How to Check and Improve Your Android Battery Health

Every rechargeable battery gradually loses its ability to hold a charge over time. After a couple of years of daily charging, your Android battery may hold only 80-85% of its original capacity — meaning it runs out faster than it used to. Knowing your battery health helps you decide whether a battery replacement makes sense.

Unlike iPhones, which have a standardized "Battery Health" percentage in Settings, Android battery health information varies by phone brand. Samsung phones show battery health in the Samsung Members app or via a built-in diagnostic. Google Pixel phones show it in Settings. Some brands bury it in hidden service menus.

For Samsung phones (the most common Android brand), the Samsung Members app — available free in the Galaxy Store or Google Play — includes a diagnostic tool that reports battery health as a percentage. 100% is new. Most phones remain above 95% for the first year, then gradually decline. Below 80%, you may notice a lot shorter battery life between charges.

For all Android phones, Google Play services also store battery health information accessible through some third-party apps like AccuBattery, which tracks charge cycles and estimates battery wear over time.

Beyond checking health, there are practical steps to slow battery aging: avoid often letting the phone drain to 0%, keep it away from extreme heat (a hot car in summer causes significant battery damage), and avoid keeping it at 100% charge for extended periods. Charging to 80-85% and unplugging early is better for long-term battery health than charging to 100% overnight.

When the battery degrades a lot, most Android phones can have the battery replaced. Manufacturer service centers, Best Buy Geek Squad, and local phone repair shops can usually do it for $30-80 depending on the phone model.