Any harm if battery full and still connected to USB wall charger?

[Cromagnon]

Sorry if it's a silly question. I hook the GN to the USB wall charger every night. I don't think it need the whole night to recharge to full. However, I have no intention to wake up in the middle of the night to disconnect the charger.

I am still curious to know about the technical implication of leaving the phone connected to the wall charger while it is already fully charged. Thanks in advance for any clarification.

 

[Petrah]

No. It should stop charging when it gets full.