Now that summer is upon us some of you are digging out those solar lights to put along the sidewalk again to make a nice shining light on your walkway. So you put them all in the ground let them charge the whole day only to find out that night that most of them don’t work and the ones that do are very dim and not doing much. Even though they don’t cost much who wants to go out every summer and buy new lights, I know I don’t. Working in the solar industry we sell batteries with our systems, so it would only make sense that these lights would take batteries too. Upon some investigations of my walkway lights I found some screws in the bottom of them, and me being the tinkering type of person, decided to see just how these little lights worked. What I found upon removing the screws was simply a little AA battery. I guess it never occurred to me that all I would have to do to fix these lights is just replace the battery inside and the next night when dawn came upon us my lights were working again. Replacing all the batteries in my lights only cost as much as it would have cost to replace about 2 of the lights I currently had. Another quick tip that I found is that if the lights are still not bright after replacing the batteries you can try to put some more life into the cell itself. Looking at my own I noticed the plastic on the top looked a little cloudy, this would prevent the sun from being able to give a full charge to the battery. After looking into it I found a really neat idea that made sense so I tried it. I got out some clear nail polish and put a thin coat on top of the solar cells and once again they looked shiny and new like the day I bought them.