Specification
• Rigid solar panel
– Dimensions: 234 x 160 x 17 mm
– 7 V – 500 mA
Electrical data
Operational values:
• Minimum operational battery voltage 3.3 V
• Maximum operational battery voltage 4.2 V
• USB charging voltage of 5 V
• Solar panel charging voltage 6 – 12 V
• Battery charging current from USB 480 mA (max current input)
• Battery charging current from solar panel 300 mA (max current input)
Absolute maximum values:
• Voltage in any pin [-0.5 V, +3.8 V]
• Maximum current from any digital I / O pin of 40 mA
• USB power voltage 7 V
• Solar power 18 V power panel
• Charged battery voltage 4.2 V