Introduction
This manual provides detailed instructions for the safe and efficient operation of your KROAK Portable Electric Compressor Cooler, available in 35L and 45L capacities. Designed for versatility, this cooler functions as both a refrigerator and a freezer, making it ideal for various outdoor activities, travel, and home use. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

Image: The KROAK portable cooler, showcasing its spacious interior filled with various beverages and fresh produce, highlighting its capacity and utility.
Setup and Initial Use
Before first use, it is crucial to prepare your KROAK cooler to ensure proper function and cooling efficiency.
- Unpacking: Carefully remove the cooler from its packaging. Inspect for any visible damage.
- Positioning: Place the cooler on a flat, stable surface. Ensure adequate ventilation around the unit.
- Initial Standby: After transport, allow the cooler to stand upright for at least 12 hours before plugging it in. This allows the refrigerant to settle, which is essential for compressor longevity and efficient cooling.
- Power Connection: Connect the appropriate power cable (AC for home, DC for vehicle) to the cooler and then to the power source.
- First Operation: Turn on the cooler and set your desired temperature. Allow it to reach the set temperature before loading items.
Operating Instructions
Your KROAK cooler offers advanced features for versatile cooling and freezing.
Dual-Zone Design
The cooler features a dual-zone design, allowing you to set different temperatures for two compartments simultaneously. The temperature range is from -20°C to 20°C. You can use one zone as a freezer and the other as a refrigerator. If the internal divider is removed, the entire unit can function as a single large refrigerator or freezer.

Image: An overhead view illustrating the dual-zone capability, showing separate temperature settings for freezing and refrigeration compartments.
MAX and ECO Modes
The cooler offers two operational modes:
- MAX Mode: Provides rapid cooling, capable of reaching 0°C within 15 minutes. Ideal for quickly chilling items.
- ECO Mode: An energy-efficient mode that consumes less than 0.18 kWh per day, making it environmentally friendly and suitable for extended use where power conservation is important.

Image: A visual representation of the cooler's rapid cooling capability, demonstrating how quickly it can reach desired low temperatures.

Image: A comparison highlighting the energy efficiency of the KROAK cooler's ECO mode against typical consumption rates of other coolers.
Battery Protection Levels
To prevent your vehicle's battery from discharging, the cooler features three battery protection levels: "Low," "Medium," and "High." Adjust this setting based on your vehicle's battery condition and usage to ensure sufficient power for starting your vehicle.
Power Supply Methods
The KROAK cooler supports multiple power input options for various scenarios:
- AC 100-240V: For home or standard wall outlet use.
- DC 12/24V: For use in cars, trucks, or RVs.
- Solar Panel / Power Station: Compatible with external solar panels and portable power stations for off-grid use (accessories sold separately).

Image: A depiction of the cooler's versatility in power sources, including solar, standard AC, and vehicle DC inputs.
Additional Features
- LED Lights: Internal LED lighting for convenient use in low-light conditions or at night.
- Non-slip Handles and Wheels: Designed for easy transport, especially over uneven terrain.
- Integrated Cutting Board and Cup Holder: Thoughtful additions for enhanced utility during outdoor activities.
- Low Noise Operation: Operates at approximately 45 dB, ensuring a quiet environment.

Image: A person demonstrating the ease of portability of the KROAK cooler, highlighting its non-slip handle and durable wheels.
Maintenance
Regular maintenance ensures the longevity and efficient operation of your KROAK cooler.
- Cleaning: Disconnect power before cleaning. Use a soft cloth dampened with mild detergent and water to clean the interior and exterior surfaces. Do not use abrasive cleaners or immerse the unit in water.
- Draining: After use, especially when storing, ensure the cooler is completely dry to prevent mold and odors.
- Storage: Store the cooler in a dry, well-ventilated area when not in use. Leave the lid slightly ajar to allow air circulation and prevent odors.
- Ventilation: Periodically check that the ventilation grilles are clear of dust and debris to ensure proper airflow for the compressor.
Troubleshooting
If you encounter issues with your KROAK cooler, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Cooler not turning on | No power supply; loose connection; vehicle battery low. | Check power cable connection; ensure power source is active; check vehicle battery level and protection setting. |
| Insufficient cooling | Lid not closed properly; overloaded; poor ventilation; ambient temperature too high. | Ensure lid is sealed; do not overfill; clear ventilation grilles; operate in a cooler environment if possible. |
| Unusual noise | Unit not level; fan obstruction. | Place on a flat surface; check for any obstructions around the fan. |
If the problem persists after attempting these solutions, please contact KROAK customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | a744a18e-d9dd-4681-a41f-3044151b6fa8 |
| Capacity | 45 Liters (also available in 35L) |
| Cooling Method | Compressor |
| Temperature Range | -20°C to 20°C |
| Voltage (AC) | 100-240V |
| Voltage (DC) | 12V/24V |
| ECO Mode Consumption | Less than 0.18 kWh/day |
| Noise Level | Approx. 45 dB |
| Product Dimensions | 71 x 44.5 x 52.5 cm |
| Weight | 16 kg |
Warranty and Support
KROAK products are manufactured to high quality standards. For information regarding warranty coverage, please refer to the warranty card included with your purchase or visit the official KROAK website. For technical support, spare parts, or any inquiries not covered in this manual, please contact KROAK customer service through their official channels.
Manufacturer: KROAK



