Porsche · digital presskit
Lithium-ion battery with plug-in charging system
The traction battery in the 918 Spyder is more powerful than all other electrical energy stores currently being used in hybrid vehicles: At 1.7 kW/kg, it has the highest specific power of all hybrid batteries and delivers an extremely high power figure of 230 kW during the electric boost.

To meet the high performance requirements of the electric motors, the individual cells of the traction battery have been developed specifically for the 918 Spyder and designed for maximum performance. The battery is housed crosswise in the floor of the monocoque behind the seats. It can be charged via the onboard charger with AC supply or via the optional Porsche quick-charge station with direct current. The charge socket is integrated into the right B-pillar behind a flap.

The key data:

Energy content kWh 6.8
Nominal voltage V 385
Maximum power output kW 230 (70–100% charged)
Maximum power input kW 230 (0–30% charged)
Weight kg 138
Specific power kW/kg 1.7
Charging time, 230V/10A (AC) Hours 3.8
-Industrial socket (AC) Hours 2.3
-Quick charging (DC), 20 kW Minutes 25
Warranty Years/km 7/100,000

Pressure tank prevents emissions during electric driving

Even with a conventional fuel tank, the 918 Spyder takes unconventional routes: Using a lockable pressure tank, the fuel vapours are prevented from escaping from the tank to safely rule out emissions during electric driving. Depending on the pressure inside the tank, the tank shutoff valve is opened when driving using the combustion engine and the fuel vapours in the engine are combusted. Before filling up, the driver must depressurise the fuel tank using the tank button, with the vapours being absorbed in an activated charcoal filter.

Thermal management: Five separate cooling circuits

To guarantee constant, optimum performance under all driving conditions, the 918 Spyder has an efficient thermal management system designed to cool all components in the drive train. To meet the varying ideal temperature ranges
of the different components, five separate cooling circuits with a total of seven air heat exchangers flow through the super sportscar:

  Cooling circuit
Heat exchanger
Combustion engine Engine oil Rear right 150°
Combustion engine High temperature
Front right and left
Rear left
Transmission High temperature
Oil exchanger/water heat
exchanger on the transmission
Electric motors,
power electronics
Medium temperature
Rear right 85°
Battery Low temperature Via air-conditioning system 30°
Interior Air-conditioning system Front right and left  

Press film
Porsche 918 Spyder