Want to convert a battery powered radio to solar power? This homemade solar powered radio is an easy Do It Yourself Project . First buy the new 1.5 Watt Solar Panel from Harbor Freight or Harborfreight.com. The new Solar Panel comes with it’s own clamps and you can use these to connect directly to the terminals of your radio, and this eliminates the need for batteries. Have fun converting your battery operated radio to a solar powered radio!