1. Introduction
The Karcher OC Handy Compact Plus CB is a portable, cordless high-pressure washer designed for quick and convenient cleaning tasks. Its compact size and integrated battery allow for use without a direct power or water connection, making it ideal for mobile applications. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your device.

The Karcher OC Handy Compact Plus CB is designed to be palm-sized for easy portability.
2. Safety Information
Always read and understand all safety warnings and instructions before using the device. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
- Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.
- Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
- Avoid unintentional starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the tool.
- Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
- Wear appropriate personal protective equipment, including eye protection, when operating the high-pressure washer.
- Never direct the water jet at people, animals, electrical equipment, or the device itself.
- Ensure the water source is clean and free of debris to prevent damage to the pump.
3. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.
- Karcher OC Handy Compact Plus CB Main Unit
- 4-in-1 Nozzle
- 5m Self-Suction Hose with Hose Clip
- Pet Bottle Holder
- Detergent Nozzle
- USB Charging Cable (Type-C)
- Foldable Bucket
- Instruction Manual

Included components: Main unit, 4-in-1 nozzle, 5m self-suction hose, pet bottle holder, detergent nozzle, USB-C charging cable, and foldable bucket.
4. Setup
4.1 Charging the Battery
The device is equipped with an internal rechargeable battery. Before first use, fully charge the battery.
- Connect the provided USB-C charging cable to the charging port on the device.
- Connect the other end of the USB-C cable to a compatible USB power adapter (not included) with a minimum output of 10W.
- The charging indicator light will show the charging status. Allow the device to charge until the indicator shows a full charge.

The device supports USB Type-C charging, allowing for flexible power options.
4.2 Connecting the Water Supply
The OC Handy Compact Plus CB does not require a direct tap connection. It can draw water from various sources.
- Using the Self-Suction Hose: Connect the 5m self-suction hose to the water inlet on the device. Place the other end of the hose into a bucket or container filled with clean water. Secure the hose with the provided hose clip to prevent it from coming out of the water.
- Using a Pet Bottle: Attach the pet bottle holder to the water inlet. Screw a standard pet bottle filled with clean water onto the holder.
Important Note: This product cannot be connected to a standard garden hose or hose reel due to its unique connection port design.
5. Operating Instructions
5.1 Attaching Nozzles
The device comes with a 4-in-1 nozzle and a detergent nozzle.
- To attach a nozzle, align it with the outlet on the device and push firmly until it clicks into place.
- To remove, press the release button (if present) and pull the nozzle off.
5.2 Selecting Spray Patterns (4-in-1 Nozzle)
The 4-in-1 nozzle allows you to select different spray patterns by rotating the nozzle head:
- Standard Wide Spray: For general cleaning and rinsing large areas.
- Point Jet: For concentrated cleaning of stubborn dirt.
- Angled Spray: For reaching difficult angles or under objects.
- Shower Spray: For gentle rinsing or pre-wetting surfaces.

The 4-in-1 nozzle offers versatile spray patterns for various cleaning needs, including foam cleaning with the detergent nozzle.
5.3 Foam Cleaning (Detergent Nozzle)
For foam cleaning, attach the detergent nozzle and fill its reservoir with an appropriate cleaning solution. The device will mix the detergent with water to create foam.
5.4 Starting and Stopping
- Ensure the water supply is connected and the battery is charged.
- Point the nozzle away from yourself and others.
- Press the power button to turn on the device.
- Press the trigger to start the water flow. Release the trigger to stop.
- After use, turn off the device by pressing the power button.
5.5 Applications
The Karcher OC Handy Compact Plus CB is suitable for a variety of light to medium cleaning tasks:
- Cleaning dirt from sports equipment (e.g., muddy shoes, bicycles).
- Rinsing outdoor gear after camping or fishing.
- Washing cars, motorcycles, or bicycles.
- Cleaning verandas, balconies, and outdoor furniture.
- Light cleaning of bathroom surfaces.

The device is versatile for cleaning verandas, bathrooms, cars, and removing mud from items.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your device.
- Cleaning the Nozzles: After each use, rinse the nozzles with clean water to remove any debris. Use a small pin or needle to clear any blockages in the nozzle openings.
- Draining Water: After use, disconnect the water supply and run the device briefly to drain any remaining water from the pump and hose. This prevents freezing in cold weather and bacterial growth.
- Battery Care: Store the device with a partially charged battery (around 50%) if not used for extended periods. Avoid fully discharging the battery before recharging.
- Storage: Store the device and accessories in a clean, dry, and frost-free location. The foldable bucket can be used to store the main unit and accessories compactly.

The compact design allows for easy storage in small spaces.
7. Troubleshooting
If you encounter issues with your Karcher OC Handy Compact Plus CB, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is discharged. | Charge the battery fully. |
| No water flow or weak pressure. | Water source empty or hose kinked. Nozzle blocked. | Refill water source, straighten hose. Clean nozzle. |
| Water leaks from connections. | Connections not secure or O-rings damaged. | Ensure connections are tight. Check and replace O-rings if necessary. |
| Short operating time. | Battery not fully charged or aging battery. | Ensure full charge. Consider battery replacement if performance degrades significantly over time. |
8. Specifications
| Feature | Specification |
|---|---|
| Brand | KÄRCHER |
| Model Number | 1.328-124.0 |
| Power Source | Battery-powered |
| Color | Yellow |
| Product Weight | 0.78 kg |
| Hose Length | 5 meters |
| Item Dimensions (L x W x H) | 7.1 x 18.6 x 25.4 cm |
| Product Type | Mobile High-Pressure Washer |
| Country of Origin | China |
9. Warranty and Support
This Karcher product comes with a 1-year warranty from the date of purchase, covering defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For technical support, service, or warranty inquiries, please contact Karcher customer service through their official website or the contact information provided in your product packaging.
For more information and additional resources, visit the official Karcher website: www.karcher.com