How to check battery health on Android
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Some Android phones show battery health in Settings > Battery > Battery Health. Samsung phones do not natively show battery health, but you can dial *#*#4636#*#* and tap Battery Information. Alternatively, use third-party apps like AccuBattery or Ampere from the Play Store. These apps track charging cycles and estimate battery health over time. A healthy battery should retain at least 80% of its original capacity after 500 charge cycles.