⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-25)
🚗 EV Charging Time · NEC Article 625 · IEC 61851 Wallbox Sizing

78 kWh EV Battery Charging Time on 11.5 kW (240V 48A Hardwired Tesla Wall Connector)

Real-world charging duration (10–80%, 20–80%, and 0–100%), range added per hour, charging cost, and electrical circuit breaker sizing.

10% to 80% Charge Time5h 17m20%–80%: 4h 31m
Full 0% to 100% Time7h 42mGrid Energy: 86.7 kWh
Driving Range Added / Hour+59.1 km/h+36.7 miles / hour
Circuit Breaker Required60A (NEC)47.9A @ 240V (1P)

Charging Time & Electrical Specification Table (78 kWh @ 11.5 kW)

EV Battery Usable Capacity78 kWh
Charger Output Rating11.5 kW (240V 48A Hardwired Tesla Wall Connector)
10% to 80% Charging Time (Daily / Highway Optimal)5h 17m (5.28 hours)
20% to 80% Charging Time4h 31m (4.52 hours)
0% to 100% Full Charge Time (with BMS Tapering)7h 42m (7.71 hours)
Estimated Full Charge Cost (US / Germany / Sweden)$15.17 (US) · €29.48 (DE) · 143.06 kr (SE)
Continuous Current Draw & Breaker47.9 A @ 240V (1-Phase) → 60A NEC / 50A IEC Breaker

Frequently Asked Questions

How long does it take to charge a 78 kWh EV battery at 11.5 kW?

Charging a 78 kWh electric vehicle battery from 10% to 80% on a 11.5 kW (240V 48A Hardwired Tesla Wall Connector) takes approximately 5h 17m (or 7h 42m for a full 0% to 100% charge including charger efficiency and BMS tapering).

What breaker size is required for a 11.5 kW EV charger?

At 240V (1-Phase), a 11.5 kW charger draws 47.9A continuously, requiring a 60A breaker under US NEC 625.41 (125% continuous load rule) or a 50A breaker under European IEC/NEK standards.

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