Keyestudio Solar Charger Shield (Black and Eco-friendly) KS0521

AED 72.45



Keyestudio solar charger shield boasts the features of collecting energy, power management, and charging, as a stacked shield and compatible with the UNO R3 control board. On this shield, the BAT interface could output 5V when connected 3.0V-4.2V rechargeable batteries. At the same time, the USB interface connected to external power and SOL AR port connected to the solar panels can provide power for external batteries. When the DIP is dialed to ON end, external batteries or USB port supply power to the UNO R3 board. Moreover, CH LED(red) is on when charging the external battery. the OK LED indicator will be on if fully charged.


  • Output disconnect (dip switch control)
  • Short circuit protection
  • 5V output when the battery is connected
  • Continuous charging current up to 900mA
  • Battery status indicator (red: charging, green: fully charged )
  • Micro-USB connector 


  • Battery input voltage: DC 3.0-4.5V
  • USB input voltage: DC 4.75-5.25V
  • Solar input voltage: DC 4.8-6V
  • Maximum output power (with battery): 3W (600mA@5V)
  • Ripple voltage: <100mV @ 500mA
  • Size: 73*51mm
  • Weight: 19.2g