MD-202A Dual-Slot 18650 Li-ion Battery Charger – 1000mA

MD-202A Dual-Slot 18650 Battery Charger

The MD-202A 18650 Battery Charger can charge one or two rechargeable cells. Its two independent channels allow each installed battery to charge separately.

In addition, each slot includes a charging-status indicator. The red light shows active charging, while the green light indicates charge completion.

Key Features

• Charges one or two 18650 Li-ion batteries
• Includes two independent charging slots
• Provides individual LED indicators
• Supports a universal 100V–240V AC input
• Charges each cell up to 4.2V
• Uses spring-loaded battery contacts
• Includes an attached power cable
• Features a compact ABS housing
• Supports automatic charge completion

Technical Specifications

• Model: MD-202A
• Battery Type: Rechargeable 18650 Li-ion
• Number of Slots: Two
• Charging Channels: Independent
• Input Voltage: 100V–240V AC
• Input Frequency: 47–63Hz
• Charging Voltage: 4.2V DC
• Rated Charging Current: 500mA
• Plug Type: EU plug
• Cable Length: Approximately 45cm
• Charger Dimensions: Approximately 100 × 47 × 30mm
• Housing Material: ABS plastic
• Typical Charging Time: Approximately 3–8 hours

Charging time depends on the battery capacity, charge level, condition, and number of installed cells.

LED Indicators

• Red Light: The battery is charging
• Green Light: Charging has finished or the slot is empty

However, indicator operation may vary slightly between manufacturing batches.

Protection Features

The charger provides several built-in safety functions, including:

• Automatic charge termination
• Overcharge protection
• Overcurrent protection
• Short-circuit protection
• Thermal protection

These functions add protection during normal use. Nevertheless, always monitor lithium batteries while charging.

How to Use

1. Inspect each battery before charging.
2. Check the positive and negative terminals.
3. Insert one or two 18650 cells correctly.
4. Connect the charger to a compatible AC outlet.
5. Monitor the LED indicators.
6. Remove the batteries after charging completes.
7. Disconnect the charger when not in use.

Applications

Use the MD-202A to charge 18650 batteries for:

• Rechargeable flashlights
• Electronics projects
• Robotics
• Portable devices
• Testing equipment
• Workshop tools
• Battery-powered prototypes
• Hobby and maker projects

Package Contents

• 1 × MD-202A dual-slot 18650 battery charger

Important Notes

• Batteries are not included.
• Use rechargeable 18650 Li-ion cells only.
• Never charge primary or non-rechargeable batteries.
• Observe the correct battery polarity.
• Do not charge damaged, swollen, leaking, or overheated cells.
• Keep the charger away from water and flammable materials.
• Do not cover the charger during operation.
• Check the output rating printed on the supplied batch.
• Do not leave lithium batteries charging unattended.