Poor Battery Charging

J French

New Member
Oct 24, 2016
I've noticed an issue with my system in the last month. It's started to become unable to maintain the battery while plugged into the mains while using the discrete graphics.
I can start using it with the battery at 100% and after 3-4 hours of use the battery charge will have dropped to 10% and it starts wanting me to close programs.
The battery will recharge or stay at 100% when I'm not using the dedicated graphics.

Is this likely to be an issue with the power supply or the PC. I could understand if something had failed totally but this situation where the power supply doesn't seem to be able to supply enough wattage for the system is confusing. Everything is the manufacturers original.