Model : M7350

Hardware Version :

Firmware Version :


I'm hoping someone can help me with this question. I would like to keep my TP-LINK M7350 4G mobile wi-fi device continuously plugged in. I checked the user manual and haven't found anything against doing this, but I'm not sure whether there's a hazard of over-heating or damaging the battery long-term.

Any advice/help would be much appreciated!
Thank you,