Notice you're putting it in storage there too. When charging, use the balance charge option rather than fast charge as it will charge both cells in the pack more evenly.
If it's the same software as my charger (looks it) then if you press the INC button in a charge program then it will flip to the individual cell voltage, pres again to go back to main screen.
I've recently come back after 30 years away too so feel your pain.
