⚡ 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 (2026-10-24)
🚗 EV Charging Time · NEC Article 625 · IEC 61851 Wallbox Sizing

34 kWh EV Battery Charging Time on 1.4 kW (120V 12A Level 1 Portable)

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 Time18h 53m20%–80%: 16h 11m
Full 0% to 100% Time27h 36mGrid Energy: 37.8 kWh
Driving Range Added / Hour+7.2 km/h+4.5 miles / hour
Circuit Breaker Required15A (NEC)11.7A @ 120V (1P)

Charging Time & Electrical Specification Table (34 kWh @ 1.4 kW)

EV Battery Usable Capacity34 kWh
Charger Output Rating1.4 kW (120V 12A Level 1 Portable)
10% to 80% Charging Time (Daily / Highway Optimal)18h 53m (18.89 hours)
20% to 80% Charging Time16h 11m (16.19 hours)
0% to 100% Full Charge Time (with BMS Tapering)27h 36m (27.6 hours)
Estimated Full Charge Cost (US / Germany / Sweden)$6.61 (US) · €12.85 (DE) · 62.37 kr (SE)
Continuous Current Draw & Breaker11.7 A @ 120V (1-Phase) → 15A NEC / 13A IEC Breaker

Frequently Asked Questions

How long does it take to charge a 34 kWh EV battery at 1.4 kW?

Charging a 34 kWh electric vehicle battery from 10% to 80% on a 1.4 kW (120V 12A Level 1 Portable) takes approximately 18h 53m (or 27h 36m for a full 0% to 100% charge including charger efficiency and BMS tapering).

What breaker size is required for a 1.4 kW EV charger?

At 120V (1-Phase), a 1.4 kW charger draws 11.7A continuously, requiring a 15A breaker under US NEC 625.41 (125% continuous load rule) or a 13A breaker under European IEC/NEK standards.

Compare Other Chargers & Battery Sizes

34 kWh at 2.3 kW Charger34 kWh at 3.6 kW Charger34 kWh at 4.6 kW Charger34 kWh at 7.2 kW Charger34 kWh at 7.6 kW Charger34 kWh at 11 kW Charger34 kWh at 19.2 kW Charger34 kWh at 30 kW Charger34 kWh at 50 kW Charger34 kWh at 75 kW Charger34 kWh at 120 kW Charger34 kWh at 175 kW Charger34 kWh at 250 kW Charger34 kWh at 350 kW Charger40 kWh Battery at 1.4 kW50 kWh Battery at 1.4 kW60 kWh Battery at 1.4 kW65 kWh Battery at 1.4 kW70 kWh Battery at 1.4 kW75 kWh Battery at 1.4 kW77 kWh Battery at 1.4 kW82 kWh Battery at 1.4 kW90 kWh Battery at 1.4 kW100 kWh Battery at 1.4 kW