Is your charger actually fast charging your phone? Find out in seconds.
FastCharge Checker is the only tool you need to verify your charging speed in real time — whether you're using a fast
charge adapter, a speed charge cable, a USB-C power brick, or a wireless pad. Stop trusting charger labels. See the
real numbers.
⚡ REAL-TIME FAST CHARGE DETECTION
FastCharge Checker reads your device's actual power intake every second and classifies it instantly:
• ⚡ Super Fast Charge — Maximum power delivery detected
• ✅ Fast Charge — Above-standard speed confirmed
• 🔵 Normal Charge — Standard charging rate
• 🐢 Slow Charge — Below expected speed (bad cable? low-power adapter?)
Know exactly what your charger is doing the moment you plug in.
📊 LIVE CHARGING DASHBOARD
Everything about your battery, at a glance:
• ⚡ Live charging speed — classified and displayed in real time
• 🔋 Battery level with animated visual indicator
• ⏱️ Estimated time to full charge — updated dynamically as speed changes
• 🌡️ Battery temperature — with color-coded overheating alerts
• ⚡ Voltage (mV) — see how much power your charger actually delivers
• ⚡ Current (mA) — measure the real amperage flowing into your battery
• 📈 Live sparkline graph — visualise charging speed over time in your session
🕓 CHARGING SESSION HISTORY
Every session. Every detail. Logged automatically:
• Start and end battery percentage per session
• Peak charging speed reached during the session
• Average charging speed across the session
• Total duration of each charging session
• Full session history so you can compare chargers and cables over time
🧠 SMART BATTERY TIPS
Science-backed advice to protect your battery and get the most from fast charge:
• How to get the best speed charge performance from your adapter
• Why fast charging generates heat — and how to manage it
• The 20%–80% charging rule to preserve long-term battery capacity
• When slow charging is actually better than fast charging
• How cable quality directly affects your charging speed
🔒 100% PRIVATE — NO DATA COLLECTED
FastCharge Checker works entirely offline. It reads only the battery information your Android system provides
natively. No account. No sign-up. No data sent anywhere. Everything stays on your device.
⚙️ COMPATIBLE WITH ALL ANDROID CHARGERS
FastCharge Checker works with every Android charging standard — USB-C Power Delivery, Qualcomm Quick Charge, standard
5W adapters, and everything in between. No root access required.
WHETHER YOU ARE:
• Suspecting your fast charge adapter stopped working at full speed
• Comparing two cables to find which delivers the best speed charge
• Checking if your wireless charger is really fast charging
• Monitoring battery temperature during an intensive charging session
• Simply curious about what's happening inside your battery right now
.FastCharge Checker gives you the answer instantly.
Download FastCharge Checker — because "fast charge" on the box should mean fast charge in reality.