Introduction
This manual provides instructions for the safe and efficient use of the Pentax K-BC109 Battery Charger Kit. This charger is specifically designed for use with Pentax D-LI109 rechargeable lithium-ion batteries, ensuring optimal performance and compatibility with your Pentax camera equipment.
Please read this manual thoroughly before using the charger to ensure proper operation and to prevent damage to the product or connected devices.
Setup
1. Unpacking
Carefully remove all components from the packaging. Ensure the following items are present:
- Pentax K-BC109 Battery Charger
- AC Power Cord
2. Connecting the Charger to Power
Connect the supplied AC power cord to the power input port on the back of the K-BC109 charger. Plug the other end of the AC power cord into a standard electrical outlet (100-240V AC, 50/60Hz).

Image: Rear view of the Pentax K-BC109 charger, highlighting the power input port for the AC cord connection.
3. Inserting the Battery
Align the Pentax D-LI109 battery with the battery slot on the charger. Gently slide the battery into the slot until it clicks securely into place. Ensure the battery contacts align with the charger's pins.

Image: Top view of the Pentax K-BC109 charger, showing the designated slot for inserting the D-LI109 battery.
Operating Instructions
1. Charging Process
Once the battery is correctly inserted and the charger is connected to power, the integrated LED indicator on the charger will illuminate to show the charging status.
- Charging: The LED indicator will typically show a specific color or pattern (e.g., orange, blinking) to indicate that the battery is actively charging.
- Fully Charged: When the battery is fully charged, the LED indicator will change its state (e.g., turn green, stop blinking, or turn off) to signal completion.
Charging time may vary depending on the battery's remaining capacity and environmental conditions. Refer to your D-LI109 battery specifications for typical charging durations.
2. Removing the Battery
Once charging is complete, disconnect the charger from the power outlet. Gently press the release tab (if present) or pull the battery out of the charging slot.
3. Safety Features
The Pentax K-BC109 charger incorporates built-in safety mechanisms to protect against common electrical issues:
- Overcharging Protection: Prevents damage to the battery by stopping the charging process once full capacity is reached.
- Overheating Protection: Monitors the charger's temperature and adjusts or halts charging if it becomes too hot.
- Short Circuit Protection: Safeguards against electrical shorts, protecting both the charger and the battery.
Maintenance
1. Cleaning
Ensure the charger is disconnected from the power source before cleaning. Use a soft, dry cloth to wipe the exterior of the charger. Do not use liquid cleaners, solvents, or abrasive materials, as these can damage the unit.
Keep the charging contacts clean and free of dust or debris. Use a dry cotton swab if necessary to gently clean the contacts.
2. Storage
When not in use, store the charger in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it out of reach of children and pets.
Troubleshooting
If you encounter issues with your Pentax K-BC109 Battery Charger, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| LED indicator does not light up. | No power supply; improperly connected power cord; faulty outlet. | Ensure the power cord is securely connected to both the charger and the electrical outlet. Try a different outlet. |
| Battery is not charging. | Battery not inserted correctly; dirty battery contacts; battery is defective. | Re-insert the battery, ensuring proper alignment. Clean battery and charger contacts. If the issue persists, the battery may be faulty. |
| Charger feels excessively hot. | Poor ventilation; environmental temperature too high; internal fault. | Ensure the charger is in a well-ventilated area. Discontinue use if overheating persists and contact support. |
If the problem persists after attempting these solutions, please contact Pentax customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Pentax |
| Model Number | S0039033 (K-BC109) |
| Compatible Battery | Pentax D-LI109 |
| Input Voltage | 100-240 Volts AC, 50/60Hz |
| Output Voltage | 4.2 Volts |
| Number of Ports | 1 |
| Connector Type | Pentax proprietary connector |
| Color | Black |
| Item Weight | 500 Grams |
| UPC | 027075182073 |
| ASIN | B01I5T49MC |
Warranty Information
The Pentax K-BC109 Battery Charger Kit is covered by a manufacturer's limited warranty. Please refer to the warranty card included with your product or visit the official Pentax website for detailed terms and conditions regarding warranty coverage, duration, and claims procedures.
Keep your proof of purchase for warranty service.
Customer Support
For technical assistance, troubleshooting not covered in this manual, or warranty inquiries, please contact Pentax customer support.
- Online Support: Visit the official Pentax website for FAQs, support resources, and contact forms.
- Telephone Support: Refer to your product packaging or the Pentax website for regional contact numbers.
When contacting support, please have your product model number (K-BC109) and proof of purchase readily available.