How to choose the charger？

To choose a charger, start by looking at the charger's voltage and amperage output, as these need to match with the device's power requirements. Make sure that the charger is suitable for the device's battery type, as it will be marked on the battery or the charger's packaging. Look for safety features, like a thermal overload switch, or safety certifications, such as from Underwriters Laboratories. Additionally, consider what kind of ports the charger has, such as wall plugs, car plugs, or USB plugs.