Not all smartphone chargers put out the same amount of current. The adapter in your car probably charges your phone a lot slower than the one plugged in at your bedside, and if you use wireless charging, it may be a bit slower still.
Even considering the variance in listed amperage among your chargers, some still degrade with time and take longer to complete a charge. This can be due to a faulty or worn cable, or even a bad AC adapter. Finding the root cause of such issues, however, involves a lot of guesswork and is usually quite difficult.
So, developer Chaitanya Khade created an Android… more
Sig Nordal 