You leave your charger cell phone connected to the outlet even when not using? ENERGY without me realize.
But is it true? damage the cellular battery Or the charger himself?
Let's unveil this myth with real data and practical tips!

1. Does the charger spend energy when not in use?
The answer is: Yes, but very little.
🔌 How it works:
- Every charger has a small transformer that continues to consume energy even without the connected phone.
- This phenomenon is called “Standby consumption” or “energy vampire”.
💡 How much do you consume?
- An ordinary charger spends between 0.1W and 0.5W when it is only in the socket.
- That means About R$ 2 to R$ 10 per year If you stay all the time plugged.
I.e: It won't ruin your electricity bill, but it's not free 100% energy either.
2. Can this damage the cellular battery?
Good news: not directly.
A cellular battery It is only affected when the charger is connected to the device.
✅ Does not overload the battery (because there is no current being transmitted).
✅ Don't get hot as when it is in use.
But beware: Poor quality loaders can overheat even unused, so always prefer the originals or certified.
3. What if the phone is 100% and keep charging?
Then the story changes. cell phone Loading after reaching 100% can:
🔋 Reduce cell battery life (especially in older models).
⚡ Generate small energy waste (The charger is in a “maintenance” cycle).
Modern Tip:
- New cell phones (iPhone, samsung, etc.) have systems that Cut the load when they reach 100%.
- But the ideal is still disconnect when possible.
4. How to avoid unnecessary spending?
If you want to save energy and protect your cell phone:
✅ Plug when not using (or use a ruler with on/off button).
✅ Avoid generic chargers - In addition to spending more, they can be dangerous.
✅ Don't let the phone charging all night (unless use slow load mode).
5. Myths and Truths About Porters
🚫 “Charger in the socket spends like a light bulb” → Myth. Spends 100x less.
✅ “Old porters consume more” → True. Worn components are less efficient.
🚫 “Charger without cell phone gets warm” → Myth. Without loading, the heat is minimal.
Is it worth it?
If it is just for the economy, the impact is small.
🔌 Several standby devices (TV, computer, chargers) Together make a difference in the account.
🌱 Turning off is more sustainable - Multiply for millions of porters in the world!
That is: it is not urgent, but create the habit of taking off the outlet It is good for the pocket and the planet.
And you, do you usually leave the charger in the socket?
Have you ever thought about it?
♻️ Share this tip - A lot of people have no idea that even a simple charger consumes energy silently!