Nio's Firefly model boasts a 42.1 kWh battery pack, offering a 420 km range according to the Chinese test cycle (CLTC).
The NIO Firefly, a subcompact electric hatchback, was unveiled in April 2025, marking a new contender in the electric vehicle (EV) market. Positioned as an upmarket, aspirational small EV, the Firefly aims to compete with vehicles like the Renault 5 E-Tech and Nissan Micra clones, while offering style, functionality, and battery-swap technology.
The Firefly's battery pack, supplied by Sunwoda, marks the first time Sunwoda has been among NIO's suppliers. The battery pack has a capacity of 42.1 kWh, though the exact energy density and energy efficiency numbers for the Firefly are not yet publicly available.
NIO's other models provide relevant context for comparison. The Onvo L90, a NIO sub-brand SUV, features an 85 kWh battery pack, built on a 900V architecture, and offers energy consumption of 14.5 kWh/100 km for its Rear-Wheel Drive version, with a range of 605 km. The All-Wheel Drive version consumes 15.4 kWh/100 km, offering a range of 570 km.
The NIO ET9, a flagship sedan, features a 100 kWh swappable battery and a dual-motor All-Wheel Drive system, indicating a premium and high-capacity battery setup.
Though precise Model Y specifications are not cited, NIO claims its L60 model achieves better energy efficiency than the Tesla Model Y, partly due to superior aerodynamics in its class. Tesla’s Model Y generally features battery packs around 75-82 kWh and energy consumption ranging approximately 15-20 kWh per 100 km depending on version and conditions, setting an industry benchmark for mid-sized electric SUVs.
The Firefly, targeting a market segment comparable to higher-end compact EVs like MINI or Smart, is positioned to offer premium features and solid range. However, details like battery size and energy consumption remain unrevealed.
The Firefly model weighs 1,492 kilograms, with the power battery pack weighing 314 kilograms. It has a CLTC range of 420 kilometers, consumes about 10 kWh of electricity per 100 kilometers, and supports a top speed of 150 kilometers per hour.
The Firefly model went on pre-sales in China on December 21 for RMB 148,800 yuan ($20,490). It is powered by a single motor from Nio's motor division, with a peak power of 105 kW. The Firefly model is scheduled for launch in April, as stated by Nio.
The Firefly model's battery technology is Lithium Iron Phosphate (LFP), and it is a five-seater with dimensions of 4,003 mm in length, 1,781 mm in width, 1,557 mm in height, and a wheelbase of 2,615 mm. The Firefly model, identified as NAL7000BSEVY1, is a battery electric vehicle (BEV) that supports battery swap.
In conclusion, the Firefly's exact battery capacity and energy efficiency are not yet publicly detailed, but based on NIO’s strategy and technology showcased in related models, it likely aims for competitive efficiency with a battery pack suitable for subcompact EV needs, positioning it as an aspirational alternative in its class. Meanwhile, NIO's other sub-brands like Onvo provide strong energy efficiency and battery capacity benchmarks that meet or exceed Tesla Model Y’s standards, indicating that NIO is targeting both range and efficiency in its EV lineup.
- The NIO Firefly, unveiled in April 2025, is a new entry in the electric vehicle (EV) market, positioning itself as an upmarket, aspirational small EV.
- The Firefly's battery pack, supplied by Sunwoda, marks the debut of Sunwoda as a NIO supplier, with a capacity of 42.1 kWh.
- NIO's Onvo L90, a sub-brand SUV, offers energy consumption of 14.5 kWh/100 km for its Rear-Wheel Drive version, thanks to an 85 kWh battery pack built on a 900V architecture.
- The NIO ET9, a flagship sedan, boasts a 100 kWh swappable battery and a dual-motor All-Wheel Drive system, signifying a premium and high-capacity battery setup.
- NIO claims the L60 model provides better energy efficiency than Tesla’s Model Y, partly due to superior aerodynamics in its class.
- The Firefly model, priced at RMB 148,800 yuan ($20,490), is a five-seater with a CLTC range of 420 kilometers, consuming about 10 kWh of electricity per 100 kilometers.
- The Firefly model, scheduled for launch in April, is powered by a single motor from Nio's motor division, with a peak power of 105 kW.
- The Firefly model features Lithium Iron Phosphate (LFP) battery technology, and it measures 4,003 mm in length, 1,781 mm in width, 1,557 mm in height, and has a wheelbase of 2,615 mm, making it a compact EV.