DFRobot 3.7V Solar Li-Po Charge Controller

With this charge controller from DFRobot, you can use a 4.4-6V solar panel to charge a 3.7V battery. The board has a crimp terminal connected in parallel with the battery output, where you can directly connect a microcontroller, for example, and thus operate your Arduino project with solar power. The built-in CN3083 charging chip has a maximum charging current of 500mA. 

Recommended accessories: 

• Solar cell 5V 200mA 1W 110x60mm
• LiPo Battery 1500mAh JST 2.0 / Lithium Ion Polymer
• Li-Ion Battery 3000mA 18650 with protection circuit and connector

Documentation:  

• DFRobot Wiki

Technical details: 

• Manufacturer: DFRobot 
  
• Manufacturer SKU: DFR0264 
  
• Charging chip: CN3083 
  
• Input voltage: 4.4-6V 
  
• End of charge voltage: 4.2V 
  
• Max. charging current: 500mA 
  
• Operating temperature: -40°C – 85°C 
  
• LED indicator:
• Red flashing: No battery 
  
• Red: Charging 
  
• Green: Fully charged  
  
• Dimension: 33 x 33 x 12mm  
• Weight: 13g

Scope of delivery:  

• 1x DFRobot 3.7V Solar Li-Po Charge Controller