Ubuntu not respecting PrimaryBattChargeCfg in insipron 5559

Hi, I'm using KUbuntu 19.04 in my dell 5559 service tag  and recently upgraded bios to  BiosVer=1.5.2.

When I run

sudo /opt/dell/dcc/cctk --primarybatterycfg

I get 

PrimaryBattChargeCfg=Custom:50-85

But if I plug my charger,  the battery fills up to 100%.
I've installed command-configure_4.2.0-553.ubuntu16_amd64.tar.gz

What could be the problem?