DO THIS AT YOUR OWN RISK. there is high voltage stored inside of these capacitors that can easily pose a risk. I am not responsible for any damage or injuires.
Step 1: Things needed
two slide switches on/off SPST
One solar panel (4.5 volts max)
double A battery holder
Nickel based battery
two rca plugs
Step 2: Modding the camera circuit
1st- we need to take apart the camera. Most are not built to last so taking it apart will be easy. Find the plastic tabs around the case and break them away or pry it open with a flathead screw driver.
After the camera is apart and you have the circuit out you should be able to identify a few functions. On most cheap cameras there isn't a swtich that can be moved around. On mine there were two copper pieces that were pressed together by a piece of plastic from the case. Once they are pressed together they close the circuit. The switch I am describing right now is the switch that when pushed charges the capacitor. There were two switches on my camera, one was the capacitor charge and the other was the button that snapped the pictures. The capacitor charge switch is easy to identify and easy to mod. We will be adding a slide switch to bridge the connections. This will give us the option of charging the capacitor.
2nd- If your camera comes with an led indicator you can go ahead and extend it. so we can later mount it to the tin.
3rd- we are going to need a new battery pack. My camera used a triple A battery but I am using a double A battery holder/pack. Since triple and double A batteries have the same voltage this won't be a problem. In order to add a new battery holder you need to identify the polarity of the previous battery connections. This is easily done by looking at the battery and how it sits in the camera,
Step 3: The capacitor
1st- We will need two male RCA plugs. Break off the copper on the outside of the plug. just bend it with some pliers and it should break off easily. after that strip the wire insulation. You will see two sets of wires. One set of wire will be insulated and the other set of wire will be woven around the insulated wire. We need the insulated wire, so cut off the woven wire. The woven wire is the ground. The copper we broke off that was around the plug is the ground.
2nd- we will be soldering these plugs to the capacitor leads. I recommend putting a switch in between one of the plugs and one of the leads. This switch will act as a safety switch
Step 4: The solar panel.
1st- tin the diode and solder it to the solar panels positive connection. Solder the diode so that the side with the line is facing out. See my picture.
Step 6: Moving to the tin.
1st- Mark the tin and cut holes for the switches, the solar panel and two holes to feed the wires through.
I ended up solderding my switches to the lid of the inside of the tin to secure them.
2-after the holes are cut start moving in the circuitry. start by hot gluing the solar panel to the top of the lid and then solder wires from the panels positive connection to the battery holder positive connection. Same with the ground. Mount the switches howver you see fit. I mounted mine through the lid and ended up soldering the switch itself for support (see pictures)
3- hot glue all the componets in place and test it out!
Thank you for viewing and if you have any questios just ask! :)