Introduction
Thank you for choosing the SideKing Battery Powered Backpack Sprayer. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new sprayer. Please read this manual thoroughly before initial use and retain it for future reference.

Image: The SideKing 3.2 Gallon Battery Powered Backpack Sprayer shown with its main components and included accessories, including the battery, charger, and various nozzles.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the sprayer:
- Read all instructions: Familiarize yourself with the sprayer's operation before use.
- Wear protective gear: Always wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and a mask when handling chemicals.
- Use approved liquids only: Do not use flammable, corrosive, or highly viscous liquids. Refer to chemical manufacturer's instructions for compatibility.
- Keep clear of children and pets: Store the sprayer and chemicals out of reach of children and animals.
- Avoid electrical hazards: Do not immerse the sprayer in water. Keep the battery and charger dry.
- Proper ventilation: Use in well-ventilated areas, especially when spraying chemicals.
- Battery safety: Use only the specified 18V battery and charger. Do not short-circuit, incinerate, or disassemble the battery.
- Pressure release: Always release pressure from the tank before opening or performing maintenance.
Package Contents
Verify that all items are present in the package:
- SideKing Backpack Sprayer (3.2 Gallon / 12L Tank)
- Stainless Steel Telescopic Spray Wand
- 5 Nozzles (Windproof, Double Head, Single Head, Fan-shaped, Shower Head)
- 18V 2.0Ah Lithium Battery
- Battery Charger
- Padded Shoulder Straps
- User Manual
Setup
1. Charging the Battery
- Connect the charger to a standard power outlet.
- Insert the 18V 2.0Ah lithium battery into the charger.
- Allow approximately 2.5 hours for a full charge. The charger indicator light will change when charging is complete.
- Once charged, remove the battery from the charger.
2. Installing the Battery
- Locate the battery compartment on the sprayer.
- Slide the charged battery into the compartment until it clicks securely into place.
3. Assembling the Spray Wand and Nozzles
- Connect the spray wand to the hose from the sprayer. Ensure a tight connection to prevent leaks.
- Select the desired nozzle from the included set. The secondary lid on the sprayer can be used for nozzle storage.
- Attach the chosen nozzle to the end of the spray wand by twisting it securely.

Image: Close-up views of the sprayer's features, including the secondary lid for nozzle storage, the enlarged water inlet with a filter screen, the translucent tank with gallon markers, and the digital voltage display.
4. Filling the Tank
- Ensure the sprayer is on a stable, level surface.
- Unscrew the main lid of the tank.
- Carefully pour the desired liquid into the tank, observing the gallon markings for accurate measurement. Do not overfill. The enlarged water inlet includes a filter screen to prevent debris from entering the tank.
- Securely fasten the main lid after filling.
5. Adjusting Shoulder Straps
- Place the backpack sprayer on your back.
- Adjust the padded shoulder straps and lumbar cushion for a comfortable and secure fit. This helps distribute weight and reduce fatigue during extended use.

Image: A person wearing the SideKing backpack sprayer, highlighting the comfortable, adjustable, and thickened shoulder straps and the lumbar cushion designed for extra support and reduced fatigue.
Operating Instructions
1. Powering On and Off
- To turn on the sprayer, locate the power switch and flip it to the 'ON' position. The digital voltage display will illuminate, showing the current battery level.
- To turn off, flip the power switch to the 'OFF' position.
2. Adjusting Pressure
- The sprayer features an adjustable pressure knob. Rotate the knob to increase or decrease the spray pressure, ranging from 0 to 80 PSI.
- Adjust the pressure according to the task and the type of nozzle being used.

Image: The sprayer in operation, illustrating the maximum 80 PSI spray pressure and the adjustable pressure knob. Below, five different nozzles are displayed: Windproof, Double Head, Single Head, Fan-shaped, and Shower Head, each producing a distinct spray pattern.
3. Spraying
- Once the sprayer is on and pressure is set, press the trigger on the spray wand to begin spraying.
- Release the trigger to stop spraying.
- Maintain a consistent distance and motion for even application. The telescopic wand allows for reaching higher areas.

Image: A person using the SideKing backpack sprayer in a garden, demonstrating its electric operation which eliminates the need for manual pumping. The sprayer is shown actively dispensing liquid.

Image: A user operating the SideKing backpack sprayer in a garden setting. The image emphasizes the sprayer's compatibility with 18V batteries and its long battery life, capable of spraying up to 15 tanks on a single charge with the included 2.0Ah battery.
4. Battery Discharge Protection
- The sprayer is equipped with an automatic shut-off feature that activates when the battery voltage drops below 14V. This protects the battery and extends its lifespan.
- When this occurs, recharge the battery.
Maintenance
1. Cleaning the Sprayer
- After each use, empty any remaining liquid from the tank.
- Rinse the tank thoroughly with clean water.
- Fill the tank with clean water and spray for a few minutes to flush the pump, hose, and wand.
- Clean the nozzles and filter screen to prevent clogging.
- Wipe down the exterior of the sprayer with a damp cloth.
2. Battery Care and Storage
- Store the battery in a cool, dry place away from direct sunlight and extreme temperatures.
- For long-term storage, charge the battery to approximately 50% capacity.
- Do not store the battery in the sprayer for extended periods.
3. General Storage
- Store the cleaned sprayer in a dry, protected area, away from freezing temperatures.
- Ensure the tank is empty and dry before storage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Sprayer does not turn on | Battery not charged or improperly installed; Power switch off | Charge battery fully; Ensure battery is securely installed; Turn power switch to 'ON' |
| No spray or weak spray | Clogged nozzle; Low battery; Air in system; Tank empty | Clean nozzle; Recharge battery; Prime pump by spraying water; Refill tank |
| Leaking from connections | Loose connections; Damaged O-rings/seals | Tighten all connections; Inspect and replace damaged O-rings/seals |
| Sprayer stops unexpectedly | Battery discharge protection activated (voltage below 14V) | Recharge the battery |
Specifications
| Feature | Specification |
|---|---|
| Brand | SideKing |
| Tank Volume | 3.2 Gallons (12 Liters) |
| Max Pressure | 80 PSI |
| Adjustable Pressure | 0-80 PSI |
| Battery Type | 18V Lithium-ion |
| Battery Capacity | 2.0Ah |
| Charging Time | Approx. 2.5 hours |
| Continuous Spraying Time | Up to 2 hours per charge |
| Spray Range | Over 25 feet |
| Wand Material | Stainless Steel |
| Product Dimensions (Sprayer Body) | 13.78in (W) x 16.53in (H) |
| Wand Length (Extended) | 42.91in |

Image: A visual representation of the SideKing backpack sprayer and its telescopic wand, detailing key dimensions such as the sprayer body width (13.78in), height (16.53in), and the extended wand length (42.91in).
Warranty and Support
The SideKing Battery Powered Backpack Sprayer comes with a worry-free one-year warranty. For any questions, technical assistance, or warranty claims, please contact our customer support team. We offer round-the-clock online support to ensure your satisfaction.
Please refer to your purchase documentation for specific contact details or visit the official SideKing website for support information.





