Introduction
Welcome to the user manual for the Generico KO838 20V 1.5Ah Lithium-Ion Battery. This manual provides essential information for the safe and efficient use of your battery, compatible with Kombo KO837 drills and KO838 series tools. Please read this manual thoroughly before first use and keep it for future reference.
Safety Information
Your safety is paramount. Always follow these safety guidelines when handling, charging, or using the battery.
- Do not expose the battery to water or moisture.
- Do not store or use the battery in temperatures exceeding 50°C (122°F) or below -10°C (14°F).
- Do not short-circuit the battery terminals.
- Do not attempt to open, disassemble, or modify the battery.
- Use only chargers specified by the manufacturer for this battery.
- Keep the battery away from children and pets.
- Dispose of batteries responsibly according to local regulations.
- If the battery is damaged, leaking, or excessively hot, discontinue use immediately.
For detailed safety information, refer to the official safety document: Safety Information (PDF).
Product Overview
The Generico KO838 is a 20V 1.5Ah (1500mAh) Lithium-Ion battery designed for reliable power delivery to compatible Kombo power tools.
Key Features:
- Capacity: 1.5Ah (1500mAh) for extended use.
- Voltage: 20V nominal.
- Technology: Lithium-Ion for reduced self-discharge and no memory effect.
- Compatibility: Specifically designed for Kombo KO837 drills and KO838 series tools.
- Safety: TUV certified for quality and safety.
- Quick Release: Secure slide-in attachment with an immediate release button.
Components:
The battery pack consists of the main battery unit with terminals and a release button.

Image: Front view of the Generico KO838 20V 1.5Ah Lithium-Ion battery, showing its compact design and red release button.
Setup
Initial Charging:
Before first use, fully charge the battery.
- Ensure the battery is clean and dry.
- Connect the appropriate Kombo 20V charger (not included) to a power outlet.
- Slide the KO838 battery onto the charger until it clicks into place.
- Allow the battery to charge until the charger's indicator light signals a full charge (refer to your charger's manual for specific indicators).
- Once fully charged, disconnect the battery from the charger.
Installing the Battery:
To install the battery into a compatible Kombo tool (e.g., KO837 drill):
- Align the battery's slide-in mechanism with the tool's battery port.
- Slide the battery firmly into the tool until it clicks securely into place. Ensure it is fully seated and does not wobble.

Image: Side view of the Generico KO838 battery, illustrating the slide-in mechanism.
Operating Instructions
Using the Battery with Tools:
Once installed, the battery powers the tool. Operate the tool according to its specific instruction manual.
Removing the Battery:
- Ensure the tool is turned off and any moving parts have stopped.
- Press the battery release button (usually red or black, located on the battery or tool).
- Slide the battery out of the tool.

Image: Top view of the Generico KO838 battery, showing the battery terminals and release button.
Maintenance
Cleaning:
- Keep the battery and its terminals clean and free from dust, dirt, and debris.
- Use a dry, soft cloth to wipe the battery. Do not use water or cleaning solvents.
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 50-70% capacity. Avoid storing fully charged or completely discharged batteries for extended periods.
- Store the battery away from metallic objects that could short-circuit the terminals.
Disposal:
- Do not dispose of the battery in household waste.
- Recycle the battery at an authorized recycling center or return it to your retailer for proper disposal. Lithium-ion batteries contain materials that require special handling.
Troubleshooting
If you encounter issues with your battery, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not plugged in; faulty charger; battery too hot/cold; damaged battery. | Check charger connection; try another charger; allow battery to reach room temperature; inspect battery for damage. |
| Tool not powering on | Battery not fully charged; battery not properly installed; faulty tool. | Charge battery fully; ensure battery is clicked into place; test with another battery if available; consult tool manual. |
| Reduced run time | Battery aging; extreme operating conditions; partial charging. | Battery capacity naturally decreases over time; avoid extreme temperatures; ensure full charges. |
If problems persist, contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | KO838 |
| Battery Type | Lithium-Ion |
| Voltage | 20V |
| Capacity | 1.5Ah (1500mAh) |
| Weight | 800 Grams |
| Compatibility | Kombo KO837 Drill, Kombo KO838 Series Tools |
| Certifications | TUV |
Warranty and Support
This product is manufactured by Generico. For warranty information and customer support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for any warranty claims.
For further assistance, please visit the product page on Amazon: Product Link.
