Solar Lipo Charger (3.7V)

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

• 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

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

• Wiki doc
• Schematic

• Solar Charger Module ×1

• 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