MPPT Solar Power Management Module for 6V-24V Solar Panel

This solar power management module is designed for 6V to 24V solar panels. It can charge the 3.7V Li-battery through a solar panel or a USB connection and provides a regulated 5V/1A USB output. This MPPT (Maximum Power Point Tracking) solar charger offers you the ability to get the maximum power from a solar panel into a LiPo battery. A battery holder for 14500 batteries is already soldered on the board where you can directly insert a 14500 Lipo cell. However, you can also connect another Lipo battery via the PH2.0 connector. The Solar Lipo Power Management Module is suitable for solar-powered, energy-saving IoT and other projects where you want to power your Arduino.

Warning:
DO NOT place non-rechargeable batteries, such as dry batteries, in the battery compartment. Attempting to charge a non-rechargeable battery can have serious consequences, including an explosion.

Features of MPPT Solar Power Management:

• Supports MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar module.
• Battery can be charged via solar panel or USB port
• A DC-002 jack input or screw terminal input is available for connecting the solar cell
• Integrated MPPT SET switch for selecting the solar cell voltage
• Two regulated 5V outputs: Pin headers and USB port
• Onboard high-performance aluminum electrolytic capacitor and SMD ceramic capacitor for a constant and stable output voltage
• 14500 battery holder and PH2.0 battery connector for connecting 3.7V Li-batteries.
• Multiple LED indicators for monitoring the status of solar module and battery
• Multiple protection circuits for: overcharge, deep discharge, reverse protection, overheating and overcurrent, short circuit

Recommended Accessories:

• 14500 3.7V Li-Ion Battery 750mAh ICR14500
• 6V 0.83A Monocrystalline Solar Panel 5W
  

Documentation:

• Wiki
• User Manual
• Schematic

Connections and Functions of MPPT Solar Power Management:

1. Solar module charging input (for connecting the solar cell)
2. USB charging input
3. Regulated 5V/1A and 3.3V 1A output 
4. Battery interfaces for connecting 3.7V Li-battery, PH2.0 connector or 14500 battery holder
5. CS8501: USB power management chip for USB charging and 5V/1A boost output
6. CN3791: Solar power management chip for charging the solar module and reading the buck input.
7. Li-battery protection chip: Li-battery overcharge / deep discharge protection
8. Battery switch
9. MPPT SET switch (bottom) supported levels: 6V/9V/12V/18V/18V/24V
10. BOOT button
11. Battery capacity indicators
12. USB charging indicators
13. Charging indicators for solar modules
14. Battery warning on incorrect Lipo cell connection
15. Power indicator 5V/1A output

Technical Details: 

• Solar cell input voltage (SOLAR IN): 6V to 24V
• Micro USB input voltage (USB IN): 5V
• Pin header and USB output (USB OUT): 5V 1A
• Pin header: 3.3V 1A
• Charge termination voltage: 4.2V
• Deep discharge protection voltage: 2.9V
• Solar module charging efficiency: approx. 78%
• USB charging efficiency: approx. 82%
• Max. quiescent current: <2mA
• Operating temperature: -40°C to 85°C
• Dimensions: 65.2 × 56.2 × 22.9mm
• Weight: 31g

Package Contents 

• 1x MPPT Solar Power Management Module for 6V-24V Solar Panels