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  • Interchangeable Plug 8.4V 3A Charger For 2S 7.4V Lithium Battery
Interchangeable Plug 8.4V 3A Charger For 2S 7.4V Lithium Battery

Interchangeable Plug 8.4V 3A Charger For 2S 7.4V Lithium Battery

8.4V 3A li ion battery charger 

Interchangeable Plug 8.4V 3A Charger | 7.4V 2S Li-Ion Battery Charger | UL, PSE, CE, SAA, UKCA, FCC Listed

Henryuan safe and reliable 8.4V 3A li-ion battery charger, the UL cUL FCC PSE CE SAA UKCA listed 8.4V 3A lithium battery charger. Its high quality 7.4V 3A li-ion battery chargers(2S 7.4V Lithium Battery Charger 3A) has advanced charging scheme design with multiple protection mechanisms and high quality components, which make charging safer and faster. Multiple interchangeable wall ac plugs make them worldwidely use. They are used as a 8.4V 3A lithium charger for test instrument, massage pad, portable power bank, LED lighting, robotics, fishing and outdoor gears.

 Key Features and Specifications
1. Worldwide Safety Certifications:


2. Input Specifications:

  • Wide Input Voltage Range: 90Vac - 264Vac, suitable for global use.
  • Rated Input Voltage: 100Vac - 240Vac, optimizing performance across different power supplies.
  • Input Frequency: 47Hz - 63Hz, ensuring compatibility with various power systems.
  • Input Current: 1.3A, designed for efficient power usage.
  • Inrush Current: 35A, providing robust protection against power surges.

3. Reliable Output Performance:

The charger’s advanced design features dual-color LED indicators, clearly displaying the charging status:
Output Voltage Range: 8.4V Max

4.Charging Phases:

  • Model: 8.4V 3A li ion charger
  • Constant Current Mode: 3A, 5V - 8.4V (RED LED)
  • Constant Voltage Mode: 3A decreasing to 0.3A, 8.4V (RED LED)
  • Trickle Charging Mode: 0.3A decreasing to 0, 8.4V (GREEN LED)


Charging Stage

LED Indicator





Constant Current




Constant Voltage




Trickle Current

LED turn red to green when charging current below 0.3A

5. Efficient Charging Curve:

Optimized for Fast Charging: Tailored 8.4V 3A charging curves ensure efficient and safe charging for your 7.4V lithium batteries.

8.4V 3A li ion charger

6. Comprehensive Protection Features:

  • Overcurrent Protection: Safeguards against excessive current.
  • Overvoltage Protection: Prevents damage from voltage spikes.
  • Short Circuit Protection: Ensures the safety of your battery and charger.
  • Reverse Polarity Protection: Protects against incorrect battery connections.

7. Quality Assurance and Customer Support:

Henryuan’s commitment to quality is unmatched, with a rigorous approach to manufacturing and customer service:
  • Experienced Sales Engineers: Over a decade of expertise in understanding and meeting customer needs.
  • Strict Supplier Selection: Only the highest quality raw materials are used.
  • Thorough Inspection Processes: Rigorous checks at every stage of production.
  • Veteran Design Engineers: Over 20 years of experience in creating innovative solutions.
  • Skilled Production Team: Supported by state-of-the-art testing equipment.
  • Comprehensive Aging Tests: 100% aging testing, up to 4 hours at full load, ensuring reliability.
  • Responsive After-Sales Service: Fast analysis and resolution within 48 hours.

Why Choose Henryuan?

With over 13 years of experience in the development and production of lithium battery chargers, Henryuan is a trusted lithium charger industry leader. Our 8.4V 3A lithium battery charger is renowned for its superior performance, safety features, and wide-ranging applications. We export to numerous countries and regions, including the Americas, Europe, the United Kingdom, Australia, and Asia, maintaining a strong market presence.
Whether you need a reliable charger for automotive, marine, or renewable energy applications, Henryuan has a solution tailored to your needs. Explore our range of 8.4V li-ion chargers for 2S 7.4V li-ion battery packs, available in various currents from 0.5A to 25A, and contact our knowledgeable sales engineers to find the perfect charger for your requirements.

More 7.4V Lithium Battery Chargers Links:

Contact Us

For a reliable, safe and efficient 8.4V 3A lithium battery charger, reach out to Henryuan’s expert sales team today.