I reinstalled Win 10

Now the battery only charges occasionally -- seems like when the battery gets low enough.  

Often I connect the charging cable and the battery charge lights briefly illuminates then turns off.  What I expect is for the light to then come back and stay on, while the battery charges until reacing 100%.  . However, in this case the tray icon indicates "plugged in", but the battery is not charging.  Also, when I turn off the computer the battery charge  iindicator light briefly illuminates to indicate the computer does, in fact, recognize that the laptop is plugged in.  

 

I have tried several remedies such as turn off computer, taking battery out, pressing power button, then putting all back in, but still, no charge.  

I should say that the battery does not discharge when plugged in.  Even though the battery is not charging, I can use the computer all day long.  It will remain partially charged all day long.  

All these symptoms happen whatever AC adapter I use.  I have several chargers to use.

I have latest Bios installed (A22).  The Dell site does say the this computer is not compatible with Win 10.  What am I supposed to make of that? What does Dell expect the 6320 series to not be able to do with Win 10?