1. Introduction
Thank you for purchasing the AONIMI HX200K3 36800mAh Solar Power Bank. This portable charger is designed to provide reliable power for your electronic devices, featuring multiple output ports, USB-C input/output, and an emergency solar charging function. Please read this manual carefully before use to ensure optimal performance and safety.
2. Product Overview
2.1 Package Contents
- AONIMI HX200K3 36800mAh Solar Power Bank x 1
- USB-C Charging Cable x 1
- User Manual x 1
2.2 Product Features
- High Capacity: 36800mAh battery for extended power.
- Multiple Outputs: Four USB-A (5V/2.1A) ports and one USB-C (5V/3A) port for charging up to 5 devices simultaneously.
- Dual Input: USB-C (5V/3A) for fast wall charging and solar panel for emergency recharging.
- Durable Design: IP67 waterproof, dust-proof, and shockproof construction, suitable for outdoor use.
- Integrated LED Flashlight: Super bright LED for illumination in dark environments.
- Advanced Safety: Built-in intelligent chip provides protection against over-charge, over-discharge, over-voltage, over-current, and short-circuit.
2.3 Component Identification
Refer to the diagram below for identification of the power bank's components and ports.

Image Description: This image displays the AONIMI HX200K3 Solar Power Bank from a top-down perspective, highlighting its dimensions (6.3 inches length, 3.24 inches width, 1.01 inches thickness) and labeling its various components. These include the power on/off button, solar charging panel, USB-C output/input port, two USB 2.1A output ports, an LED flashlight, and LED indicators for battery status.
- Power Button: Press once to check battery level, press and hold to turn on/off the LED flashlight.
- Solar Panel: For emergency charging under direct sunlight.
- USB-C Port: Functions as both input for charging the power bank and output for charging devices.
- USB-A Output Ports: Four ports for charging various USB-powered devices.
- LED Flashlight: Provides illumination.
- LED Indicators: Display the remaining battery capacity.
3. Setup
3.1 Initial Charging
Before first use, it is recommended to fully charge the power bank using a wall adapter and the provided USB-C cable. This ensures the battery is properly calibrated and ready for use.
- Connect the supplied USB-C cable to the USB-C input/output port on the power bank.
- Connect the other end of the USB-C cable to a compatible USB wall adapter (not included).
- The LED indicators will illuminate to show the charging progress. All four LEDs will be solid when fully charged.

Image Description: This image illustrates the two primary methods for charging the AONIMI Solar Power Bank. The top panel shows a USB-C cable connected to the power bank's USB-C port, indicating USB-C charging. The bottom panel shows the power bank with its solar panel exposed to sunlight, indicating solar charging. LED indicators are visible, showing charging status.
4. Operating Instructions
4.1 Checking Battery Level
Press the power button once to check the remaining battery capacity. The LED indicators will light up, with each LED representing approximately 25% of the battery charge.
- 1 LED: 0-25%
- 2 LEDs: 25-50%
- 3 LEDs: 50-75%
- 4 LEDs: 75-100%
4.2 Charging Devices
The power bank can charge up to five devices simultaneously using its USB-A and USB-C output ports.
- Connect your device's charging cable to one of the USB-A or the USB-C output ports on the power bank.
- Connect the other end of the cable to your device.
- The power bank will automatically begin charging your device. If not, press the power button once.
- Disconnect your device once charging is complete.

Image Description: This image demonstrates the AONIMI Solar Power Bank's capability to charge five devices simultaneously. It shows the power bank connected via USB cables to four smartphones and one tablet, all receiving power. The text overlay indicates "5 charge devices at once" and "4x USB + 1x USB-C".
4.3 Solar Charging (Emergency Use Only)
The solar panel is designed for emergency charging when no other power source is available. It is not intended as the primary charging method due to variations in sunlight intensity and conversion rates, which can result in slow charging times.
- Place the power bank in direct sunlight.
- Ensure the solar panel is facing the sun for maximum exposure.
- A green indicator light (if present) or the main LED indicators will show that solar charging is active.
Note: For daily use, always recharge the power bank via the USB-C port with a wall adapter for faster and more efficient charging.

Image Description: This image depicts the AONIMI Solar Power Bank placed on an outdoor table, with its solar panel exposed to sunlight. It is connected via a USB cable to a smartphone, which is actively charging. The image highlights the "Sunlight Conversion Electricity" feature, showing arrows indicating energy flow from the solar panel to the phone.
4.4 Using the LED Flashlight
The integrated LED flashlight is useful for outdoor activities or in emergency situations.
- To turn on/off: Press and hold the power button for approximately 3 seconds.
- To cycle modes: Once the flashlight is on, press the power button briefly to cycle through modes (e.g., steady light, SOS, strobe).
- To turn off from any mode: Press and hold the power button again for approximately 3 seconds.

Image Description: This image features the AONIMI Solar Power Bank in an outdoor setting, emphasizing its utility for activities like hiking. The main scene shows a person hiking with a backpack, and insets highlight the power bank's LED flashlight illuminating a path at night and its large capacity for outdoor use.
5. Maintenance
- Cleaning: Wipe the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, charge it to about 50-75% capacity every 3 months to prolong battery life.
- Water Resistance: While IP67 rated, avoid prolonged submersion in water. Ensure all ports are dry before charging or using.
- Avoid Drops: Despite its shockproof design, avoid dropping the device from significant heights to prevent internal damage.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Cable is faulty or not properly connected; wall adapter is not working; power bank is fully charged. | Check cable connections; try a different USB-C cable and wall adapter; verify LED indicators (all solid means fully charged). |
| Device not charging from power bank | Power bank battery is low; device cable is faulty; power bank is off; device is incompatible. | Check power bank battery level; try a different charging cable; press the power button to activate output; ensure device is compatible. |
| Solar charging is slow or not working | Insufficient sunlight; solar panel is dirty or obstructed; solar charging is for emergency use only. | Place in direct, strong sunlight; clean the solar panel; use wall charging for primary power. |
| LED flashlight not turning on | Power button not held long enough; power bank battery is depleted. | Press and hold the power button for 3 seconds; charge the power bank. |
7. Specifications
| Model Number | HX200K3 |
| Battery Capacity | 36800mAh (Lithium Polymer) |
| USB-C Input | 5V/3A |
| Solar Panel Input | Emergency power source only |
| USB-C Output | 5V/3A |
| USB-A Output (x4) | 5V/2.1A (each) |
| Dimensions (L x W x T) | 6.3 x 3.24 x 1.01 inches (160 x 82.3 x 25.6 mm) |
| Weight | 372 Grams |
| Waterproof Rating | IP67 |
| Special Features | LED Flashlight, Portable, Waterproof, Dust-proof, Shockproof |
| Protections | Over-charge, Over-discharge, Over-voltage, Over-current, Short-circuit, Overheating |
8. Warranty and Support
The AONIMI HX200K3 Solar Power Bank comes with a Limited Warranty. Please refer to the product packaging or contact customer support for specific warranty terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact:
- Manufacturer: Dongguan Yuanhaoxun Technology Co., Ltd.
- Customer Service: Refer to the contact information provided with your purchase or on the official AONIMI website.
Lifetime technical support and 24-hour customer service are typically provided.