jump start Citroen DS5 HYBRID4 2014 1.G Owner's Manual
Page 241 of 380
239Practical information
DS5-HYBRID_EN_CHAP08_INFO PRATIQUES_ED02-2013
  After refitting the battery, the Stop & Start system will only be active after several hours depending on the climatic conditions and the state of charge of the battery (up to about 8  hours).  
  When your vehicle's battery is discharged, the engine can be started using a slave battery (external or on another vehicle) and jump lead cables.  
Starting using another 
battery 
  First check that the slave battery has a nominal voltage of 12 V and a capacity at least equal to that of the discharged battery.  Do not try to start the engine by connecting a battery charger.  Do not disconnect the (+) terminal when the engine is running.  
   Remove the plastic cover from the (+) terminal, if your vehicle has one.    Connect the red cable to the positive terminal (+) of the flat battery  A , then to the positive terminal (+) of the slave battery  B .    Connect one end of the green or black cable to the negative terminal (-) of the slave battery  B  (or earth point on the other vehicle).    Connect the other end of the green or black cable to the earth point  C  on the broken down vehicle (or on the engine mounting).    Start the engine of the vehicle with the good battery and leave it running for a few minutes. 
   Operate the starter on the broken down vehicle and let the engine run    If the engine does not start straight away, switch off the ignition and wait a few moments before trying again.    Wait until the engine returns to idle then disconnect the jump lead cables in the reverse order.    Refit the plastic cover to the (+) terminal, if your  vehicle  has  one.    
   Disconnect the battery from the vehicle.    Follow the instructions for use provided by the manufacturer of the charger.    Connect the battery starting with the negative terminal (-).    Check that the terminals and connectors are clean. If they are covered with sulphate (whitish or greenish deposit), remove them and  clean  them.   
          Charging  the  battery  using 
a battery charger