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FMA

DC 4.2V 0.5A-3A Intelligent Smart Charger for 3.6V 3.7V Li-ion Li-Po Battery Over Voltage Current Protection

DC 4.2V 0.5A-3A Intelligent Smart Charger for 3.6V 3.7V Li-ion Li-Po Battery Over Voltage Current Protection

Regular price $11.57 USD
Regular price $13.31 USD Sale price $11.57 USD
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Product Overview

Premium 4.2V Intelligent Smart Charger designed specifically for 3.6V and 3.7V Li-ion and Li-Po rechargeable battery packs (1S configuration). Featuring advanced intelligent voltage recognition technology and multiple current options from 0.5A to 3A, this charger provides safe, efficient charging solutions for various battery capacities.

 

Key Features

  • Multiple Current Options: Choose from 0.5A, 1.5A, or 3A to match your battery capacity and charging speed requirements
  • Intelligent Voltage Recognition: Built-in smart IC automatically detects battery voltage (3.6V/3.7V) and chemistry (Li-ion/Li-Po)
  • Dual Chemistry Compatibility: Works with both 3.6V Li-ion (1S) and 3.7V Li-Po (1S) battery packs
  • Auto-Stop Protection: Automatically stops charging when battery is full, preventing overcharge damage and extending battery life
  • Advanced LED Indicator: Three-state LED shows charging status, completion, and error conditions
  • Over-Voltage & Over-Current Protection: Built-in safety features protect both charger and battery
  • Reverse Polarity Protection: Protects charger and battery from incorrect connection with flashing LED warning
  • Universal AC Input: 100-240V, 50/60Hz compatibility for worldwide use
  • International Certifications: FCC, CE-LVD, CE-EMC, RCM, PSE, and CCC certified for safe operation
  • Durable Construction: High-quality ABS housing with excellent heat dissipation for reliable performance
  • Multiple Plug Options: Available with US, EU, AU, UK plugs or 4-in-1 universal adapter

Technical Specifications

Brand FMA / DSS
Compatible Battery 3.6V Li-ion (1S) / 3.7V Li-Po (1S)
Input Voltage AC 100-240V, 50/60Hz
Output Voltage DC 4.2V
Output Current Options 0.5A, 1.5A, 3.0A (model dependent)
Charging Method CC/CV (Constant Current/Constant Voltage) with intelligent IC recognition
Protection Features Overcharge, overcurrent, over-voltage, short-circuit, reverse polarity
Weight 90g (approx.)

LED Indicator Status

  • Green Light (Solid): Power on (standby) or fully charged - safe to disconnect
  • Red Light (Solid): Charging in progress - do not disconnect
  • Green Light (Flashing): Wrong polarity connection or battery damaged - check connection immediately

Current Selection Guide

  • 0.5A: Ideal for small capacity batteries (200-1000mAh) or gentle charging
  • 1.5A: Suitable for medium capacity batteries (1000-3000mAh)
  • 3.0A: Best for larger capacity batteries (3000-6000mAh) requiring faster charging

Available Models

Choose from multiple configurations to match your specific needs:

  • Output Current: 0.5A, 1.5A, or 3.0A
  • Regional Plug: US, EU, AU, or UK
  • 4-in-1 Universal: Includes interchangeable plugs for US, EU, AU, and UK (3.0A model only)

Applications

  • Flashlights and headlamps
  • Portable electronics
  • RC toys and small vehicles
  • Handheld devices
  • Emergency lighting
  • Other 3.6V/3.7V Li-ion/Li-Po powered devices

Safety Certifications

Certified to international safety standards with detailed report numbers:

  • FCC: Report No. 16063326 (USA/North America)
  • CE-LVD & CE-EMC: CE Report No. 16063325, IEC No. DE 2-018390 (Europe)
  • RCM (SAA+C-TICK): Report No. 16064855 (Australia)
  • PSE: Report No. JD 50301812 (Japan)
  • CCC: Report No. 2015010907755103 (China)

Package Contents

  • 1× 4.2V Intelligent Smart Charger (current and plug type as selected)
  • Selected plug type (US/EU/AU/UK or 4-in-1 universal adapter)

Condition: Brand New with Manufacturer Warranty

Safety Information

  • Charging: Always charge batteries in a well-ventilated area away from flammable materials. Never leave charging batteries unattended.
  • Storage: Store the charger in a cool, dry place away from direct sunlight and moisture.
  • Operation: Do not use the charger if the cable or housing is damaged. Ensure proper polarity connection before charging. If LED flashes green, immediately disconnect and check polarity or battery condition.
  • Temperature: Operating temperature: 0°C to 40°C (32°F to 104°F). Do not use in extreme temperatures.
  • Handling: Disconnect the charger from power source when not in use. Avoid dropping or subjecting to impact.
  • Inspection: Regularly inspect cables and connectors for wear or damage. Replace if any damage is found.
  • Current Selection: Always select appropriate charging current based on your battery capacity. Using too high current may damage smaller batteries.
  • Battery Compatibility: Only use with 3.6V Li-ion or 3.7V Li-Po (1S) batteries. Do not attempt to charge other battery types or voltages.
  • Polarity Warning: Ensure correct polarity when connecting the battery. Incorrect connection may damage the battery or charger.

Shipping & Transportation Notice

  • Hazardous Goods: This charger may be subject to shipping restrictions in certain regions due to battery-related regulations.
  • Air Transportation: May have limitations for air freight. Please check with carrier for specific requirements.
  • Packaging: Product is packaged according to international shipping standards to ensure safe delivery.
  • Delivery Time: Shipping times may vary depending on destination and customs clearance procedures.
  • Documentation: All necessary shipping documentation and safety data sheets are included with commercial shipments.

Product Gallery

Charger overview

Charger connector details

Charger LED indicator

Charger specifications

How to Select the Right Charger

Battery selection guide

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