Jump Lead Starting

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Both batteries must be 12 V batteries.

The capacity (Ah) of the battery supplying the power must not be significantly lower than that of the flat battery.

The flat battery must be properly connected to the vehicle electrical system.

First connect the positive cable to the positive terminal of the recipient battery, then to the positive terminal of the donor battery.
First connect the negative cable to the negative terminal of the donor battery, then to a suitable ground point on the recipient car.
A suitable ground point can be e.g. one specially for jump starts, a solid metal component or the engine block. The ground point should be as far away from the battery as possible.

If a suitable ground point is only present in the donor vehicle, then first connect the negative cable to the negative terminal of the recipient battery and then to the ground point of the donor vehicle.

If neither vehicle has a ground point, first connect the negative cable to the negative terminal of the donor battery, then carefully to the negative terminal of the recipient battery.
Have the engine of the vehicle supplying the power run at a higher speed.
Start engine. Do not spend longer than 15 seconds trying to start the vehicle with the jump leads - after 15 seconds have elapsed, wait for at least one minute.
Before disconnecting the jump leads, switch on high electrical loads in the recipient vehicle, e.g. rear window heater and interior blower, in order to reduce any voltage peaks on disconnection. The light must not be turned on.
Disconnect the two jump leads in reverse sequence when the engine is running.