Introduction
This manual provides essential information for the proper use, maintenance, and troubleshooting of your KOAMTAC KDC20/100/200 190mAh replacement battery. This battery is designed to provide reliable power for your KDC20, KDC100, and KDC200 series devices. For optimal performance, it is recommended to replace your KDC battery annually.
Safety Information
Please read and understand all safety precautions before using the battery. Improper handling can lead to damage, injury, or fire.
- Do not disassemble, crush, puncture, or short-circuit the battery.
- Do not expose the battery to high temperatures (above 60°C / 140°F) or direct sunlight.
- Do not dispose of the battery in fire or water.
- Keep the battery away from children.
- If the battery leaks, avoid contact with skin and eyes. If contact occurs, rinse immediately with water and seek medical attention.
- Use only the specified charger for your KDC device to charge this battery.

Image: The KDC20/100/200 190mAh battery installed in a compatible device. Note the caution label on the device indicating "LASER RADIATION - DO NOT STARE INTO BEAM" for devices with laser components. This image highlights the proper placement of the battery within the device's battery compartment.
Setup: Battery Installation
Follow these steps to properly install the 190mAh battery into your KDC20, KDC100, or KDC200 series device.
- Ensure your KDC device is powered off before beginning the installation.
- Locate the battery compartment on the back of your KDC device.
- If an old battery is present, carefully remove it.
- Align the new 190mAh battery with the battery compartment, ensuring the connector pins on the battery match the receptacle in the device.
- Gently push the battery into place until it is securely seated and the connector is fully engaged.
- Close the battery compartment cover, if applicable, ensuring it latches securely.

Image: The KOAMTAC KDC20/100/200 190mAh replacement battery. This image shows the compact blue battery pack with its small white connector and red and black wires, ready for installation into a compatible KDC device.
Operating: Charging and Usage
Once installed, the battery will power your KDC device. Follow these guidelines for charging and optimal usage.
Charging the Battery
- Connect your KDC device to its original charger or a compatible charging cradle.
- The device's indicator light will typically show charging status (refer to your KDC device's specific manual for details).
- Allow the battery to fully charge before initial use for best performance.
- Avoid overcharging the battery by disconnecting the charger once it is full.
Battery Usage
- The 190mAh capacity provides sufficient power for typical operation of KDC20/100/200 devices.
- Battery life will vary depending on device usage, settings, and environmental conditions.
- For prolonged storage, charge the battery to approximately 50% and store it in a cool, dry place.
Maintenance
Proper maintenance can extend the lifespan of your battery.
- Keep the battery contacts clean and free of dust or debris. Use a dry, soft cloth if cleaning is necessary.
- Avoid extreme temperatures. Do not expose the battery to very hot or very cold environments.
- If the battery is not used for an extended period, charge it periodically (every 3-6 months) to prevent deep discharge.
- Replace the battery if you notice a significant decrease in operating time or if it shows signs of swelling or damage.
Troubleshooting
If you encounter issues with your battery, consider the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on after battery installation. | Battery not properly seated or not charged. | Ensure battery is fully inserted. Charge the device for at least 30 minutes. |
| Battery drains quickly. | Aging battery, heavy device usage, or environmental factors. | Reduce device usage intensity. Consider replacing the battery if it's old (recommended annually). Ensure device firmware is up to date. |
| Battery not charging. | Faulty charger/cable, dirty contacts, or damaged battery. | Try a different charger/cable. Clean battery and device contacts. If problem persists, the battery may need replacement. |
If troubleshooting steps do not resolve the issue, please contact KOAMTAC customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 674500 |
| Battery Capacity | 190 mAh |
| Voltage | 3.7 Volts |
| Battery Cell Composition | Sealed Lead Acid |
| Product Dimensions | 2 x 2 x 1 inches |
| Item Weight | 8 ounces |
| Manufacturer | KOAMTAC |
Warranty Information
KOAMTAC provides a limited warranty for its products. For specific warranty terms and conditions applicable to the KDC20/100/200 190mAh battery, please refer to the official KOAMTAC website or contact their customer support directly. Keep your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or inquiries regarding your KOAMTAC KDC20/100/200 190mAh battery, please contact KOAMTAC customer support through their official channels.
- Website: www.koamtac.com
- Contact Information: Refer to the "Contact Us" section on the official KOAMTAC website for phone numbers, email addresses, and support hours.





