How to Check Your Laptop Battery Health in Windows — and Know When It's Time to Replace It
Battery Health and Management Is your laptop not lasting as long as it used to on a single charge? Does it die unexpectedly even when the battery indicator shows 30%? You're not alone — and the good news is that Windows has some surprisingly powerful built-in tools to tell you exactly what's going on, no extra software required. In this guide, we'll cover three ways to check your laptop battery's true condition: the hidden powercfg battery report, the BIOS battery status, and the new battery health feature built into Windows 11. By the end, you'll know whether your battery needs a tweak, a setting change, or a replacement. Why Laptop Batteries Degrade Laptop batteries are lithium-ion cells, and like all lithium-ion batteries they have a finite number of charge cycles. A charge cycle is one full discharge and recharge — roughly speaking, using your laptop from full to empty and back again counts as one cycle. Most laptop batteries are rated for somewhere bet...