Electric vehicles
Tesla Model Y (RWD) charge time
5 h 49 min
to add 10→80% on a 32 A · 7.7 kW home circuit (240 V)
4 h 4 min
at 48 A (11.5 kW) — near the 11 kW onboard limit
11 h 39 min
on a 16 A circuit (3.8 kW)
On a 240 V split-phase 32 A circuit (about 7.7 kW), adding 70% — a typical 10→80% top-up — takes 5 h 49 min.
At 48 A (11.5 kW), capped by the car’s 11 kW onboard limit, the same 70% takes 4 h 4 min.
On a 16 A circuit (about 3.8 kW), that same 70% takes 11 h 39 min.
Specifications
Specs for this unit are being sourced — we publish a spec number only once two independent authorities agree on it.
Charge time by supply power and amount added
| Supply · 240 V | +20% | +30% | +40% | +50% | +60% | +70% | +80% | +100% |
|---|---|---|---|---|---|---|---|---|
| 12 A · 2.9 kW | 4 h 26 min | 6 h 40 min | 8 h 52 min | 11 h 5 min | 13 h 19 min | 15 h 32 min | 17 h 45 min | 22 h 11 min |
| 16 A · 3.8 kW | 3 h 20 min | 4 h 59 min | 6 h 40 min | 8 h 19 min | 9 h 59 min | 11 h 39 min | 13 h 19 min | 16 h 38 min |
| 24 A · 5.8 kW | 2 h 13 min | 3 h 20 min | 4 h 26 min | 5 h 33 min | 6 h 40 min | 7 h 46 min | 8 h 52 min | 11 h 5 min |
| 32 A · 7.7 kW | 1 h 40 min | 2 h 30 min | 3 h 20 min | 4 h 10 min | 4 h 59 min | 5 h 49 min | 6 h 40 min | 8 h 19 min |
| 40 A · 9.6 kW | 1 h 20 min | 2 h | 2 h 40 min | 3 h 20 min | 3 h 59 min | 4 h 40 min | 5 h 19 min | 6 h 40 min |
| 48 A · 11.5 kW | 1 h 10 min | 1 h 44 min | 2 h 19 min | 2 h 54 min | 3 h 29 min | 4 h 4 min | 4 h 39 min | 5 h 49 min |
The highlighted row is the realistic home supply — the configuration in the readout above.
Assumptions
- charging efficiency: 0.9
- ac curve: flat to ~90% SOC; DC fast-charging uses a separate taper model
- supply voltage V: 240
- phase: split
AC charging only; kW derived from amperage at 240 V split-phase (US default). Spec values are placeholders pending two-source verification.
Related
Sources
- PLACEHOLDER — verify against Tesla documentation + an independent source