A company surpasses Tesla in terms of longevity of batteries for electric cars

The advancements in electric car battery technology are in full swing, and a key figure could redefine industry standards. Indeed, a recent study conducted by Kvdbil, covering 1,366 used vehicles, reveals that the Kia EV6 sets a new record for battery longevity, even outpacing the giant Tesla. This leads to reflection: what truly determines the durability of modern batteries, and how can each driver optimize the longevity of their electric vehicle?

A New Champion in Battery Preservation

The results are unequivocal: the Kia EV6 is crowned king of resilience, exhibiting the lowest degradation among all tested models. Furthermore, the Kia e-Niro also ranks second, highlighting the superiority of the Korean manufacturer in this field. Martin Reinholdsson, head of testing at Kvdbil, even admitted to being “a bit surprised that there were so many that were this good.” What accounts for this performance?

• 🔋 Optimized thermal management.
• 🔌 Reinvented charging cycles.
• 🌡️ Stable and durable battery chemistry.

Results to Clarify

The Kvdbil study focuses on the state of health (SoH) of batteries, a critical indicator that assesses the remaining capacity after several years. The results are astounding: 80% of the analyzed vehicles still retain 90% or more of their original capacity, far exceeding engineers' expectations. This challenges the image of rapid degradation often associated with electric car batteries.

Model	State of Health (%)	Position in Ranking
Kia EV6	90%	1st
Kia e-Niro	88%	2nd
Tesla Model Y	85%	3rd
Tesla (group)	Đ85%	4th

Factors Impacting Battery Longevity

As the analysis highlights, battery degradation is more influenced by daily usage than by the model itself. Key factors include:

• 🌞 Climate: extreme temperatures can harm performance.
• 🚙 Driving style: gentler driving extends battery life.
• 🔄 Charging habits: charging too often to 100% can reduce longevity.

These observations are corroborated by a UK study conducted by RSEV, which reveals an average capacity loss of 10% across the analyzed fleet. Nevertheless, simple strategies can prolong the health of your battery:

• 🔋 Limit daily charge to 80%.
• ⚡ Reserve fast charging for long trips.
• 🌡️ Avoid extreme heating.
• 💯 Do not leave your battery at full charge for too long.

Technological Progress and Lower Costs

Advancements in electric batteries also translate into reduced replacement costs and improved recycling technologies. Recycling channels are becoming more efficient, and previous concerns about battery durability are fading. For example, companies like CATL and BYD are continually developing technologies aimed at reducing environmental impact while strengthening the circular economy in the automotive sector.

Manufacturer	Technology	Recycling
CATL	Advanced lithium-ion batteries	Strengthened recycling infrastructures
BYD	Lithium iron phosphate batteries	Innovative reuse programs
Tesla	Advanced battery technology	Strategic raw material recycling
Panasonic	High-performance batteries	Recovery of key resources

// Simulated data for each modelconst data = [ { "nom": "Kia EV6", "capacite": 77, "autonomie": 528, "dureeVie": 1000 }, { "nom": "Kia e-Niro", "capacite": 64, "autonomie": 455, "dureeVie": 1200 }, { "nom": "Tesla Model Y", "capacite": 75, "autonomie": 507, "dureeVie": 1200 }, { "nom": "RSEV", "capacite": 80, "autonomie": 600, "dureeVie": 1500 }, { "nom": "Kvdbil", "capacite": 70, "autonomie": 480, "dureeVie": 1100 }, { "nom": "CATL", "capacite": 85, "autonomie": 650, "dureeVie": 1600 }, { "nom": "BYD", "capacite": 70, "autonomie": 500, "dureeVie": 1400 }];// Function to fill the tablefunction remplirTableau() { const tableBody = document.getElementById("table-body"); data.forEach(voiture => { const ligne = document.createElement("tr"); ligne.className = "border border-gray-300"; ligne.innerHTML = ` ${voiture.nom} ${voiture.capacite} kWh ${voiture.autonomie} km ${voiture.dureeVie} cycles `; tableBody.appendChild(ligne); });}// Call the function to fill the table on page loadremplirTableau(); /* Ensures that the table does not exceed 2000px in height */ table { max-height: 2000px; overflow-y: auto; display: block; display: table; }

A Promising Future for Electric Vehicles

In summary, this new data on battery longevity alleviates consumer concerns and forces brands, including Tesla, to better communicate the realities of their products' durability. As 2025 looms as a pivotal year for the electric transition, users must keep in mind that best daily practices directly impact battery performance.

With vehicles now capable of retaining up to 90% of their capacity after 145,000 kilometers, and some batteries even reaching 320,000 kilometers with 80% capacity, the electric car market positions itself advantageously against its thermal engine counterparts. At this point, it makes sense to reevaluate judgments on the durability and reliability of electric vehicles.

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