Want to check your Android battery health but don’t want to root your phone? Battery health determines how much charge your battery can hold compared to when it was new.
Here are 5 easy methods to check battery health, capacity, and cycles without rooting your Android device.
Method 1: Built-in Battery Settings
Samsung Phones:
- Phone app → Dial
*#0228# - Shows battery status and health percentage
- Or Settings → Battery and device care → Battery → More battery settings
OnePlus Phones:
- Settings → Battery → Battery health
- Shows current capacity vs original capacity
Xiaomi/Redmi Phones:
- Settings → Battery → Battery health
- Or dial
*#*#6485#*#*in phone app
Method 2: Secret Dialer Codes
Universal Codes (Work on Most Phones):
*#*#4636#*#*→ Battery information*#0228#→ Battery status (Samsung)*#*#6485#*#*→ Battery info (Xiaomi)
What These Show:
- Battery health (Good/Poor)
- Current voltage
- Temperature
- Charging status
Method 3: AccuBattery App (Most Accurate)
Installation:
- Download AccuBattery from Play Store
- Grant permissions for battery monitoring
- Use phone normally for 3-7 days
- Check Health tab for detailed info
What AccuBattery Shows:
- Battery capacity (mAh remaining vs original)
- Health percentage
- Charging cycles completed
- Battery wear over time
- Estimated battery life remaining
Method 4: CPU-Z App
Steps:
- Install CPU-Z from Play Store
- Open app → Battery tab
- View battery health, voltage, temperature
- Shows charging technology and capacity
Information Available:
- Health status (Good/Cold/Overheat/Dead)
- Current charge level
- Voltage readings
- Battery temperature
Method 5: Ampere App
Usage:
- Download Ampere from Play Store
- Open app → Battery info
- Shows health, voltage, temperature
- Charging/discharging rate in mA
Understanding Battery Health Results
Health Percentages:
- 90-100%: Excellent (like new)
- 80-89%: Good (normal wear)
- 70-79%: Fair (consider replacement soon)
- Below 70%: Poor (replace immediately)
Battery Capacity:
- Original capacity: What battery held when new
- Current capacity: What it holds now
- Health = (Current ÷ Original) × 100
Charging Cycles:
- 1 cycle = 0% to 100% charge
- Most batteries last 300-500 cycles
- After 500 cycles, capacity drops significantly
Signs of Poor Battery Health
Performance Issues:
- Battery drains very fast
- Phone shuts down at 20-30% charge
- Takes very long to charge
- Gets hot while charging
- Swollen or bulging battery
Usage Patterns:
- Can’t last half a day with normal use
- Needs charging 3+ times daily
- Percentage jumps (50% to 20% suddenly)
When to Replace Battery
Replace if:
- Health below 70%
- Phone is 2+ years old with heavy usage
- Battery physically swollen
- Frequent unexpected shutdowns
- Charging takes 4+ hours
Don’t Replace if:
- Health above 80%
- Phone less than 1 year old
- Issues might be software-related
Improve Battery Health
Best Practices:
- Charge between 20-80% regularly
- Avoid overnight charging
- Use original charger only
- Keep phone cool while charging
- Don’t let battery reach 0% frequently
Avoid These:
- ❌ Charging to 100% daily
- ❌ Using phone while fast charging
- ❌ Exposing to extreme temperatures
- ❌ Using cheap third-party chargers
Battery Calibration (If Readings Seem Wrong)
Steps:
- Drain battery to 0% (phone shuts off)
- Charge to 100% without interruption
- Keep charging 2 hours after reaching 100%
- Use phone normally and repeat once more
Note: Modern phones rarely need calibration.
Professional Battery Testing
Service Center Testing:
- More accurate than apps
- Tests under load conditions
- Checks for hardware issues
- Provides replacement recommendations
Most battery health apps are quite accurate for general assessment. Use AccuBattery for the most detailed analysis over time.