Factors That Drain EV Battery: A Guide for EV Owners
With the increasing popularity of electric vehicles (EVs) in the UAE, understanding how to maximise your EV’s battery life has become essential. Whether you are navigating the bustling streets of Dubai or embarking on a long journey across the Emirates, knowing what drains EV batteries and how to manage them can make a significant difference. Let’s find out the various factors that drain EV battery and provide practical tips to help you get the most out of your electric vehicle.
List of Factors That Drain EV Battery
EVs are increasingly popular in the UAE, reducing the carbon footprint of cars and efficient modes of transportation. That said, EV owners often face challenges with battery life and range. There are different types of EV batteries available in the market. Understanding factors that drain EV batteries can help you make informed decisions and maximise your vehicle’s efficiency. Let’s explore the list of factors affecting your EV battery.
Heating and Cooling
One of the most significant factors that drain electric vehicle batteries is the heating and cooling system. Regulating the temperature of both the battery pack and the cabin can quickly reduce the electric car range. In the extreme heat of the UAE, your EV has to work harder to cool the cabin, drawing more power from the battery.
- To help manage this, make sure to preheat or pre-cool your electric vehicle while it’s still plugged into the charger. This allows the grid energy to handle the temperature adjustment.
- Additionally, using heated/cooled seats and a heated steering wheel is more efficient than adjusting the entire cabin’s temperature, which helps conserve energy.
Audio and Infotainment
Modern EVs come with advanced infotainment systems, often spanning multiple screens and offering a range of features. These systems, while convenient and entertaining, consume more energy than the simpler setups. The extensive use of screens, high-resolution displays and powerful processors all draw power from the battery.
Battery Heating During Fast Charging

Fast charging is convenient but can generate significant heat, which can negatively impact battery health over time. In the UAE’s hot climate, this effect is exacerbated, leading to faster battery degradation and reduced efficiency.
- You can limit the use of fast chargers and prefer slower, overnight charging whenever possible.
- Also, some EVs have features that allow you to monitor battery temperature. Avoid fast charging if the battery is already warm.
Besides, follow these tips if your EV battery runs out of charging quite frequently.
Software and Firmware Updates
Keeping your EV’s software and firmware up to date is crucial for optimal performance and battery management. However, these updates can occasionally cause temporary car battery drain as new systems and settings calibrate.
- Perform updates when your vehicle is plugged in to ensure that the battery is not unnecessarily drained.
- Regularly check for software updates to ensure your vehicle is running efficiently and benefiting from the latest improvements in battery management. You can also use EV Battery Management System to manage and monitor the car’s battery performance.
USB Chargers
Using USB chargers is one of the common factors that drain EV battery. For instance, if a child is watching a show on a tablet plugged into the car’s USB port, it will only reduce EV range by about 9 metres per hour of use. While the cumulative effect of multiple devices might be slightly more, it is still minor compared to other energy drains.
Wipers
Operating your windshield wipers during a rainstorm consumes some energy, but the effect is minor. For example, using the wipers for 15 minutes can reduce your range by about 10 metres. Given the infrequent rainfall in the UAE, this is typically not a major concern.
Aerodynamic Drag
The shape of your EV and any additional accessories can impact its aerodynamic efficiency, especially at highway speeds. Roof racks, bike racks and other attachments increase drag, reducing your range. This is particularly relevant in the UAE, where long highway journeys are common. For better mileage, consider removing any unnecessary accessories when they’re not in use. The sleeker and more aerodynamic your vehicle, the less energy it will need to maintain speed.
Speed
Driving at high speeds is one of the common factors that drain EV battery. The faster you go, the more wind resistance your EV encounters, which requires more power to overcome. By slightly reducing your speed, you can achieve significant energy savings. For example, lowering your cruise control setting from 113 km/h to 110 km/h can save you about 8.4% in energy consumption. This small adjustment can extend your range, making a big difference on long trips across the Emirates.
Battery Age and Health

Over time, the capacity of your EV battery will degrade, which is a natural process for all lithium-ion batteries. This degradation can be exacerbated by extreme temperatures and cause electric car battery problems.
- You can follow your manufacturer’s guidelines for battery maintenance and get regular check-ups.
- Also, use fast charging sparingly, as it can accelerate battery wear.
In case you need to replace EV batteries, browse through the list of new car batteries in the UAE and get the one that matches your needs.
Weight
Carrying extra passengers, luggage or towing a trailer increases energy consumption and drains EV batteries. This is true for all vehicles, but EVs have an advantage with regenerative braking, which recovers some energy when decelerating or stopping. However, lighter loads will still extend your range, so pack only what you need. In the UAE, where family trips and outdoor activities are common, managing your vehicle’s weight can help you travel further on a single charge.
Tyres
The type and condition of your tyres greatly affect your EV’s efficiency. Using the right EV tyres for the season and maintaining proper tyre pressure is crucial. Incorrect tyres can lead to increased energy consumption, reducing your overall driving experience and range. In the UAE’s hot climate, tyre pressure can fluctuate, so regularly checking and adjusting it is essential for optimal performance.
EV Idling

EVs have two batteries: an auxiliary battery and the main long-range battery. The auxiliary battery powers the car’s startup and accessories when the main battery is off. If you need to use accessories like the radio or lights while waiting in your car, keep the car ON to use the main battery instead of draining the auxiliary battery. This practice also ensures you don’t unexpectedly deplete your auxiliary battery, avoiding the need for a boost to restart your car.
Route and Terrain
Driving on hilly terrain or routes with frequent stops and starts can cause EV battery drains. In the UAE, areas with heavy traffic like Dubai and Abu Dhabi can contribute to higher energy consumption.
- You can choose routes with less traffic and fewer stops whenever possible.
- Modern EVs come with navigation systems that can suggest energy-efficient routes.
Tips to Maximise EV Battery Charging
The primary drain on your EV battery is the motor, but you can manage and optimise battery usage with a few simple practices:
- Preheat or pre-cool your EV while plugged in to use grid energy for temperature regulation.
- Use heated/cooled seats and steering wheels instead of the cabin thermostat for more efficient heating and cooling.
- Remove unnecessary exterior accessories to improve aerodynamic efficiency and boost battery performance.
- Regularly check and maintain your tyres, ensuring they are the right type and properly inflated for optimal energy consumption.
- Adjust your driving speed to reduce wind resistance and save energy.
- Manage your vehicle’s weight by carrying only what you need to maximise your range.
By following these tips to increase your EV car battery life and maximise its efficiency and range, ensuring a smoother driving experience in the UAE. The proper maintenance of electric cars according to the manufacturer’s recommended schedule to maintain its performance and extend its lifespan.
FAQs
How can I check the battery temperature of my EV?
Most EVs have a built-in display or app that shows battery temperature. You can also access this information through the vehicle’s infotainment system or a connected mobile app.
What are the recommended manufacturer guidelines for EV battery maintenance?
Recommended guidelines typically include regular software updates, avoiding extreme temperatures, keeping the battery charge between 20-80% and adhering to scheduled maintenance checks as outlined in the owner’s manual.
Are there specific software and firmware updates that should be prioritised for battery management?
Yes, prioritise updates that enhance battery performance, thermal management and charging efficiency. Check with your vehicle manufacturer or service centre for the latest updates.
With this, we end the list of factors that drain EV batteries. Understanding the factors affecting your EV battery is crucial for efficient energy management. By being aware of everything that drains EV batteries, you can take proactive steps to minimise energy consumption.
If you are planning to buy a used car in the UAE, make sure you take a test drive and keep a check on factors that drain EV batteries. Besides, for a better experience, explore these new cars for sale in the UAE and enjoy a comfortable ride.
Stay tuned to the dubizzle auto blog for more battery maintenance tips.