12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller Module
12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller Module
12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller Module
Premium Solar Charging Solution from The Tech Depot, Bengaluru
Fast shipping 7-day warranty on manufacturing defects 24/7 expert support
Product Overview
The CN3722 is a high-efficiency MPPT (Maximum Power Point Tracking) solar charge controller specifically designed for 3S lithium-ion battery systems. This intelligent module optimizes solar panel output to deliver maximum charging efficiency, making it ideal for off-grid solar applications, portable power systems, and renewable energy projects.
Key Features
MPPT Technology - Automatically tracks maximum power point for 30-40% more efficiency than standard PWM controllers
3S Li-ion Compatible - Perfectly calibrated for 3-cell lithium 18650 battery packs (9-12.6V nominal)
12V System Rated - Handles 12V solar panels and battery configurations
Compact Design - Small form factor ideal for space-constrained applications
Smart Protection - Over-charge, over-discharge, short-circuit, and temperature protection
LED Indicators - Real-time status monitoring
Wide Input Range - Compatible with various solar panel voltages
Technical Specifications
| Parameter | Details |
| Input Voltage | 6-60V (Solar Panel) |
| Output Voltage | 12V (3S Li-ion nominal) |
| Charging Current | Up to 20A (adjustable) |
| Efficiency | 95%+ |
| Protection Features | Over-voltage, Over-current, Over-temperature, Reverse polarity |
| Operating Temp | -10 degreesC to +60 degreesC |
| Dimensions | Compact PCB module |
| Weight | Lightweight |
| Warranty | 7-day warranty on manufacturing defects |
Why Choose This Controller?
Maximum Efficiency
MPPT algorithm extracts up to 40% more power from solar panels compared to traditional PWM controllers, reducing charging time significantly.
Lithium-Optimized
Purpose-built for 3S Li-ion battery chemistry with proper charging curves and cell balancing protection.
Reliable & Safe
Multiple protection layers prevent damage to batteries and connected devices-ideal for unattended remote installations.
Authentic & Verified
100% original product sourced directly from authorized distributors with full authentication.
Expert Support
Get technical guidance from electronics professionals via email and WhatsApp (24/7).
Applications & Project Ideas
DIY & Hobbyist Projects
- Portable solar power banks
- Off-grid cabin power systems
- Solar-powered IoT devices
- Emergency backup power systems
- Drone battery charging stations
Professional & Commercial
- Solar energy storage systems
- RV/Camper power management
- Boat/Marine solar installations
- Industrial remote monitoring systems
- Telecom tower backup power
Educational & Learning
- Renewable energy courses
- Electronics engineering projects
- Solar technology demonstrations
- Skill development workshops
What's Included
In the Box:
- CN3722 MPPT Solar Controller Module
- Technical datasheet and user manual
- Quick start guide
- Email/WhatsApp support access
- Warranty documentation
Shipping & Delivery
Fast Delivery: 7-8 days to most of India from Bengaluru warehouse
Location: The Tech Depot, Bengaluru
Secure Packaging: Professional packaging to prevent damage
Quality Assurance
100% Authentic - Verified from authorized suppliers
7-day warranty on manufacturing defects - Full manufacturer coverage
Quality Tested - Each unit tested before shipment
Expert Support - Technical team available 24/7
Frequently Asked Questions
Is this controller compatible with my 3S Li-ion battery pack?
Yes, the CN3722 is specifically designed for 3S lithium-ion systems (9-12.6V nominal). It includes proper charging curves and protection for Li-ion chemistry.
What's the difference between MPPT and PWM controllers?
MPPT controllers track the maximum power point of your solar panel in real-time, delivering 30-40% more charging power than PWM controllers. They're more efficient but slightly more expensive-worth it for larger systems.
Can I use this with different solar panel voltages?
Yes! The CN3722 accepts input from 6-60V solar panels, making it compatible with various panel configurations (12V, 24V, 36V panels can all be used).
Is this 100% authentic?
Absolutely. We source directly from authorized distributors with full authentication verification. Every unit is tested before shipment.
What warranty do I get?
7-day warranty on manufacturing defects covering all defects in materials and workmanship. Free replacement or refund for defective units within 7 days.
How fast is shipping?
7-8 days to most locations in India from our Bengaluru warehouse. Express shipping options available.
Do you provide technical support?
Yes! Full technical support via email and WhatsApp 24/7. Our electronics experts can help with installation, troubleshooting, and optimization.
What's your return policy?
7-day returns on manufacturing defects only with full refund
Buy 12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller Module Online in India
Purchase the 12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller 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 12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller 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 12V MPPT Solar Panel Controller CN3722 3S Lithium Li-ion 18650 Battery Charge Controller 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.