What Kind of Rechargeable Batteries Do Solar Lights Use?

Solar Light is a cheap and eco-friendly solution for outdoor lighting.They use internal rechargeable batteries, so no wiring is required and can be placed almost anywhere.Solar-Small solar cells for electric lights-Charge the battery during the day.Once the sun goes down, the battery will power the device.Most solar lights use rechargeable AA-size nickel-The CD battery must be replaced every year or two.NiCads is ideal for outdoor solar energyBecause they are sturdy and durable batteries, they have high energy density and long life.However, since cadmium is a toxic and highly regulated heavy metal, many eco-friendly consumers do not like to use these batteries.Nickel-The metal hydrogen battery is similar to NiCads, but has a higher voltage and a life expectancy of three to eight years.They are also safer for the environment.However, NiMH batteries get worse when a trickle charge is made, which makes them unsuitable for use in some solar lights.If you\'re going to use the NiMH battery, make sure your solar lights are used to charge them.Li-Ion batteries are becoming more and more popular especially in solar and other green applications.They are about twice the energy density of NiCads, almost do not require maintenance, and are safer for the environment.The downside is that they tend to have shorter life than NiCad and NiMH batteries and are sensitive to extreme temperatures.However, ongoing research into this relatively new type of battery may reduce or solve these problems.