We have started to see an increase in Lenovo Laptops with various power issues, such as
- Charging while off but not powered on. 
- Intermittent charging. 
- Will not charge once the battery completely discharges. 
These are just a few examples.
The first troubleshooting step should be the following.
- Power down the computer completely. 
- Remove the power plug from the computer. 
- Hold the power button for 30 full seconds. 
- Plugin the power supply and verify that it is charging. 
- Please turn on the computer and verify that it is still charging. 
These steps have remedied most of the charging issues that we have seen.
