Solar USB Charger 2.0

Strip the ends of all wires. This includes the battery holder.

Solder the diode to the + (Positive) solder point on the Solar Cell.

Note: The Diode has a black bar on one side. That side goes to the wire, non black bar side to the Solar Cell.

Twist one end of your red wire around the other side of the diode. Solder into place.

Snip off excess parts of the Diode legs.

Thread the wire through the "Top" laser cut wood part.

Twist the Red wire from the solar cell together with the Red wire from the battery holder.

Solder both wires to the middle pin on the switch.

Solder your other piece of Red wire to either of the outside legs.

Solder the Red wire coming off the switch to the Positive terminal on the USB Circuit.

Solder your Black wire to the Negative side of the solar cell.

Thread it through the "Top" wooden piece.

Twist the Black wire from the Solar Cell together with the Black Wire from the Battery Holder.

Solder the two black wires to the Negative terminal on the USB Circuit.

Move the small white switch so that it is closest to the black wire.

Snip off the White and Red LEDs. (They're useless in this project.)

Using a screw driver, assemble the body.

Use double sided tape to hold down the USB circuit and battery holder.

Close up the box and secure the solar cell to the top using tape.

The batteries included in the kit may be dead. Use a wall charger to quickly charge them up.

Or use some regular AAs for a quick test, though NEVER try to solar charge regular AA batteries.

Check out the diagrams in this step if you're worried you missed something.

The solar cell on this charger is weak and it may take a couple of days to charge up your internal batteries all the way.