Here is one way you can do that. Some of you might already be aware of this, but a good way to save up power is through your cellphone charger. People usually charge their cellphones while sleeping and you might think that once the cellphone has been fully charged no power is consumed (your charger starts cooling off too). Well, you’re wrong.

Charlie at Nokia conversations wrote in his lastest article that

” normal Nokia chargers draw about 150mA power when just plugged in and not charging a device (when the charger is on standby). ”

Compared to having billions of cellphones and chargers out there, thats alot of wasted power. Therefore, its best to unplug your charger once your cellphone has been fully charged. According to the article, Nokia is working on new chargers that will produce zero waste..