At the recent bauma 2025 show in Munich, Germany, in April, Komatsu debuted Dimaag’s Mobile Megawatt Charging System (MWCS), which was described a first for the industry. Designed for deployment in construction, and other off-road applications, the MWCS enables charging at point of use, thereby significantly reducing downtime associated with trips to fixed charging stations.
Dimaag’s MWCS boasts a compact, high-efficiency DC-DC converter and a long-life, high-discharge-rate 295 kWh Energy Storage System (ESS). Both components utilise an advanced thermal management system to optimise lifecycle and safety during high-power delivery. The modular DC-DC converter is scalable, and according to Dimaag offers charging capacities from 1 MW to 6 MW. The mobile MWCS also comes with 4-wheel drive and 4-wheel steering capability to navigate around tight surroundings and rough terrains. It has an MCS connector.
he vehicle dimensions are 3,700 length by 1,500 mm width and 1,400 mm height weighing up to 5 t depending on configuration. It has four electric traction motors – one per wheel – providing four wheel steering capability with electronic torque vectoring. Its 208 kW motor delivers 2,180 Nm of continuous torque at each wheel. It has a top speed of 35 km/h and can handle a maximum incline grade of 40%. For added safety it has parking brakes that are spring applied and hydraulically released. Operation is via joystick remote control or fully autonomous control.
“Dimaag is excited to collaborate with Komatsu, introducing our advanced ESS and DC-DC architecture to revolutionise electrification in construction,” stated Ian Wright, VP Engineering at Dimaag and Tesla Co-Founder. “Off-road vehicle electrification demands practical solutions that not only meet but exceed the performance of equivalent large diesel engine vehicles, while also providing substantial Total Cost of Ownership savings. Dimaag’s electrification and high-power megawatt charging systems are designed to achieve this.”
“We are delighted to collaborate with Dimaag to leverage the effectiveness of MWCS,” stated Taisuke Kusaba, Senior Executive Officer (Jomu), CTO, Supervising Research & Development at Komatsu. “Despite the challenges in developing the market for electric construction equipment, primarily due to installation costs and the need for adequate power supply infrastructure, we remain committed to accelerating our efforts toward market development through collaboration with companies such as Dimaag, in pursuit of our challenge goal to achieve carbon neutrality by 2050.”
Dimaag is a Silicon Valley company specialising in high power batteries, mobile megawatt chargers and full stack electrification and autonomous solutions. Dimaag’s advanced thermal management technology manages these high-power solutions to enhance safety and life cycle. Dimaag’s solutions are targeted to address the electrification needs in the off-road machinery industry, including in mining.
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