Dell G15 5530 – Extreme Lag and Fast Battery Drain Without Charger (Tried All Solutions)

Hi everyone,
I’m using a Dell G15 5530 laptop with the following specs:

• Processor: 13th Gen Intel(R) Core i5-13450HX (10 Cores, 16 Threads)

• Graphics: NVIDIA GeForce RTX 3050 6GB + Intel UHD Graphics

The main issue:
My laptop lags heavily when running on battery — the mouse cursor barely moves, scrolling is slow, and even basic tasks become almost impossible. But when I plug in the charger, everything works fine.

Also, the battery drains extremely fast, from 100% to 5% in under 2 hours with normal use. Sometimes it even shuts down suddenly at around 12%. I checked the battery health (via Dell diagnostics), and it shows no problem.

I’ve already tried many solutions, including:

• Changing power plan settings (Minimum processor state to 100%)

• Updating all drivers (Intel and NVIDIA)

• Reinstalling GPU drivers

• Completing 3 full charge-discharge cycles as advised by Dell assistant

• BIOS and Windows updates

• Battery report checked (shows no warning)

Despite all this, the issue is still there. I feel like my NVIDIA GPU isn't working properly on battery (Code 43 error appears sometimes), and performance drops badly when unplugged.

Has anyone faced a similar issue with this model or setup? Any working solution would be really appreciated!

Thank you.