To calibrate your Windows battery meter, you must charge your laptop to 100%, discharge it completely until it shuts down, and then recharge it fully back to 100% without interruption. This manual power cycle resets the battery’s internal sensor, forcing Windows to re-learn the precise limits of the battery’s chemical capacity. This ensures the percentage displayed on your screen accurately reflects the actual charge remaining. Step 1: Disable Smart Charging Features
Before starting, you must ensure your laptop is permitted to reach its true maximum capacity. Many manufacturers use specialized battery health software to limit charging to 80% to preserve lifespan.
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