2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module
2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module
2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module
Premium Quality Electronics from The Tech Depot, Bengaluru
Fast shipping | 7-day warranty on manufacturing defects | 24/7 Expert support
Product Overview
This 2S 3A Li-ion Battery Protection & Charging Board is a professional-grade module designed for dual 18650 lithium-ion battery packs. It provides integrated charging control, overcharge protection, overdischarge protection, and short-circuit safety-essential for safe and efficient battery management in portable devices and DIY projects.
Output Voltage: 7.4V (nominal) / 8.4V (fully charged)
Charging Current: 3A maximum
Cell Configuration: 2S (2 cells in series)
Compatible Cells: 18650 Li-ion batteries
Key Specifications
| Feature | Details |
| Product Type | 2S Battery Protection & Charging Module |
| Voltage Range | 6.0V - 8.4V |
| Charge Current | 3A maximum |
| Discharge Current | 3A maximum |
| Cell Type | Li-ion 18650 |
| Configuration | 2 cells in series (2S) |
| Protection Features | Overcharge, overdischarge, short-circuit, overcurrent |
| Operating Temp | -20 degreesC to +65 degreesC |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects coverage |
| Support | Email & WhatsApp (24/7) |
Why Choose This Product?
100% Authentic - Sourced from trusted distributors with verification
Safety First - Multi-layer protection against common battery hazards
Fast Shipping - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse
Expert Support - Technical assistance available round-the-clock
Reliable Performance - Tested and trusted by professionals
Cost-Effective - Quality protection at competitive pricing
Features & Benefits
Protection Capabilities
- Overcharge Protection - Prevents damage from excessive charging
- Overdischarge Protection - Protects battery from deep discharge
- Short-Circuit Protection - Automatic cutoff on short circuits
- Overcurrent Protection - Limits discharge current to safe levels
- Temperature Monitoring - Safe operation within thermal limits
Design Advantages
- Compact form factor fits standard battery enclosures
- Low self-discharge rate for extended storage
- Reliable MOSFET-based protection circuit
- Easy integration with charging systems
- Durable PCB design for long-term reliability
Applications & Project Ideas
DIY & Hobbyist Projects
- Portable power banks and USB chargers
- Wireless headphones and speakers
- RC toys and drones
- LED flashlights and headlamps
- Custom electronics projects
Professional & Industrial Use
- Backup power systems
- Portable medical devices
- Industrial handheld tools
- Professional photography equipment
- Commercial IoT devices
Learning & Education
- Electronics and battery management courses
- Arduino and embedded systems projects
- Student engineering projects
- Technical skill development
- Hands-on STEM learning
What's Included in the Package
Inside the Box:
- 1x 2S 3A Li-ion Battery Protection Board Module
- Technical documentation and wiring diagram
- Quick start guide
- Support contact information
How to Use
- Connect Battery Cells - Solder or connect two 18650 cells in series to the B+ and B- terminals
- Attach Load - Connect your device to the OUT+ and OUT- terminals
- Charge Safely - Use a compatible charger (3A max) on the CHG+ and CHG- terminals
- Monitor - Board automatically manages all protection functions
Detailed wiring diagram included in documentation
Technical Support & Service
24/7 Customer Support
- Email: support@thetechdepot.in
- WhatsApp: Available for quick technical queries
- Response Time: Within 2-4 hours
Warranty & Returns
- Warranty Period: 1 year from purchase date
- Coverage: Manufacturing defects and component failures
- Return Policy: 7-day returns for defective units
- Replacement: Free replacement or full refund option
Frequently Asked Questions
Is this board 100% authentic?
Yes, absolutely. All products are sourced from authorized distributors and verified for authenticity before shipment. We stand behind the quality of every component.
What type of charger do I need?
You need a charger rated for 7.4V/8.4V with maximum 3A output. The board includes protection, but using a proper charger ensures optimal performance and battery longevity.
Can I use this with different battery types?
This board is specifically designed for 18650 Li-ion cells in a 2S configuration. Using other battery types may damage the board or create safety hazards.
How fast is shipping?
Standard shipping takes 7-8 days to most locations in India from our Bengaluru warehouse. Express options available for urgent orders.
What warranty coverage is provided?
We offer a comprehensive 7-day warranty on manufacturing defects covering all defects in materials and workmanship. This includes protection circuit failures and PCB issues.
Do you offer bulk/wholesale pricing?
Yes! For orders of 10 units or more, we provide special wholesale discounts. Contact us via email or Wh
Buy 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module Online in India
Purchase the 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.