Today I got to fixing the known issue with some laptops only being 
able to boot when powered from AC and not from the battery.
 Before I applied the working solution 
(editing /etc/default/grub to include 
```
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash dis_ucode_ldr"
```
I decided to install the newest available kernel,
as some people reported that alone helped them.