Fast Charging Explained: What 45W, 80W and 100W Really Mean
Phone makers love big charging numbers: 45W, 80W, 100W and more. But what do these figures actually mean when you are standing at the socket with 10% left? Here is a plain-language guide to fast charging in 2026, and how to read the numbers on a spec sheet. Watts in short The wattage on the box is the maximum power the phone can accept from a compatible charger. Higher wattage means the battery can fill faster, but only for part of the charge. Phones charge quickly from low battery up to roughly the middle, then slow down to protect the battery as it gets full. That is why the last 20% always seems to take longest. Why big batteries need fast charging Batteries have grown a lot. Thanks to silicon-carbon cells, 7,000 mAh is now common and some phones reach 10,000 mAh or more. A bigger battery lasts longer, but it also takes longer to fill. That is where fast charging matters most. A few examples from the mobilkanal catalog: Honor Win: 10,000 mAh battery with 100W charging. Xiaom...