Every new EV owner in Saudi Arabia asks the same question: how many hours does it take to fully charge my car at home?
The answer depends on three numbers:
- Your battery capacity in kilowatt-hours (kWh)
- Your car's onboard charger limit, or OBC
- Your home charger's rated power in kilowatts (kW)
This guide gives the formula, charging times for the most common EVs in Saudi Arabia, the factors that affect speed, summer heat above all, and how to plan daily charging.
The basic formula
Time (hours) = Energy added (kWh) ÷ Effective charging power (kW)
A simple example: charging a 60 kWh battery from 20% to 90% adds 42 kWh. With an 11 kW charger:
`42 ÷ 11 = approximately 3.8 hours`
That is the ideal case. In practice it takes 10 to 15% longer because of:
- AC-to-DC conversion loss inside the car
- Active battery cooling, especially in Saudi summer
- Tapered charging, which slows the rate after 80%
The golden rule: the car always sets the ceiling
Before you calculate anything, remember that your car cannot use more power than its onboard charger limit, however big the home charger is.
OBC limits for popular EVs in Saudi Arabia:
- Tesla Model 3 / Model Y: 11 kW
- Lucid Air: 19.2 kW
- BYD Atto 3: 7.2 kW
- BYD Seal: 11.5 kW
- Hyundai Ioniq 5 / 6: 11 kW
More detail is in our guide on 7 vs 11 vs 22 kW chargers.
Charging times for popular cars from 10% to 100%
The figures below use the battery capacities published by manufacturers. They assume the charger reaches its full rated power and the weather is moderate:
Tesla Model Y Standard Range RWD: 60 kWh, LFP, 11 kW OBC
- 7 kW charger: about 9 hours
- 11 kW charger: about 6 hours
- 22 kW charger: about 6 hours, since the car is limited to 11 kW
Tesla Model Y Long Range AWD: 75 kWh, 11 kW OBC
- 7 kW charger: about 11 hours
- 11 kW charger: about 7.5 hours
- 22 kW charger: about 7.5 hours
Lucid Air Pure: 88 kWh, 19.2 kW OBC
- 7 kW charger: about 13 hours
- 11 kW charger: about 9 hours
- 22 kW charger: about 5 hours, using the full 19.2 kW OBC
Lucid Air Touring: 92 kWh, 19.2 kW OBC
- 11 kW charger: about 9.5 hours
- 22 kW charger: about 5.5 hours
Lucid Air Grand Touring: 117 kWh, 19.2 kW OBC
- 11 kW charger: about 12 hours
- 22 kW charger: about 7 hours
BYD Atto 3: 60.4 kWh, LFP Blade, 7.2 kW OBC
- 7 kW charger: about 10 hours
- 11 kW charger: about 10 hours, since the car is limited to 7.2 kW
- 22 kW charger: about 10 hours, for the same reason
Hyundai Ioniq 5: 72.6 kWh, 11 kW OBC
- 7 kW charger: about 11 hours
- 11 kW charger: about 7.5 hours, the setup Hyundai recommends
- 22 kW charger: about 7.5 hours
Note: these figures are estimates that assume a constant charging rate. In practice, conversion loss and cooling add 10 to 15%.
A correctly sized home charger and good charging habits help the battery last longer, especially in Saudi conditions. Read EVS's guide on extending EV battery life in Saudi heat for the charging patterns that matter most in 45°C+ summers and how to avoid early cell wear.
DC fast charging vs home AC
DC fast chargers at public stations are not limited by the car's OBC, because they bypass the car's onboard converter and feed the battery directly:
- Tesla Model Y: up to 250 kW DC on a V3 Supercharger
- Lucid Air: up to 300 kW DC
- BYD Atto 3: 80 to 110 kW DC
- BYD Atto 3 Evo, the next generation: up to 220 kW DC
- Hyundai Ioniq 5: up to 350 kW DC
In practice, home AC charging covers 90% of daily use. DC is for long trips, because:
- AC charging is gentler on the battery, so the battery lasts longer
- If you charge at home overnight, the battery is full in the morning and you lose no time
- Charging at home costs much less than at public stations
How Saudi heat affects charging speed
Saudi summers reach 40 to 45°C in Riyadh and Jeddah, and higher in the Eastern Province. Heat affects charging in these ways:
Above 45°C: automatic charging slowdown
The battery management system (BMS) lowers the charging rate to stop the battery from overheating. In very hot weather, the charger may deliver less than its rated power.
Sustained heat above 29°C: long-term wear
DC fast charging is more affected
DC fast charging produces more heat inside the battery, so outside temperature affects it more. Home AC charging is less sensitive to heat.
How to reduce the effect
- Charge in covered parking: indoor parking can be 10 to 15°C cooler than an open lot.
- Charge at night: the air is cooler.
- Use home AC for daily charging: keep DC charging for when you need it.
- Avoid charging to 100% every day: stay at 80 to 90% for daily use and charge to 100% only before a long trip.
Real-world math: your daily pattern in Saudi Arabia
Say you drive 80 km a day, which is typical for Riyadh. A mid-size EV uses about 17 kWh per 100 km. So you need to add about 13.6 kWh per day.
How many hours of home charging is that each day?
- 7 kW charger: about 2 hours
- 11 kW charger: about 1.3 hours
- 22 kW charger: about 40 minutes, for cars that can use it
In practice, even a 7 kW charger is enough for normal daily use. The difference between 7, 11 and 22 kW shows when you are:
- Recharging from empty to full after a long trip
- Charging more than one car overnight
- Driving 200 km or more a day
When do you actually need DC fast charging?
DC fast charging makes sense in a few cases:
- Trips between cities: Riyadh to Jeddah is about 950 km and Riyadh to Dammam about 400 km.
- Workdays with many trips: Uber, Careem or Talabat drivers using an EV.
- Apartments with no home charger: you rely on public charging.
For a typical homeowner, overnight AC charging at home covers 95% of needs. DC is only for long trips.
Frequently asked questions
Why does charging from 90% to 100% take longer?
This is called tapered charging. The battery accepts fast charging up to about 80%, then the rate drops to protect the cells. The effect is large with DC fast charging and small with home AC.
Can I leave the car on the charger overnight?
Yes. Modern EVs stop charging at the limit you set. We recommend 80 to 90% for daily use.
Does charging time change as the battery ages?
Not noticeably. In normal use, a battery loses about 2 to 3% of its capacity a year, and the time to charge what remains stays close to the original figures.
Do I need a DC charger at home?
No. A DC charger at home is not practical. It costs a lot, needs heavy electrical infrastructure, and puts stress on the battery with no real benefit. Stay with AC.
How often per week do I need to charge?
For typical Saudi driving of 50 to 100 km a day, 2 to 3 charging sessions a week on a 7 or 11 kW charger are enough. It depends on how you drive and your battery size.
Does a smart charger calculate the time for me?
Yes. OCPP-compatible chargers and car apps show the time left to your set limit and let you schedule charging for set hours.
Summary: what to do
- Know your car's battery size in kWh and its OBC rate in kW.
- Work out your daily top-up: daily distance in km × 0.17 kWh/km.
- Divide by your charger's rated power: the result is your daily charging hours.
- Schedule charging at night, especially in Saudi summer.
- Use covered parking when possible to reduce heat impact.
Get a tailored home assessment for your needs
Official sources
- Lucid Motors: Charging Your Lucid Air
- Lucid Air Grand Touring: technical specs (PDF)
- Tesla: Model Y specifications
- BYD Atto 3: charging guide, battery 60.4 kWh, OBC 7.2 kW
- Insider EVs: Lucid Air battery specs
- IEC 61851, the charging power standard
- SERA: Saudi Arabian Grid Code
Note on the figures: OBC and battery capacity specs change between model years and trims. For current figures on a specific car, check the manufacturer's official documents.
