Parts required:
1.Solar panel
2.Battery casing
3.Blocking diode
4.Project box
5.Soldering tools
Steps:
1.Drill two holes on the project box
2.Solder both wires for positive n negative pole
3.In positive pole, connect with blocking diode to prevent from reverse current flow
4.Connect to battery casing
5.Place the battery into their casing
6.Place the project box under sun light
