Question

a device charge so much what happends​

Answer 1

Answer:

If you are using a latest smartphone from a reliable brand, nothing much happens if you charge the phone overnight or too much. Older devices had batteries made of Nickel. It had issues if you did not charge it properly. Most modern devices have in-built safety components and integrated chips. So when it gets fully charged, the phone can use the charging as the primary battery and save the battery.

The only major concern would be overheating of the phones, which then varies with the brand and type of mobile that you are using. Major heating up can result in drastic conditions to the mobile and may even be dangerous.

Answer 2

Answer:

Probably it will damage your device charge or the phone, battery itself.