This Solar lipo charger is designed for single Lithium battery (3.7V) for intelligent charging, with input reverse polarity protection. The maximum charging current is 500 milliamperes and the connection is simple and convenient. Used with the solar battery and lithium battery, you can quickly build a solar power system. Nowadays green power, for stationary or mobile projects is becoming highly requested.

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Applications

• Simple solar charger.
• Solar power system, Green energy.

Specification

• Input Voltage: 4.4 ~ 6V
• Charging Current: 500mA Max (Depending on the solar battery supply capability)
• Charging Cutoff Voltage: 4.2V
• Operating Temperature: -40 ~ 85
• Module Size: 33mm * 33mm * 12mm(1.30″*1.30″*0.47″)
• Requisite battery: 3.7V lithium battery (Please note the maximum permissible charging current of the lithium battery)
• Charging Indicator:

  No Battery: Red LED Flashing
  Charging: Red LED
  Done: Green LED

Optional Parts

• Solar Panel (1.5v 250mA)
• 3.7V Polymer Lithium Ion Battery – 1000mAh

Documents

• Wiki doc
• Schematic

Shipping List

• Solar Charger Module 1

Projects

Project 1. ESP32 Solar Weather Station
The system will be placed on my balcony and will retrieve temperature, humidity, and air pressure. For this project you will need:

• 1x – DFRobot FireBeetle ESP32 IOT board

• 1x – DFRobot Gravity – I2C BME280

• 1x – DFRobot 3.7V Polymer Lithium Ion

• 1x – DFRobot Solar Lipo Charger

• 2x – 6V 1W Solar Panel

• 1x – Perfboard

• 1x – Female Header

• 1x – Enclosure/box

• Wires

• Screws