Introduction
This manual provides essential information for the safe and efficient use of your HW 9V 3600mWh rechargeable Li-ion batteries and the accompanying 4-bay charger. These batteries are designed for long-lasting performance and offer a cost-effective, environmentally friendly alternative to disposable batteries for a wide range of electronic devices.
What's in the Box
- 4 x HW 9V 3600mWh Rechargeable Li-ion Batteries
- 1 x 4-Bay Battery Charger
- 1 x USB Charging Cable
- 1 x User Manual

Setup and Charging Instructions
Follow these steps to set up your charger and charge your HW 9V batteries:
- Connect the Charger: Plug the provided USB charging cable into the charger and connect the other end to a compatible USB power source (e.g., computer, wall adapter, power bank, or in-car charger).
- Insert Batteries: Carefully insert the 9V rechargeable Li-ion batteries into the charging bays. Ensure correct polarity (positive to positive, negative to negative). The charger is designed to accommodate up to four batteries simultaneously.
- Monitor Charging Status: The indicator lights on the charger will illuminate red to signify that the batteries are actively charging. Once a battery is fully charged, its corresponding indicator light will turn green.
- Charging Time: The charger is designed for quick charging, capable of fully recharging four batteries in approximately 2.5 hours.
- Automatic Cut-off: The charger features an automatic power-off function once batteries are fully charged to prevent overcharging and ensure safety.


Video: Unboxing and Charging Demonstration
Video Description: This video demonstrates the unboxing of the HW 9V rechargeable batteries and charger, followed by a step-by-step guide on how to properly insert the batteries into the charger and observe the charging indicator lights.
Operating Instructions
The HW 9V rechargeable Li-ion batteries are designed for wide compatibility with various devices that require 9V power. These include, but are not limited to:
- Smoke Detectors/Alarms
- Medical Devices
- Guitar Pedals
- Toys
- Household Electronics (e.g., multimeters, microphones, shavers)
To use the batteries, simply insert them into your compatible device, ensuring correct polarity. The long cycle life of over 1000 charges makes them a reliable choice for frequent use.


Video: Battery Replacement in Electronic Door Lock
Video Description: This video demonstrates the process of replacing a 9V battery in an electronic entry door lock with an HW rechargeable 9V battery, showcasing its practical application.
Video: Using HW 9V Batteries in a Stud Finder
Video Description: This video shows the unboxing of the HW 9V rechargeable batteries and charger, followed by a demonstration of inserting the batteries into a stud finder and using the device.
Video: Replacing Battery in Garage Door Opener Keypad
Video Description: This video demonstrates the replacement of a 9V battery in a garage door opener keypad with an HW rechargeable 9V battery, highlighting its suitability for such applications.
Maintenance
- Storage: Store batteries and charger in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Wipe the charger and batteries with a dry, soft cloth as needed. Do not use liquid cleaners.
- Cycle Life: Each battery supports over 1000 charge cycles, providing extended use and reducing waste.

Troubleshooting
- Batteries not charging:
- Ensure the USB cable is securely connected to both the charger and the power source.
- Verify the power source is active and providing sufficient power.
- Check that batteries are inserted correctly into the bays with proper polarity.
- Device not powering on with charged battery:
- Confirm the battery is fully charged (green indicator light on the charger).
- Ensure the battery is correctly inserted into the device with proper polarity.
- Check the device's battery compartment for any obstructions or corrosion.
- Charger indicator lights not working:
- Ensure the charger is connected to a working power source.
- If the issue persists, contact customer support.
Specifications
| Feature | Specification |
|---|---|
| Brand | HW |
| Model Number | CX02 |
| Battery Type | Li-ion (Lithium-ion) |
| Battery Capacity | 3600mWh |
| Output Voltage | 9 Volts |
| Charging Time | 2.5 Hours (for 4 batteries) |
| Amperage | 400 Milliamps |
| Item Weight | 4.6 ounces (130 Grams) |
| Package Dimensions | 4.69 x 2.91 x 1.54 inches |
| Charge Cycles | Over 1000 |
Safety Information
Your HW 9V rechargeable batteries and charger are equipped with multiple safety features to ensure reliable operation. Please observe the following precautions:
- Overcharge Protection: Built-in safeguards prevent batteries from being overcharged.
- Over-Discharge Protection: Protects batteries from being fully depleted, extending their lifespan.
- Over-Voltage Protection: Regulates voltage to prevent damage from excessive input.
- Over-Current Protection: Guards against excessive current flow.
- Short Circuit Protection: Prevents damage in case of a short circuit.
- Over-Temperature Protection: Monitors and regulates temperature to prevent overheating.
- Use Only Provided Charger: Always use the dedicated HW 4-bay charger for these batteries. Using incompatible chargers may pose safety risks.
- Do Not Disassemble: Do not attempt to disassemble, crush, puncture, or modify the batteries or charger.
- Avoid Extreme Conditions: Do not expose batteries or charger to water, fire, or extreme temperatures.
- Keep Away from Children: Store batteries and charger out of reach of children.


Warranty and Support
Specific warranty details are not provided in the product information. For any questions, technical support, or warranty inquiries, please contact the manufacturer, TIGER HEAD HI-WATT BATTERY (HK) CO., LTD, or refer to the contact information provided with your purchase.





