Lithium batteries power many everyday devices, but damage, overheating, poor charging practices, and manufacturing defects can increase the risk of fire. Learn which lithium batteries are dangerous and what warning signs users should never ignore. International Fire and Safety Journal explores common battery hazards, factors that can contribute to thermal runaway, and practical safety considerations for handling lithium-powered devices. From smartphones and laptops to power banks and electric vehicles, this guide explains the risks in simple terms and helps readers understand what to watch for. Explore the complete article to learn more about lithium battery safety and recognize potential problems before they become serious.