Comment by bityard

You can leave a phone plugged in all the time with no issues, the same way you can do the same with a laptop or any number of the other ubiquitous USB-chargeable things these days. The only time it's an issue is if the device was _extremely_ poorly designed.

Some good phones will even notice that they are plugged in all the time and drop the charge level to 80%, where most batteries are happiest to stay for long periods of time.