Charging time and cost
The calculators need JavaScript. The sums are written out under What it assumes, if you'd rather do them by hand.
What it assumes
- Energy into the battery = usable battery × (end % − start %). The default capacities are the ones Ocean Live assumes (from the owner guide):
- Sport: single front motor, front-wheel drive, smaller LFP (lithium iron phosphate) battery. Ocean Live assumes about 75 kWh usable for it.
- Ultra and Extreme (the launch edition was called One): two motors, all-wheel drive, larger NMC battery. Ocean Live assumes about 106.5 kWh usable.
- Energy from the charger = energy into the battery ÷ (1 − losses). Losses are 0 unless you enter a figure: some energy is always lost as heat, and how much varies, so the real cost is a bit higher.
- Time = energy from the charger ÷ the average power you enter. Real charging isn't constant: DC fast charging peaks are lower than the brochure figures in practice and depend heavily on battery temperature and state of charge; a cold pack charges slowly. Ocean Live's charging curve shows what the owner's own car actually does. On AC, the guide says the Ocean charges at up to about 11 kW on a suitable charger, so a bigger AC charger won't be faster than that.
- Cost = energy from the charger × your price per kWh (shown once you enter a price). Prices and fees vary by charger and network; nothing here knows your tariff.
- Your own numbers: the app's Trips tab shows each charge's curve, average power and cost, and Battery→Battery health measures your car's usable capacity.
12V battery check
The Ocean has a conventional 12 V battery that runs the car's computers, locks and contactors. If it goes flat the car cannot start its high-voltage system. The high-voltage battery tops the 12 V up while the car is awake or charging, not continuously while asleep.
What the voltages mean
From the owner guide: resting voltage is read after the car has slept, before it starts charging the 12 V. 12.4 V or more is healthy. Resting under 12.4 V means the 12 V battery is weak or something draws power while parked. Under 12.0 V the car may not wake up. Over 13.2 V the car's DC-DC converter is charging the 12 V, which is normal while the car is awake. A healthy car loses only a few hundredths of a volt a night.
| Reading | What it means |
|---|---|
| 12.4 V or more, at rest | Healthy |
| Under 12.4 V, at rest | The 12V battery is weak or something draws power while parked |
| Under 12.0 V | The car may not wake up |
| Over 13.2 V | The car's DC-DC converter is charging the 12V, normal while it's awake |
Leaving an OBD adapter plugged in drains the 12 V a little. A vLinker FD+ uses about 51 mA awake and about 3 mA asleep (Vgate's figures). Owners who park for weeks should unplug it. Ocean Live's 12V screen and Watch 12V while the car sleeps read this for you: see 12V resting voltage.