EV Battery Guide vs AutoMynded

EV Battery Guide is an independent educational tool for EV owners — built to help you actually understand the battery in your car. What's inside: • Open-Circuit Voltage (OCV) vs SOC curves — see your battery's true voltage behavior • DC fast-charging power curves — understand the CC→CV transition and why it slows down • BMS buffer visualization — your "100%" isn't really 100% • Capacity retention prediction — how much will be left in 5 or 10 years? • Cycle life vs depth-of-discharge — why shallow cycling lasts longer • Lithium plating risk heatmap — what to watch out for in cold weather • Winter range loss waterfall — where exactly does the range go? • Speed × temperature energy matrix — the dual cost of highway and cold • Cost-per-mile comparison — home charging, fast charging, and gas • 13 interactive professional charts — built on public cell datasets Coverage: 65 popular EV configurations across 7 distinct cell chemistries (LFP / NCA 2170 / NCA 18650 / 4680 / NMC / LiCoO₂), with chemistry-specific recommendations for each. Three languages: Full support for English, 中文, and 日本語. Switch anytime in-app. Privacy first: • No accounts, no email • No user data collection • No third-party analytics or ad SDKs • Your selected vehicle and language preference live only on this device Completely free: No subscriptions, no in-app purchases, no ads. All features are open from day one. Disclaimer: This app is not affiliated with any vehicle manufacturer. Vehicle model names are used solely to describe battery chemistry, parameters, and charging characteristics — a nominative fair use. All data is sourced from public cell data sheets, EPA filings, and peer-reviewed research.

Snap any car concern. AutoMynded's powertrain-aware AI tells you what it is, how urgent it is, and what to tell a mechanic. Right answer for gas, hybrid, or EV. Most car maintenance apps were designed before EVs went mainstream. They tell Tesla owners to "change the oil" and Bolt owners to "replace the spark plugs." AutoMynded knows what your vehicle actually has and what it doesn't. Every diagnosis branches on whether you drive gas, diesel, hybrid, plug-in hybrid, battery-electric, or fuel-cell, so the answer is right the first time. WHAT AUTOMYNDED DOES Photo diagnosis in seconds. Snap a warning light, a fluid spot under the car, a worn part, anything. Add an optional one-line note. AutoMynded returns a severity rating (urgent, soon, or informational), a plain-English explanation, and the verbatim paragraph to send to your mechanic when you decide to call one. Smart service receipt capture. Snap a service receipt and AutoMynded extracts the shop, date, mileage, line items, and total. Confirm the pre-filled fields and save. Your service history builds itself. Powertrain-aware maintenance schedule. The schedule generates from your vehicle's powertrain. EV owners get tire rotation every 5,000 miles (tighter than ICE), 12V auxiliary battery checks every three years (the most overlooked EV failure point), battery coolant intervals, and software update reminders. Gas owners get the standard oil, plugs, transmission, and filter intervals. Plug-in hybrids get both with adjusted timing because the engine cycles less. Mileage logger with the live IRS rate. Track business miles for tax season. Manual entry on free, GPS auto-track on Pro. Each trip snapshots the IRS rate at save time so prior trips don't drift if the rate changes mid-year. Annual AI summary, Pro. Pro users get a per-vehicle year-end narrative covering total miles, top spending categories, recurring themes from saved diagnoses, and what to plan for next year. Cached on your device so re-opening is free. EV-specific surfaces, free. Charging session log, battery range tracking with a Swift Charts trend line, and OTA software update history. Available on every BEV and PHEV vehicle profile, no Pro required. EV awareness is the differentiator, not a paywall. Multi-vehicle for households, Pro. Free is one vehicle. Pro is unlimited, perfect for the gas commuter plus the EV daily. POWERTRAIN COVERAGE Gas, Diesel, Hybrid (HEV), Plug-in Hybrid (PHEV), Battery Electric (BEV), and Fuel Cell (FCEV). Pick once at vehicle setup. Every Gemini call after that adapts. PRIVACY Your vehicles, photos, diagnoses, receipts, and service history live on your device. There are no AutoMynded servers. Photos and your vehicle's make, model, year, powertrain, and mileage are sent to Google's Gemini AI for the diagnosis or extraction call, then the response comes back to your phone and stays there. For the Pro Annual Summary, only aggregated yearly totals are sent, never individual records. You can review and revoke AI access in Settings any time. Not a substitute for professional service. AutoMynded helps you understand and document. Always consult a licensed mechanic, dealership, or manufacturer warranty for repair, safety, or warranty decisions. PRICING AutoMynded is free for one vehicle, five photo diagnoses per month, and five receipt extractions per month. Manual service entry, manual mileage entry, and EV-specific features are unlimited on free. Upgrade to AutoMynded Pro for unlimited diagnoses and extractions, multi-vehicle support, GPS-tracked mileage, and the annual AI summary. $4.99/month or $29.99/year (about 50% savings). Subscriptions auto-renew until canceled. Cancel anytime via iPhone Settings, Apple ID, Subscriptions. Privacy Policy: https://pub-3970a22e7da04af9ba2fa4ec1f1ad7b3.r2.dev/automynded/privacy-policy.html Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Built by Pearlcity LLC.