| Model | PB90 (Hv-pb90) |
| Capacity | 10000mAh / 3.7V / 18.5Wh |
| Micro USB Input | DC 5V/2.0A, 9V/2.0A (18W) |
| USB-C Input | 18W |
| USB-C Output (A1) | 5V/2.4A, 9V/2.2A, 12V/1.67A (20W) |
| USB-A Output (A1 & A2) | 22.5W (5V/2.4A, 12V/1.5A, 5V/4.5A) |
| Dimensions | 137 × 70 × 16 mm |
| Weight | 206g ± 5g |
| Color | Black |
| Safety Features | Over-discharge, Short Circuit, Overcharge, Low Voltage Protection |
| GTIN (UPC) | 06939119041212 |
| Country of Origin | China |
10. Warranty
The Havit PB90 Power Bank comes with a one-year limited warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or natural disasters. Please retain your proof of purchase for warranty claims.
11. Support
If you encounter any issues or have questions regarding your Havit PB90 Power Bank that are not addressed in this manual, please contact Havit customer support. Refer to the official Havit website or your purchase documentation for contact information.


