Battery optimization
At Dreev, we are well aware of the importance of the battery in the vehicle’s composition. The battery is a major factor not only in the cost of the vehicle but also in the CO2 emissions linked to its manufacture.
Charging and discharging cycles
Each charge and discharge cycle affects the battery’s capacity. A large number of cycles can lead to progressive degradation. High charge cycles (from 0% to 100% battery) accelerate the ageing of the battery. Our intelligent recharging solutions recommend that you plug in frequently and don’t wait for the battery to fall below 20% energy.
Prolonged stockage at high or low charge levels
We recommend storing the battery at a medium charge level, generally between 30% and 50%. We control recharging so that your vehicle does not remain fully charged at rest, which improves its lifespan. This optimisation depends on your electricity tariff and your mobility needs.
Preserving batteries, a priority
Other factors, such as temperature, can reduce the life of your vehicle’s batteries. Batteries do not like extreme cold or excessive heat. High temperatures can accelerate battery degradation.
By applying intelligent V1G / V2G charging technologies, Dreev contributes to the rational use of your electric vehicles.
In the case of V2G technology, charge/discharge cycles are carried out according to the rules laid down by car manufacturers. This means that the use of V2G technology has no impact on the vehicle’s battery warranty. Car manufacturers’ priorities are the reliability and durability of their vehicles. The rules that Dreev complies with make it possible to meet these major objectives.
EDF expertise
Tests were conducted within EDF’s R&D to evaluate the impact of V1G and V2G on battery life. These indicate the preferability of smart charging management compared to conventional charging.
These tests are confirmed in a study published in May 2024 by a team of researchers in Germany. The bidirectional charging strategies studied in this article can provide additional services without significantly shortening the lifespan of the electric vehicle battery: ‘All V2X and late charging scenarios experience significantly lower degradation compared to immediate charging.’
Smart charging management is essential for extending battery life. By adopting these practices, you can maximize your electric vehicle’s performance while preserving the integrity of its battery.
Gong, J., Wasylowski, D., Figgener, J., Bihn, S., Rücker, F., Ringbeck, F., & Sauer, D. U. (2023). Quantifying the impact of V2X operation on electric vehicle battery degradation: An experimental evaluation. Journal of Electric Vehicle Technology, 15(3), 123-145.
