Small solar panel made from various separate panels made with minimum materials.
Basic small panel for charging a few AA batteries over the span of 3/4days of sun,(A rarity in the the uk however just in case i made a small panel)
Will probably expand this panel so it is a temporary design and the rest of the A4 size panel will be filled with mixed cells, obtained form old toys solar garden lights even calculator panels would add a tiny amount of power,soldering on glass panels takes some practice but can be done.
(2.01 VOLTS IN LOW LIGHT CONDITIONS "TESTED") More then enough to charge your battery even on a dark day..even from indoor household light! harvest some back even at night..why not.. (SEE VIDEO BELOW)
Step 1: Parts Needed
x5+. Solar Cells. (scavenged from solar garden lights etc)
x1. A-4 sheet of Plexiglass/Perspex.
x2 Colors of electronic wire. (optional just helps indicate polarity)
x1 A4 Size piece of Cardboard. (for the temporary backing)
x1 Multimeter voltage & battery tester. (set mine to read 10v DC for reference)
x1 Blocking Diode. (Scavenged from an old TV unknown rating or type not pictured)
x1 Glue Gun & Glue.
x1 Soldering Gun/Iron & Solder.
x1 Helping hands. (for holding the panels while you solder the connections)
x2 Batteries for charging, (mine are recycled from old solar lights)
Step 2: Construction
Simple construction collect all your cells and solder the connections with wires noting the polarity,Test each panel after you have soldered the connections with a small light,i used an x3 led light and old recycled mobile battery to power it,Once done now link them in series positive to negative,positive to negative,and carefully place them on a pane of some kind,place under a large desk lamp and test again to make sure it works,now solder the blocking diode as so it is removable at a later date for use in other/larger panel etc,see picture,and attach to the end of the wire on your panel once done..
Easy part now make a cardboard backing and paint it up in whatever desired colour or not,and glue all the panels in place on it,then the A4 plexiglass/perspex in place ontop.Retest it see next step.
Step 3: Testing and Uses.
Test the whole thing.
(It works fine as you can see lamp was not that bright nor powerfully,would get much more power on a sunny day,in summer)
Uses pretty obvious to charge a few AA batteries etc,in a few days of strong sunlight,and make all of your electrical experiments solar powered.