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How Do I Change the Batteries in Christmas Solar Star Lights?

by Chris Meehan
  • Overview

    Solar-powered LED (light-emitting diode) holiday or Christmas lights are becoming a popular alternative to traditional plug-in Christmas lights. They use far less energy, the bulbs last for much longer than incandescent lights, and they don't need to be plugged in, making it much easier to place them just about anywhere. However, they use batteries, and batteries wear out over time. LED bulbs will last far longer than the batteries that power them, but the batteries can be replaced and it shouldn't take you long to do so. Many types of lights exist, so this article does not address just one type.
    LED lights are popular replacements for plug-in lights.
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  • Step 1

    Take the solar cell and open it up. Batteries for the majority of solar-powered Christmas light strings are underneath the photovoltaic cell that powers them. This may mean loosening screws with the screwdriver, unscrewing the base from the top, or using a flat-head screwdriver to loosen the tabs that hold the base and top of the battery pack together.
    Use a screwdriver to help open the battery pack.
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  • Step 2

    Determine battery type. Depending on the size of the light string, solar Christmas lights use different batteries. Popular battery sizes are AA, AAA and C. As long as your light string uses one of these, it's pretty easy to find rechargeable batteries to replace them.
    Rechargeable batteries can last for two or more years.
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  • Step 3

    Put the new batteries in the same way as the old batteries. then put the cover back together by reversing the former steps.
  • Step 4

    Clean the solar cell. This isn't really required, but you should take this opportunity to clean the photovoltaic cell. Doing so will help the batteries charge quicker and make the lights last longer.
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  • Screwdrivers (Phillips and flat-head) Batteries
  • Screwdrivers (Phillips and flat-head)
  • Batteries
  • The best batteries to use are probably lithium-ion, since they'll last a long time and take small and partial charges.
  • The best batteries to use are probably lithium-ion, since they'll last a long time and take small and partial charges.
  • Handle the solar cell with some care, as they can break.
  • Handle the solar cell with some care, as they can break.

References & Resources