The remanufactured units, developed at the Competence Centre for Emission-free Mobility (KEM) in Mannheim, offer like-new quality, tested safety, and full functionality. According to Mercedes-Benz Trucks, the reworked CB400 batteries can reduce CO₂e emissions by approximately one-third compared to new production, supporting Daimler Truck’s broader circular economy strategy.
The refurbishment process involves collecting used CB400 batteries from customer vehicles, disassembling them, thoroughly cleaning all components, and upgrading them to the latest series standard. Each battery is equipped with the current software version and undergoes functional and leak testing. The reworked units meet the same quality and safety standards as new parts and are covered by the standard Mercedes-Benz Trucks parts warranty.
For fleet operators, battery replacement is one of the costliest aspects of running electric trucks, making reworked options a welcome alternative.
Reworked batteries that cannot be refurbished are recycled, while others may enter second-life use in stationary energy storage systems. Availability in various performance levels ensures better compatibility with existing vehicle battery packs, helping to minimise downtime during servicing.
“With the CB400 reworked concept, we offer our customers a cost-efficient and sustainable solution that reuses high-quality components, thereby reducing resource consumption and greenhouse gas emissions — all while maintaining consistently high quality,” said Christian Vrbek, Team Leader Remanufacturing Zero Emission Vehicles in Aftersales at Daimler Truck.
Although production of the first-generation eActros 300 and 400 models is scheduled to end later this year, Mercedes-Benz Trucks aims to ensure long-term support for operators of those vehicles. The reworked CB400 batteries remain available for the eEconic as well.
In parallel, Daimler Truck is scaling up its Battery Technology Center (BTC) in Mannheim, which spans over 10,000 square metres and combines product development with pilot-scale production. The BTC includes two core areas: one for experimental cell production and one for assembling prototype battery packs for test vehicles and test benches.
