iPhone Battery Draining Fast? 12 Proven Fixes (2026 Guide)
Is your iPhone battery draining faster than it used to? Whether it's dropping 20% while sitting in your pocket or dying by mid-afternoon, fast battery drain is one of the most common iPhone problems — and most of the time you can fix it yourself in a few minutes. This guide walks through 12 proven fixes, from quick settings tweaks to knowing exactly when a battery replacement is the real answer. First, check your battery health Before changing any settings, find out whether the problem is software or the battery itself. Go to Settings → Battery → Battery Health & Charging and look at Maximum Capacity . Above 85% – the battery is fine; your drain is almost certainly a software or settings issue (keep reading). 80–85% – noticeable wear; optimising settings will help, but you'll feel the difference. Below 80% – iOS considers the battery worn. If you also see a "Service" message, a battery replacement is the real fix. Fi...