Battery Trickle Charging

→ Always connect charging cables/jump leads to the external power supply for jump-lead starting.

Information 

• When working or carrying out tests on the vehicle or when the vehicle is in the workshop, a battery charger with a rated current of at least 40 A must be connected. 
• As soon as the vehicle is unlocked, e.g. the vehicle is in the workshop or salesroom, it must be trickle charged with a battery charging device. 

→ "Workshop Equipment and Special Tools Manual" Battery chargers.

1. External power connection
   1. 1.1. First, connect the positive cable from the charger to the positive terminal -+-  .
   2. 1.2. Then connect the negative cable from the charger to the ground point for jump-lead starting -  .
      Fig 1: Identifying Battery External Power Connection

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Switch off all loads.
3. Switch on the charger.