A solar charger is a device that converts sunlight into electrical energy, allowing users to charge electronic devices like smartphones, tablets, and batteries. It typically consists of solar panels that capture sunlight and convert it into usable power, making it an eco-friendly alternative to traditional chargers. These chargers are portable and often designed for outdoor use, making them ideal for camping, hiking, or travel. Many solar chargers come with built-in batteries to store energy for later use, ensuring that devices can be charged even when sunlight is not available.