1. Introduction
Thank you for choosing the KastKing Li3 Ice Fishing Aerator Pump. This manual provides essential information for the proper setup, operation, and maintenance of your aerator. Please read it thoroughly before use to ensure optimal performance and longevity of the product.

Figure 1: KastKing Li3 Aerator Pump attached to a bait bucket.
2. Product Overview and Features
The KastKing Li3 Aerator Pump is designed to keep your live bait fresh and active with its advanced features and portable design.
- Rechargeable Lithium-Ion Battery: Equipped with a 2500mAH large-capacity lithium-ion battery for reliable power.
- Real-Time Runtime Display: Calculates and displays the remaining runtime based on battery charge and airflow setting.
- Convenient Hanging Option: Features a stow-away flip-up hook for easy attachment to bait buckets or fishing gear.
- Multiple Airflow Settings: Four distinct settings to match your needs:
- Intermittent (1.2 L/min for up to 51 hours)
- Low (0.6 L/min for 44 hours)
- Medium (0.8 L/min for 33 hours)
- High (1.2 L/min for 29 hours)
- Comprehensive Package: Includes the aerator pump, 110v adaptor, vehicle plug, USB charging cord, XL air stone, and a kink-resistant hose.
Figure 2: All components included with the KastKing Li3 Aerator Pump.
Video 1: Product introduction and demonstration of the aerator pump's functionality.
3. Setup
3.1 Unpacking and Initial Inspection
Carefully remove all components from the packaging. Verify that all items listed in the "Comprehensive Package" feature are present and undamaged. If any items are missing or damaged, please contact customer support.
3.2 Charging the Battery
Before first use, fully charge the aerator pump's internal lithium-ion battery. Use the provided 110v adaptor, vehicle plug, or USB charging cord with a compatible power source.
3.3 Connecting Air Stone and Hose
- Connect one end of the kink-resistant hose to the air outlet on the aerator pump.
- Attach the XL air stone to the other end of the hose. Ensure a snug fit to prevent air leakage.
Figure 3: XL Air Stone for efficient oxygen distribution.
3.4 Attaching to a Bait Bucket
The Li3 Aerator Pump features a stow-away flip-up hook for convenient attachment. Extend the hook and securely fasten the aerator to the rim of your bait bucket. Ensure the air stone is submerged in the water within the bucket.
Figure 4: Aerator pump attached to a 5-gallon bait bucket.
Figure 5: Stow-away flip-up bucket hook detail.
4. Operating Instructions
4.1 Powering On/Off and Airflow Settings
The aerator pump is operated via a single button. Press the button to cycle through the four airflow settings and to power the unit on or off.
- Press once: Turns the unit on to the last used setting.
- Subsequent presses: Cycle through High, Medium, Low, and Intermittent settings.
- Press and hold: Turns the unit off.
4.2 Real-Time Runtime Display
The integrated display provides real-time information on the remaining battery life and selected airflow setting. The display shows the estimated hours of runtime remaining. A power on LED indicator blinks when the battery is below 20%.
Figure 6: Real-time runtime and battery level display.
Figure 7: Multiple airflow settings and their approximate runtimes.
5. Maintenance
5.1 Cleaning the Air Stone and Hose
Regularly inspect the air stone and hose for blockages or debris. Clean the air stone by gently scrubbing it under running water to remove any buildup that might reduce airflow. Rinse the hose if necessary.
5.2 Battery Care
To prolong battery life, avoid fully discharging the battery frequently. Recharge the unit after each use or when the battery level is low. Store the aerator in a cool, dry place when not in use, and ensure it is charged periodically if stored for extended periods.
5.3 General Cleaning
Wipe the exterior of the aerator pump with a damp cloth to remove dirt or residue. Do not submerge the main unit in water.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Aerator does not turn on. | Battery is discharged. | Charge the battery using the provided adaptors. |
| Low or no airflow. | Air stone or hose is clogged. | Clean the air stone and check the hose for kinks or blockages. |
| Short runtime. | Battery not fully charged or aging battery. | Ensure the battery is fully charged. If the issue persists, the battery may need replacement (contact customer support). |
| Unit is noisy. | Vibration against hard surface. | Ensure the unit is securely attached and not vibrating against the bucket. The unit has rubber feet to minimize this. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | Li3 |
| Product Dimensions | 11.94 x 7.11 x 5.08 cm |
| Item Weight | 381 g |
| Material | Acrylonitrile Butadiene Styrene |
| Power Source | Battery Powered |
| Battery Type | Rechargeable 2500mAH Lithium-Ion |
| Airflow Settings & Runtime |
|
| Included Components | Aerator, 110v Charger, 12v Vehicle Charger, Air Stone, Charging Cord, No-kink Hose |
8. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official KastKing website. Keep your proof of purchase for any warranty claims.