AMX3d 5V 30mA Micro Mini Power Solar Cells For Solar Panels, (53X30mm) Solar Cell capable of charging 3.6-3.7 V Battery (Coin Cell, AA, AAA, etc) Great for science projects, electronic applications, charging batteries Easy solder anode and cathode Operating Voltage: 5V, Working Current: 30mA, Peak Power: 0.15W, Output Voltage: charge for 3.6 - 3.7V Battery Dimensions: 53x30x3mm