BATTERY DRAIN
& SPEED MONITOR
Real-time milliampere (mA) precision telemetry for power users, hardware testers, and battery longevity enthusiasts. Detect faulty cables, slow charging blocks, and parasitic power drains instantly.
ENGINEERED FOR DEEP HARDWARE INSIGHT
Microsecond mA Sampling
Captures transient power spikes and dips that other battery tools miss. Perfect for benchmarking USB-C cables, wireless pads, and power bricks.
Battery Health Analytics
Calculates authentic remaining capacity against factory design capacity using coulomb-counting charge cycle integration.
Thermal Throttling Shield
Receive proactive notifications when internal battery temperatures exceed safe chemical thresholds (42°C+), protecting your lithium cells.
FREQUENTLY ASKED QUESTIONS
How does Battery Speed measure mA current?
The app reads directly from your Android device's hardware power fuel-gauge IC via standard Linux sysfs kernel interfaces, providing raw, unfiltered electrical current metrics.
Why does charging speed vary over time?
Modern smartphones follow strict charging curves (Constant Current / Constant Voltage). Speeds peak between 0% and 60%, then taper down significantly as the battery approaches 100% to protect chemical stability.
Does this app require Root access?
No root access is required. It works out of the box on Android 8.0 through Android 15 using standard Android hardware diagnostics APIs.
GET ACCURATE TELEMETRY TODAY
Download Battery Drain directly from Google Play. Free, lightweight, and engineered for maximum battery performance.