CN3722 5A MPPT Charge Controller Module

Description

The CN3722 5A MPPT Charge Controller Module is a high-performance solution for maximizing the efficiency of solar charging systems. Designed with advanced Maximum Power Point Tracking (MPPT) technology, this module optimizes power harvesting from solar panels, ensuring maximum energy conversion even in variable sunlight conditions.

Capable of handling up to 5A charging current, the CN3722 is ideal for charging lithium-ion, LiPo, and LiFePO4 batteries in a wide range of applications, including solar-powered devices, portable power stations, and off-grid systems. Its integrated MPPT algorithm intelligently adjusts the charging parameters to match the solar panel’s optimal power output, delivering faster and more efficient charging compared to traditional controllers.

Built for reliability, the CN3722 includes multiple safety features such as overcharge, overcurrent, over-temperature, and reverse-polarity protection. These safeguards ensure both your batteries, and the charge controller remain protected, providing peace of mind for long-term use. The module supports a wide input voltage range, making it compatible with various solar panel configurations.

CN3722 5A MPPT Charge Controller Module Specifications:

1. Solar cell maximum power point tracking, the output current is greater than the solar panel current. Really ultra-high efficiency MPPT, support 8-28V, solar high current within 1OOW For charging, it is recommended to equip each solar panel with one module) Multiple modules can be expanded in parallel recharging current
2. The output voltage can be adjusted arbitrarily, CC-CW automatic control (support single or multi-cell Lithium battery or lithium iron phosphate or lead-acid battery, high-power LED, etc.)
3. Complete battery charge management
4. PWM switching frequency: 300KHz
5. The constant current charging current is set by an external resistor (preset 5000mN2000MA)
6. Trickle charge the deeply discharged battery
7. Double indication of charging status and charging end status (red light on/full blue light when charging On/Red light flashes and blue light is always on, indicating that the battery is not connected)
8. Low power consumption, soft start function
9. Imported high frequency low conduction internal resistance double MOS tube, 10A high current double diode, High-efficiency flat high-power inductors, constant current detection resistance, low dropout protection against reverse connection Protection, reverse connection does not work, to prevent reverse connection damage to the charging board.

Scope of application:

1w-100W 9V-28V suitable for 9V 12V 18V 24V solar panels to charge batteries, nickel-cadmium, nickel-metal hydride, lithium batteries (batteries), wind generators, solar streetlights, etc.

How to set up the CN3722 5A MPPT Charge Controller Module:

Step 1: Connect the solar battery, not the battery to be charged. If the output has voltage, go to step 2. If there is no output, slowly reduce the MPPT counterclockwise until there is an output voltage.

Step 2: Turn down the output voltage counterclockwise until the red and blue lights flash, and then roughly adjust the output voltage to the full cut-off voltage

Step 3: Connect the dead battery and monitor the charging current with an ammeter on the output terminal and fine-tune the MPPT potentiometer until the charging current is the maximum.

Step 4: Connect a battery that is just fully charged. If the blue light is on, increase the output voltage clockwise until the red light is on. Then slowly reduce the output voltage counterclockwise until the blue light is on and then use a multimeter to measure to determine whether the cut-off voltage is correct to avoid overcharging! If the
MPPT voltage value of the solar panel is known, (The MPPT voltage value can directly ask the seller who sells the solar panel to you.)