Hakeeta Lii-202 USB Battery Charger User Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation of your Hakeeta Lii-202 USB Battery Charger. Please read this manual thoroughly before using the device to ensure proper function and to prevent damage or injury.

Figure 1: Overview of the Hakeeta Lii-202 USB Battery Charger.

2. Safety Information

Observe the following safety precautions to prevent electric shock, fire, or damage to the charger or batteries:

• Do not attempt to charge damaged, leaking, or non-rechargeable batteries.
• Ensure correct battery polarity (+/-) when inserting batteries into the charger slots.
• Keep the charger away from water, moisture, and high temperatures.
• Do not disassemble or modify the charger.
• Use only a compatible USB power adapter (DC 5V/2A recommended) to power the charger.
• Supervise the charging process and remove batteries once fully charged.
• Keep out of reach of children.

Figure 2: The charger includes protection against over-charge, over-discharge, short circuit, and reverse battery insertion.

3. Package Contents

Verify that all items are present in the package:

• 1 x Hakeeta Lii-202 Battery Charger
• 1 x USB Cable
• 1 x User Manual (this document)

Note: Batteries are not included with the charger.

Figure 3: The Hakeeta Lii-202 charger and its USB cable.

4. Product Features

The Hakeeta Lii-202 USB Battery Charger offers the following key features:

• USB DC 5V input for versatile power options.
• Independent charging and management system for each slot.
• Two selectable charging current options: 500mA and 1000mA.
• LED indicators display charging status (25%, 50%, 75%, 100%).
• Integrated protection against over-charge, over-discharge, short circuit, and reverse battery insertion.
• Intelligent identification of bad batteries.
• Compatible with a wide range of Li-ion and IMR cylindrical batteries.

5. Setup

Follow these steps to set up your Hakeeta Lii-202 charger:

1. Connect the provided USB cable to the 'IN: 5V' port on the charger.
2. Plug the other end of the USB cable into a compatible USB power source (e.g., a wall adapter, computer USB port, or power bank) with a DC 5V/2A output.
3. The charger's LED indicators will briefly illuminate, indicating it is powered on and ready for use.

Figure 4: The charger connected to a laptop for power.

6. Operating Instructions

To charge batteries using the Lii-202 charger:

1. Insert Battery: Carefully insert one or two compatible cylindrical batteries into the charging slots, ensuring correct polarity (+ and -). The charger will automatically detect the battery type (Li-ion, Ni-MH) and begin charging.
2. Select Charging Current: Shortly after inserting a battery, press the 'MODE' button to cycle between the two charging current options: 500mA and 1000mA. The default current is typically 500mA. Select 1000mA for faster charging of larger capacity batteries, if supported by the battery.
3. Monitor Charging Status: The LED indicators (25%, 50%, 75%, 100%) will illuminate to show the approximate charge level of the battery.
4. Charging Completion: When the battery is fully charged, all four LED indicators (25%, 50%, 75%, 100%) will remain steadily lit. Remove the battery from the charger.

Figure 5: The charger offers 500mA and 1000mA charging current options.

Figure 6: Two batteries correctly inserted into the charging slots.

7. Compatible Batteries

The Hakeeta Lii-202 charger is designed to charge the following cylindrical battery types:

• Li-ion / IMR (3.7V, 3.8V): 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 10440
• Ni-MH / Ni-Cd (1.2V): AA, AAA, SC sizes

Note: Only support for charging Cylindrical Li-ion Battery (3.7V, 3.8V), Ni-MH, Ni-Cd Battery, LiFePO4 Battery.

8. LED Indicators

The LED indicators provide visual feedback on the charging process and battery status:

• Charging Progress: The 25%, 50%, 75%, and 100% LEDs light up sequentially to indicate the battery's charge level.
• Fully Charged: All four LEDs (25%, 50%, 75%, 100%) remain steadily lit.
• Bad Battery Identification: If the charger detects a bad or incompatible battery, the LEDs may flash or remain unlit, indicating an error.

Figure 7: LED indicators display charge status in 25%, 50%, 75%, and 100% increments.

Figure 8: The charger's intelligent system can identify bad batteries.

9. Maintenance

To ensure the longevity and proper functioning of your charger:

• Clean the charger regularly with a soft, dry cloth. Do not use liquid cleaners or solvents.
• Keep the charging slots free from dust and debris.
• Store the charger in a cool, dry place when not in use.
• Avoid dropping or subjecting the charger to strong impacts.

10. Troubleshooting

If you encounter issues with your charger, refer to the following common problems and solutions:

• Charger not powering on:
  • Ensure the USB cable is securely connected to both the charger and the power source.
  • Verify that the USB power source is functioning correctly and provides DC 5V/2A.
• Battery not charging:
  • Check that the battery is inserted with correct polarity.
  • Confirm that the battery type is compatible with the charger.
  • The battery may be deeply discharged or damaged. Try a different battery.
• Bad battery detected:
  • If the charger indicates a bad battery, remove it immediately. Do not attempt to charge damaged batteries.

11. Specifications

Figure 9: The bottom of the charger displays key specifications and certifications.

12. Warranty and Support

Information regarding product warranty and customer support is not provided within this manual. Please refer to the product packaging or the retailer's website for details on warranty coverage and how to contact customer service for assistance.