1. Product Overview
The Hiluckey HI-S025 Solar Charger Power Bank is a high-capacity portable charging solution designed for outdoor enthusiasts and emergency preparedness. It features multiple charging options, including efficient solar panels and fast USB-C input/output, ensuring your devices remain powered wherever you are.
- Super-Fast Charging: Charges devices rapidly, for example, an iPhone 11 up to 65% in just 30 minutes.
- Solar Charging: Equipped with 4 high-efficiency solar panels, generating up to 6W of power in direct sunlight.
- Massive Capacity: A large battery capacity allows charging an iPhone up to 8 times or a tablet 3.5 times.
- Built for the Outdoors: Durable, dust, and drop-resistant construction with a foldable design for portability.
- Fast Recharging: The power bank itself can be fully recharged via high-speed USB-C in approximately 5 hours.

2. Setup and Initial Use
2.1 Initial Charging
Before first use, it is recommended to fully charge the power bank via a wall adapter using the USB-C input. This ensures the internal battery is at its optimal capacity. A full charge typically takes about 5 hours.
2.2 Solar Charging
Unfold the four solar panels and place them in direct sunlight. The solar panels will begin to convert sunlight into electrical energy to charge the internal battery. An indicator light will turn green when solar charging is active. Note that solar charging is supplementary and may take longer than wall charging, especially in less than ideal sunlight conditions.


2.3 Checking Battery Level
Press the power button briefly to check the current battery level indicated by the LED lights on the device.
3. Operating Instructions
3.1 Charging Your Devices
Connect your electronic devices (smartphones, tablets, etc.) to the power bank using a compatible USB cable. The power bank features multiple output ports: 2 x USB Type-A ports and 1 x USB Type-C port. The device will automatically begin charging.



3.2 Using the LED Flashlight
To activate the built-in LED flashlight, press and hold the power button for 3 seconds. Press again to cycle through different modes (e.g., steady light, strobe, SOS) if available. Press and hold for 3 seconds again to turn off the flashlight.


4. Maintenance
To ensure the longevity and optimal performance of your Hiluckey Solar Charger Power Bank, follow these maintenance guidelines:
- Keep the solar panels clean and free from dust or debris to maximize charging efficiency. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures (hot or cold) for prolonged periods.
- Store the power bank in a cool, dry place when not in use.
- Do not attempt to disassemble or repair the device yourself, as this will void the warranty and may cause damage.
5. Troubleshooting
- Device not charging: Ensure your device is properly connected to an output port. Check the power bank's battery level. If the power bank is depleted, recharge it via USB-C or solar panels.
- Slow solar charging: Solar charging efficiency depends on direct sunlight. Ensure panels are fully unfolded and facing the sun without obstruction. Solar charging is supplementary and slower than wall charging.
- Flashlight not working: Press and hold the power button for 3 seconds to activate. If the battery is low, the flashlight may not function.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | HI-S025 |
| Battery Capacity | 27000mAh (Note: Product title mentions 27000mAh, specifications mention 25000mAh. Using 27000mAh as per title for consistency.) |
| Solar Panels | 4 Foldable Panels, up to 6W output in direct sunlight |
| Output Ports | 2 x USB Type-A, 1 x USB Type-C |
| Input Ports | USB Type-C (for fast recharging) |
| Special Features | Durable Construction, Fast Charging, Built-in LED Flashlight |
| Dimensions (L x W x Thickness) | 6.14"L x 3.23"W x 1.42"Th |
| Weight | 0.56 Kilograms |
| Compatible Devices | Smartphones (iPhone, Samsung, LG, Motorola, Nokia, One Plus), Tablets (iPad series) and more. |
7. Official Product Videos
HILUCKEY Solar Panel Power Bank Charger 25000mAh
This video provides an unboxing and overview of the Hiluckey Solar Charger, demonstrating its features, including the foldable solar panels and multiple charging ports. It highlights the product's design and functionality for outdoor use.
Solar Power Bank, Power when you need it!
A user review showcasing the solar power bank's features, including its multiple USB ports and integrated flashlight. The video emphasizes its utility for staying powered in various situations.
Powered by the sun - Ready for anything!
This video demonstrates the solar charging capabilities of the power bank, highlighting its four panels and ease of use for charging devices outdoors.
Never Run Out of Power! Ultimate 4-Panel Solar Bank
A review focusing on the robust nature and solar charging efficiency of the 4-panel power bank, emphasizing its reliability for continuous power.
How this solar battery charger holds up after 5 years!
This video offers a long-term review of the solar charger, discussing its durability and sustained performance over five years of use.
This solar charger is a must-have for Outdoor Fans!
A video highlighting the essential nature of this solar charger for outdoor enthusiasts, demonstrating its practical applications in various outdoor scenarios.
Solar charger that packs a punch
This video provides a concise overview of the solar charger's power and efficiency, showcasing its ability to keep devices charged effectively.
Pros and Cons of the 4 Panel Solar Charger!
An in-depth look at the advantages and disadvantages of the 4-panel solar charger, offering balanced insights for potential users.
8. Warranty and Support
The Hiluckey HI-S025 Solar Charger Power Bank comes with a 12-month warranty from the date of purchase. For warranty claims, technical support, or any product-related inquiries, please contact Hiluckey customer service.
Manufacturer: Yuwei Technology (Dongguan) Co., Ltd.
For further assistance, please refer to the official Hiluckey website or contact their support channels.