SUN Mobility Partners with Tata Motors to Showcase Next-Generation Battery Swapping Technology
SUN Mobility Unveils World’s First Modular Multi-Battery Swappable Solution for Electric Buses
Chetan Maini: India’s Battery Swapping Innovation Can Lead the Global Commercial EV Revolution
Ashok Agarwal: Battery Swapping Will Drive the Next Phase of Commercial EV Growth
SUN Mobility Unveils World’s First Modular Multi-Battery Swappable Solution for Electric Buses at Prawaas 5.0
New Swappable Battery Platform Aims to Transform India’s Commercial EV Bus Market
Targets Decarbonisation of India’s USD 12 Billion Commercial Bus Market
Bilkul Bazaar | By Rafat Quadri
Gandhinagar
SUN Mobility, a leading provider of battery swapping and energy infrastructure solutions for electric vehicles, has unveiled what it claims is the world’s first Modular Multi-Battery Swappable Solution for heavy electric vehicles (HEVs), showcased on the Tata Starbus 12-metre electric bus platform at Prawaas 5.0 in Gandhinagar.
The new technology is designed to accelerate the adoption of electric buses by addressing key challenges such as high upfront vehicle costs, charging delays, limited fleet utilisation and battery replacement concerns. The solution aims to support large-scale decarbonisation of India’s commercial bus market, estimated at nearly USD 12 billion.
The launch was inaugurated by Amrendra Singh Kishore (IOFS), Director, Ministry of Heavy Industries, Government of India, in the presence of Anand S, Vice President and Business Head, Tata Motors Commercial Vehicles; T.V. Srinivas, Head of Product Planning, Tata Motors Commercial Vehicles; Chetan Maini, Co-founder and Chairman of SUN Mobility; and Ashok Agarwal, CEO of SUN Mobility HEV.
Speaking at the event, Ashok Agarwal said the future of commercial vehicle electrification depends not only on electric vehicles but also on robust energy infrastructure. He noted that the modular battery-swapping platform can cater to staff transport, city buses and intercity operations while maintaining affordability and operational efficiency.
Chetan Maini said the company was founded with the vision of making electric mobility as convenient and economically viable as conventional transport. He described the new modular swapping solution as a significant milestone that could enable large-scale electrification of commercial vehicles while positioning India as a global leader in next-generation electric mobility technology.
A key feature of the new system is its AIS-038 certified modular battery architecture, which allows two battery packs to be swapped simultaneously in less than five minutes. The same platform supports both 50 kWh and 100 kWh battery configurations and can be deployed across commercial vehicles ranging from 3-tonne trucks to 55-tonne heavy vehicles.
SUN Mobility’s Battery-as-a-Service (BaaS) model separates battery ownership from the vehicle, allowing fleet operators to pay only for the energy consumed instead of purchasing expensive battery packs. The company says this significantly reduces acquisition costs, removes battery replacement risks and improves financing viability for fleet owners.
The platform also integrates advanced digital capabilities, including real-time battery health monitoring, vehicle diagnostics, predictive maintenance, energy management and over-the-air software updates through SUN Mobility’s proprietary Digital Twin platform. The connected ecosystem enables efficient fleet management and improved operational performance.
Designed with a common battery, vehicle and swapping infrastructure, the platform can be deployed across multiple commercial transport applications without requiring separate energy systems, enabling operators to scale their electric fleets more efficiently.
SUN Mobility said the technology has been developed entirely in India and is backed by more than 275 patents. The company has already established over 1,900 Swap Points across 23 cities, completed more than 70 million battery swaps and enabled over 465 million electric kilometres, helping prevent more than 100,000 metric tonnes of carbon dioxide emissions.
Founded in 2017 by Chetan Maini and Uday Khemka, SUN Mobility is supported by investors including Bosch, Vitol, Helios Climate and Indian Oil Corporation Limited. The company is also expanding its nationwide battery swapping infrastructure through IndoFast Swap Energy, a joint venture with Indian Oil.
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