Never leave a charger in outlet without phone. Here are the top 6 reasons why. Full article 
Why You Should Unplug Your Phone Charger. Even when not charging a device, phone chargers draw power—about 1.5 kWh per year. Multiply that by several chargers,
and it adds up, both in cost and environmental impact. Fire Risk Low-quality chargers can overheat and pose fire hazards, especially if left covered or
plugged in long-term. Higher Bills While one charger costs pennies per year, multiple always-on chargers increase your electricity bill unnecessarily.
Energy Waste Idle chargers waste energy. Unplugging them is a simple way to reduce carbon footprint
and support sustainability. Takeaway: Unplug chargers when not in use. It’s safer, saves energy, and lowers your bill
