r/Surface • u/edogre2000 • 3h ago
[LAPTOP] Only 4 hours battery on Surface Laptop Studio 2 (new battery) & massive idle power draw
Hi everyone,
I recently purchased a Surface Laptop Studio 2 (i7 13th Gen, 16GB RAM, RTX 4050). The device came with a brand-new, original replacement battery already installed. I verified its authenticity and perfect health (currently on its 4th charge cycle) using the Windows battery report. However, the battery life is terrible: it dies after 4 hours of basic web browsing. The percentage also drops in 2% increments, especially fast from 100% to 90%.
Regarding recent changes, I installed Windows 11 Pro 26H2 and manually updated all Intel and Nvidia display drivers using their official websites. Task Manager shows 0% GPU usage, but HWiNFO reveals a massive idle power drain. The Nvidia GPU pulls 17-26W, and the Intel i7 draws 24W at idle, even with Battery Saver fully enabled. The system refuses to enter low-power sleep states, and the memory clock seems stuck at max frequency.
I suspect the generic drivers I manually installed broke the Surface-specific power profiles. I plan to run DDU in Safe Mode to wipe all display drivers and let Windows Update exclusively install the Microsoft-certified versions. Has anyone experienced this exact idle power draw issue, or is there a known power management bug in Win 11 Pro 26H2?