Replace the entire light. This is the easiest option, but it can also be the most expensive.
Replace the solar panel. If the solar panel is broken or not working properly, you can replace it with a new one
Replace the battery. If the battery is old or dead, you can replace it with a new one.
Repair the light. If the light is only slightly damaged, you may be able to repair it yourself.
– Check the battery to make sure it is properly inserted and charged.