Compact EV Charge Planner
Charging time (AC & DC), energy needed and range added for a compact city EV — taper-corrected.
City EVs with 25–35 kWh packs (Tiago EV-class) live happily on 3.3 kW home charging — a full overnight charge covers a week of city errands. Plan top-ups around your actual daily km.
DC charging tapers sharply above 80% SoC — the last 20% can take as long as the previous 50%. Fleet practice: fast-charge to 80% on route, balance to 100% on AC overnight only when the route demands it.
Engineering estimate from published standards and typical equipment data. Site conditions, equipment datasheets and measured data govern the real result — confirm with a qualified engineer.
Use the free Compact EV Charge Planner online — Charging time (AC & DC), energy needed and range added for a compact city EV — taper-corrected. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Compact EV Charge Planner
City EVs with 25–35 kWh packs (Tiago EV-class) live happily on 3.3 kW home charging — a full overnight charge covers a week of city errands. Plan top-ups around your actual daily km.
How to use Compact EV Charge Planner
- 1Confirm pack size and consumption for your vehicle (presets provided).
- 2Set current and target charge percentages.
- 3Read energy needed, AC hours, DC minutes and the range you'll gain.
Why use Compact EV Charge Planner?
- ✓Taper-corrected DC times — not the naive kWh ÷ kW fantasy
- ✓AC and DC answers side-by-side for trip and depot planning
- ✓Range added and total range at target charge
- ✓Vehicle-class presets with honest consumption defaults
Frequently asked questions
How long does EV charging really take?+
AC: energy needed ÷ (charger kW × 0.9). DC: the same ÷ (peak kW × ~0.8) because charging tapers above ~60% state of charge. A '30-minute' 30→80% claim becomes 50+ minutes if you push to 95% — the calculator models the taper so plans survive reality.
Why does DC fast charging slow down above 80%?+
Battery protection: as cells fill, the BMS cuts current to prevent lithium plating and heat. The last 20% can take as long as the previous 50%. Road-trip practice: charge 20→80% and drive — chasing 100% at a DC stall wastes both time and stall availability.
What charging speed do I need at home?+
Daily km × Wh/km ÷ overnight hours. A 50 km/day commuter needs barely 1 kW — a regular socket suffices; a 200 km/day fleet car wants 7–11 kW. Oversizing home AC charging is the most common unnecessary EV expense.
How accurate are the range numbers in the Compact EV Charge Planner?+
They follow your consumption input — which is the honest variable. Use your car's lifetime average from the trip computer (city ≈ brochure, highway +15–25%, winter +20–30%). With a real Wh/km figure, the range math is exact arithmetic.
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