T4U for Tesla vs SentryGuard

Finally know the real condition of your Tesla's battery. Not the charge percentage. Not a figure inferred from displayed range. State of Health — how much capacity your pack has left compared to the day it left the factory. T4U is built by MyBatteryHealth, Europe's reference network for electric vehicle battery diagnostics. Over 70,000 batteries certified. MEASURED, NOT ESTIMATED Your car continuously reports the energy actually left in its pack. T4U reads that figure and derives your battery health from it. The vehicle's own computer does the measuring; we only translate. This works with the car parked and locked. You get a fresh reading every day without anything ever disturbing your vehicle. WHAT YOU GET - State of Health as a percentage, with an MBH grade from A to E - Current pack capacity in kWh, against its original capacity - Real-world range, calculated from your own data - Twelve-month degradation curve - Manufacturer warranty tracking: years, mileage, minimum State of Health - Battery chemistry, cell supplier, recommended charge limits - Maximum charging power and Supercharger compatibility - Live charge level, range and lock status - Home screen widget, current even while the car sleeps ADVANCED PACK DIAGNOSTICS Where a consumer app stops at a percentage, T4U goes down to cell level: - Voltage spread between the highest and lowest brick groups — the indicator that degrades before you lose any range - Thermal spread between modules, and the position of the hottest sensor - Internal pack resistance, measured while driving - Open-circuit voltage, and voltage per cell - Real cycle count, derived from lifetime energy consumed Each of these identifies a weak point by its number inside the pack. That is what lets you document a fault with a professional. YOUR BATTERY CARD Generate your score and share it. A social-ready card carrying your grade, your battery health, your mileage and the MyBatteryHealth certification. THE OFFICIAL MBH REPORT Issue a digitally signed battery health certificate, verifiable by QR code. A document recognised by automotive professionals, leasing companies and used car buyers — and the strongest argument you have when defending your Tesla's price at resale. WHAT T4U DOES NOT DO T4U has no permission to command your vehicle, and never asks for one. It will not wake it, unlock it or move it. No location data is collected. Distance is reconstructed from the odometer. Every figure on screen states where it came from and when it was measured. A number you cannot explain is worth nothing. T4U PREMIUM The subscription unlocks full cell-level diagnostics, weak point localisation inside the pack, twelve months of history, driving performance and unlimited sharing of your battery card. €1.99 per month or €14.99 per year. Terms of use: https://tesla-4u.com/en/privacy-legal/ Privacy policy: https://tesla-4u.com/en/rgpd/ T4U is an independent app published by VIA SAS. It is not affiliated with, endorsed by or sponsored by Tesla, Inc. Tesla, Model S, Model 3, Model X and Model Y are trademarks of Tesla, Inc.

Protect and monitor your Tesla with SentryGuard – the open-source, 100% free, and privacy-respecting security app. Designed specifically for Tesla owners, SentryGuard transforms your vehicle's Sentry Mode into a connected, responsive, and intelligent alarm system: receive instant push alerts and automatically trigger Sentry Mode camera recording the second an intrusion attempt is detected—even if Sentry Mode was turned off to save battery. --- OPEN-SOURCE PROJECT & COMMITTED TO SECURITY SentryGuard is not a commercial application. It is developed transparently and ethically: • 100% FREE: No hidden subscriptions, no in-app purchases, no ads, and no trackers. • COMMUNITY-FUNDED: The development and infrastructure of SentryGuard rely entirely and solely on user donations. • OPEN SOURCE: The application's code is public and auditable by anyone. You know exactly how your data is processed. • STRICT SECURITY: SentryGuard uses Tesla's official authentication protocol (Tesla OAuth). Your Tesla tokens are encrypted (AES-256) on our servers, and your session is kept in your phone's secure storage. --- COMPREHENSIVE FEATURES FOR YOUR VEHICLE • AUTO SENTRY MODE (Emergency Recording): Turned Sentry Mode off at home or work to save battery? When a door handle pull or breach attempt is detected, SentryGuard automatically wakes up and turns Sentry Mode ON to record the intruder on video. • REAL-TIME ALERTS: Get notified immediately of any suspicious event. Receive instant notifications on your phone or directly on Telegram via our dedicated bot. Every notification names the vehicle involved. • CRITICAL ALERTS: Break-in alerts ring even in Silent mode or Do Not Disturb. • ONE TONE PER ALERT: Pick from 5 tones (Sentry Siren, Tesla Horn, Danger Sonar…), with a different one per vehicle and per alert type. • PAUSE ALERTS: Silence Sentry alerts from 30 minutes to until tomorrow, from the app or right from the notification. Break-in alerts stay on. • STRAIGHT TO THE CAMERA: Tap an alert to open the Tesla app on the Sentry camera view of the vehicle. • ACTIVE DETERRENCE (Remote Horn & Boombox): In case of a confirmed intrusion attempt, scare away intruders by automatically triggering your Tesla's horn or sounds to alert bystanders. • ZERO BATTERY DRAIN TELEMETRY: Passive listening to Tesla's official telemetry stream with no constant polling and zero phantom drain at rest. • VIRTUAL KEY PAIRING: Securely associate a Tesla virtual key to send encrypted commands to your vehicle reliably and safely. • ALERT HISTORY: View a complete and detailed history of your vehicle's events at a glance, with filters for severity level (Critical / Warning). • SIMPLIFIED CONTROL: Enable or disable Sentry Mode or the intrusion alarm system with a simple gesture. • VISUAL COMFORT: A modern interface with automatic dark and light themes, and full support for French and English. --- HOW DOES IT WORK? 1. Log in securely via the official Tesla login page. 2. Configure your notification preferences (on your phone and/or Telegram). 3. Pair your Tesla virtual key by following our step-by-step guide. 4. Enable Auto Sentry and Break-in monitoring in your vehicle settings. 5. SentryGuard is now watching over your vehicle. SentryGuard is an independent project created for the community, by the community. Join us and give your vehicle the protection it deserves!