MCP73871 Solar Charge Controller Board

This MCP73871 solar power management module is designed for 5V to 6V solar modules. It can charge the 3.7V Li battery via a solar panel. Included is also a large stabilization capacitor, which needs to be soldered to the board. The module is a cost-effective option to power your outdoor IoT projects with solar energy.

Info: There is not much documentation yet for the board.

Recommended Accessories:

• Solar cell 6V 165mA 1W
• 18650 Battery compartment / Battery holder with connection cable
• Li-Ion Battery 3.7V 3000mA NCR18650B 18650 with protective circuit

Features:

• Status LED display: Fully charged, charging, charge stop
• Default charging current 500mA can be changed from 50mA to 1A (soldering of resistors)
• Temperature monitoring possible by soldering an external 10K NTC thermistor (bypass resistor must first be removed on PCB)

Connection:

• PWR => + Solar
• GND => - Solar
• GND => - Load 
• Load => + Load
• Batt  => +Battery
• GND => - Battery

Documentation:

• Using MCP73871
• Data sheet MCP73871

Technical Details:

• Chip: MCP73871
• Dimension: 31.5 x 30.5 x 2.5mm
• Weight: 11g

Package Contents:

• 1x MCP73871 Solar charge controller board
• 1x 5pin pin headers
• 1x Stabilization capacitor