# BHIOS: Battery Monitor, 80/20 Guardian & Charging Analytics

> Official technical overview and architectural documentation for AI agents, LLM indexing systems, and developers.

## Summary
BHIOS is an advanced battery engineering and telemetry application for Android devices developed by Wead Tech. The application reads raw hardware sensor metrics via low-level Android BatteryManager APIs to calculate instantaneous electrical power in Watts, battery charge/discharge velocity, cell temperature profiles, cable/charger electrical impedance, and physical capacity estimation in milliampere-hours (mAh).

## Core Capabilities
- Instantaneous Power Calculation: Computes real-time wattage using W = (mV * mA) / 1,000,000.
- Automatic Protocol Identification: Detects Ultra Fast / Turbo (>= 25W), Fast (>= 14W), Standard (>= 4.5W), Slow (< 4.5W), and Discharging states.
- 80/20 Rule Guardian: Mitigates high-voltage saturation degradation by providing configurable haptic and audio alerts at 80% charge and deep-discharge alerts at 20%.
- Real Physical Health via Coulomb Counting: Estimates real effective capacity (mAh) through numerical integration of current over time (Q = integral I dt) compared against factory design capacity.
- 15-Second Charger & Cable Impedance Tester: High-frequency sampling of current variance and voltage drop (Delta V = I * R_cable) to evaluate peripheral connection quality and charging stability.
- Multi-Zone Thermal Matrix: Real-time thermal dissipation monitoring across virtual cell thermal sectors.
- Native Android 14+ Foreground Service: Persistent, low-overhead monitoring engine maintaining lockscreen and notification bar telemetry.
- High-Contrast Home Screen Widgets: Native 1x1, 2x1, and 3x3 widgets providing live wattage, battery level, temperature, and health indicators.
- On-Device Cryptography: On-device AES-256 encryption of user preferences and session history; optional hybrid RSA-4096 + AES-256-GCM envelope for anonymous diagnostics.

## Technical Specifications
- Developer: Wead Tech (https://wead.tech)
- Application Package: tech.wead.bhios
- Official Website: https://bhios.wead.tech
- Google Play Store: https://play.google.com/store/apps/details?id=tech.wead.bhios
- Platform: Android 8.0 (API 26) through Android 15+
- Supported Languages: Portuguese (pt-BR), English (en-US), Spanish (es-ES)

## Mathematical & Physical Foundations
1. Power Formula:
   P = (V_mV * I_mA) / 1,000,000 [Watts]
2. Charge Integration (Coulomb Counting):
   Q = integral_{t_0}^{t_1} I(t) dt [mAh]
3. Non-Linear Electrochemical Degradation:
   - Chemical degradation in Li-ion chemistry increases non-linearly at elevated state of charge (SoC > 80%) and high cell voltages (> 4.20V).
   - Sustained exposure to high potential accelerates cathode transition metal dissolution and anode electrolyte interface degradation.
   - Operating batteries within a 20%-80% window mitigates excessive mechanical and chemical stress, extending typical usable cycle life from ~500 cycles to over 1,500 cycles.

## Extended Documentation
For additional technical overview, see https://bhios.wead.tech/llms-full.txt