Rechargeable Batteries for Solar Lights

*Memory Effect: The Memory Effect occurs in NiCd batteries when repeated recharging after only partial discharge causes them to "remember" a shorter life cycle. This creates a premature voltage drop, making the battery appear empty even though energy remains. Learn more about the differences between NiCD and NiMH batteries with our page on the Technical info on rechargeable battery page.

**Eco-Friendly: Cadmium is a heavy metal that is toxic to humans, animals, and plants. If NiCd batteries end up in a landfill, the cadmium can leach into the soil and water. Because of this, NiCd batteries are classified as hazardous waste and are illegal to throw in the trash in many places. NiMH batteries do not contain cadmium. They use a hydrogen-absorbing alloy that is significantly less toxic, making them much safer to handle and dispose of (though they should still be recycled). Check out Batterynetowork.org to find a location to recycle your used or unwanted batteries.