01:22 19-03-2026

Renault's Megane E-Tech battery timing error and future updates

Renault has acknowledged a misstep in developing its electric Megane E-Tech. According to group technical director Philippe Brunet, the company chose the battery chemistry too early—four years before the model hit the market. Consequently, the electric car was partly outdated at launch, especially regarding charging capabilities.

The model uses NCM (nickel, cobalt, manganese) batteries from LG Energy Solution. Renault has already changed its approach: the final technology selection will now occur no earlier than two years before a vehicle's launch.

The company notes that rapid progress in the industry demands flexibility. Making decisions too far in advance can lead to a car losing relevance even before sales begin—a problem other European manufacturers have also faced.

In 2026, the Megane is set to receive an update and is expected to switch to LFP batteries. At the same time, Renault is developing two battery lines: High Energy and Affordable, with gradual increases in energy density by 2030. Plans also include implementing CTB (Cell-to-Body) technology, which integrates battery cells directly into the body structure to improve efficiency.

This case highlights how quickly the new car market is evolving, where batteries and technology are becoming key factors alongside traditional vehicle characteristics.