In Season 2 (2015–16), the SRT_01E was opened up for private development by the teams when it came to the motor, gearbox and suspensions.
[10] For the 2018–2019 season, the specifications for the battery was a weight of 250 kg and 54 kWh energy, and peak power was 250 kW.
The cells (18650VTC6) was to be made by Murata Manufacturing, the integration by Lucid Motors, and track handling by McLaren.
[20] The specifications for the 3rd generation Formula E cars are: During the first season in 2014–2015, all teams used a Hewland 5-speed sequential gearbox operated by the driver semi-automatically via paddles on the steering wheel similar to other racing series.
[21] A transmission with multiple gears can help keep the motor in its most efficient operating range, but whether an electric car needs multiple gears in the transmission depends heavily on the torque curve of the motor at different rotational speeds (r/min).