When I plug the power cable into my Lenovo laptop, it slows down, the CPU speed drops. I've taken my laptop to tech support several times, but nothing. Can you help me
![T480 charging issue. Red light is showing but laptop is not charging. Sometimes it gets opened and gives error message- "The connected AC adapter has a lower wattage than the recommended model T480 charging issue. Red light is showing but laptop is not charging. Sometimes it gets opened and gives error message- "The connected AC adapter has a lower wattage than the recommended model](https://i.redd.it/zmtd2l8h0zh51.jpg)
T480 charging issue. Red light is showing but laptop is not charging. Sometimes it gets opened and gives error message- "The connected AC adapter has a lower wattage than the recommended model
![battery - Why is my laptop not charging? The led indicater does not light up but the laptop thinks it plugged in - Super User battery - Why is my laptop not charging? The led indicater does not light up but the laptop thinks it plugged in - Super User](https://i.stack.imgur.com/57BlV.jpg)