All about EV charging

4 Common Questions while Charging EV

1. How long does it take to charge an EV?

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  • Home Charging

    The slowest charging option for an EV, typically taking more than 20 hours and often requiring an overnight charge.

  • Alternating Current (AC) Charging

    Suitable used at homes, Workplaces, and public charging stations, usually take 5 to 6 hours.

  • Direct Current (DC) Fast Charging

    The fastest option, which can charge an EV from around 20% to 80% in roughly 20 to 40 minutes.


2. What are the types of EV chargers?

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  • AC Charger

    AC chargers are commonly used at homes, workplaces and public charging stations. They provide electricity to the EV's onboard charger, which converts AC power into DC power for the battery.

  • DC Fast Charger

    DC fast chargers supply DC electricity directly to the EV battery, allowing the vehicle to charge much faster than AC chargers.

  • Portable Charger

    Portable chargers are compact and convenient, allowing EV owners to charge their vehicles from suitable electrical outlets when needed.


3. What things affect charging speed?

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  • State of Charge

    Batteries charge faster when they are very low, usually when it is below 10%.

  • Temperature of Battery

    Charging process will be very slow in extreme weather. Try to ensure the temperature of batteries is between 20°C and 35°C.

  • Battery Deterioration

    Battery will deteriorate over time due to capacity loss. Thus, the charging speed will decrease after several years.

  • Vehicle's Voltage and Current

    The vehicle’s voltage and current determine its charging power, with higher voltage or current generally allowing the battery to charge faster.


4. How much does it cost to charge an EV?

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  • Home Charging

    Charging at home using standard TNB tariffs costs around RM0.24 to RM0.44 per kWh, making a full charge cost around RM10 to RM20.

  • Public AC Charging

    Public AC chargers in malls or hotels usually cost between RM1.00 and RM1.15 per kWh, costing around RM40 for a standard top-up.

  • Public DC Fast Charging

    High-speed highway DC fast chargers cost between RM1.10 and RM1.80 per kWh, taking around 20 to 40 minutes for a charge.