WattMate: Charging Power Meter

WattMate is the ampere meter and charging meter that shows you exactly what's happening when your phone charges. See real charging power in Watts, live voltage, current, and temperature — all updating in real time.

⚡ CHARGING POWER METER
Know your actual charging wattage, not just a percentage bar.

- Live charging power display in Watts (W)
- Ampere meter: charging current in milliamps (mA)
- Battery voltage in volts (V)
- Charger test: find your fastest charger and USB cable combination
- See if your phone is fast charging or trickle charging
- Charge speed test to compare adapters, cables, and wireless chargers

🌡 TEMPERATURE & BATTERY HEALTH
Keep your battery healthy and out of the danger zone.

- Real-time battery temperature monitoring
- Battery health status (Good / Fair / Poor)
- Charging state: AC, USB, Wireless, or unplugged
- Temperature alerts to protect against overheating

📊 LIVE GRAPHS
Watch your charging stats over time, not just a snapshot.

- Real-time power graph while charging
- Current and voltage trend over session
- Spot fluctuations caused by charger, cable, or background apps

🔍 WHAT AFFECTS YOUR CHARGE SPEED?
Your charging speed depends on many real-world factors:
- Charger type (AC adapter, USB-C, wireless)
- USB cable quality
- Phone model and chipset
- Apps running in the background
- Screen-on vs screen-off state
- Current battery level (charging slows near 100%)

WattMate reads directly from your device's battery controller for accurate, science-based readings — no guesswork, no false claims.

WHY WATTS MATTER
Most ampere apps show you milliamps (mA). WattMate goes further: Power (W) = Voltage × Current. That means you see the true charging power, which is what actually determines how fast your battery fills up. A 5V/2A charger and a 9V/1.5A charger can both show ~2000mA but deliver very different charging speeds. WattMate shows you the difference.

🧪 BATTERY TESTER & CHARGER CHECKER
Use WattMate as a battery tester and charger checker:
- Test any charger or cable in seconds
- Compare charging speed between wall adapters
- Check if a cable is limiting your charge speed
- Verify wireless charger output

CLEAN & SIMPLE
No bloated features. No fake battery "cleaners" or "optimizers". WattMate does one thing: give you accurate, real-time charging and battery data that you can actually trust and act on.

Works on Android phones and tablets. Results depend on hardware support — most modern Android devices are fully supported.