My HP G62 laptop takes days to charge to about 60%. I uninstalled and reinstalled the Battery drivers in Device Manager and discharged the battery until it no longer booted. I then plugged in the HP power supply (confirmed 19V with a meter) and the small battery charge indicator in Windows 10 showed that a charge was in progress for about 10 seconds before stopping and showing the actual charge value - currently 26% after 12 hours of charge. I then tried an alternative power supply (not HP) with a compatible connector and this gave the same charge indication and it charges very slowly - currently 27% after a further one hour. I would be grateful for any advice as I have another Samsung laptop with the same problem.