English | 日本語
An AI skill for electric vehicle ownership — charging strategy, battery health, range management, EV-specific maintenance, home charging setup, and buying guidance for new and used EVs.
The EV Assistant addresses the questions internal-combustion experience does not prepare you for: how to charge for battery longevity, why range varies so much, what maintenance an EV actually needs (and no longer needs), how to evaluate a used EV's battery, and how to plan road trips around charging networks. It covers battery electric vehicles (BEVs) and, where noted, plug-in hybrids (PHEVs).
Audience: EV shoppers, new EV owners, long-time owners optimizing battery life, and technicians transitioning from ICE work.
- Charging — explain AC Level 1/2 vs. DC fast charging, connector standards (CCS, NACS, CHAdeMO, Type 2), charging curves and why the last 20% is slow, and public network practicalities
- Home charging — help plan a Level 2 installation: circuit sizing, load calculations to discuss with an electrician, hardwired vs. plug-in units, smart charger features, and off-peak tariff strategies
- Battery health — explain degradation mechanisms (calendar aging, cycling, heat, high state of charge), daily charge-limit strategy (e.g., 80% for NMC daily use, LFP differences), and how to interpret a battery state-of-health reading
- Range — explain real-world range factors (temperature, speed, HVAC, terrain, payload), winter range loss, and efficiency driving techniques
- Trip planning — charging-stop strategy, buffer planning, and charging-speed-aware routing principles
- Maintenance — EV-specific schedules: tires (wear faster), brake fluid, cabin filter, coolant loops for battery/motor, and what disappears (oil changes, exhaust, transmission service)
- Used EV buying — battery health assessment, warranty transfer, recall history, and price/degradation tradeoffs
- Safety awareness — explain high-voltage system boundaries and why orange-cable systems are professional-only territory
- PHEV specifics — dual maintenance needs, engine-maintenance-still-required caveats, and optimal usage patterns
I just bought my first EV, a 2023 Hyundai Ioniq 5. What daily charging
habits will maximize battery life?
Why does my EV lose 30% of its range in winter, and what can I do about it?
I'm looking at a used 2019 Nissan Leaf with 60,000 miles. How do I assess
battery health before buying, and what degradation is normal?
Help me plan home charging: I drive 50 miles a day, my panel is 100A, and
my utility has a cheap overnight rate. What should I ask my electrician?
What maintenance does my EV actually need in the first 100,000 miles,
compared to a gas car?
- Identify the vehicle and battery chemistry if known (NMC vs. LFP changes charging advice significantly).
- Describe your usage. Daily mileage, home charging availability, climate, and trip frequency.
- For buying decisions: ask for a model-specific battery and warranty checklist before viewing.
- For charging setup: gather your electrical panel details and utility rate plan, then ask for an electrician-briefing summary.
- For range or efficiency issues: report conditions (temperature, speed, HVAC use) so the assistant can separate normal variance from a fault.
- For anything involving the high-voltage system: use this skill to understand the issue, then take it to an EV-qualified technician.
- High-voltage repair is out of scope. Battery pack, inverter, and orange-cable work requires training and equipment; the assistant explains concepts but will not walk through HV repair procedures.
- Charging networks change fast. Station availability, pricing, and connector rollouts (e.g., NACS adoption) evolve; verify with live network apps.
- Battery advice is chemistry- and model-specific. Follow your manufacturer's charging guidance where it conflicts with general rules.
- Electrical installation requires a licensed electrician. The assistant helps you prepare informed questions, not bypass professional installation.
- Software-defined behavior varies by firmware version — features and charging behavior can change with OTA updates.
- Used Car Inspector — general used-vehicle inspection to combine with EV battery assessment
- Vehicle Maintenance Planner — schedule the EV maintenance that does remain
- Vehicle Troubleshooting — 12V-system and chassis symptoms shared with ICE vehicles