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Preparations for back-up power supply of battery > < Charging battery

A4 Mk3

Preparations before charging battery
Preparations before charging battery
Procedure
  WARNING
Risk of explosion due to a discharged battery with „magic eye“.
The battery must NOT be checked or charged if the indicator of the „magic eye“ is colourless or yellow. Do NOT boost start the vehicle. There is a risk of explosion when checking or charging the battery or boost starting the vehicle. The battery must be renewed.
Before connecting battery charger, it is necessary to perform the following steps:
  Note
Wherever possible, the battery should be installed in the vehicle and connected while it is charged. Otherwise, the charging current will not be taken into account in the capacity calculation of battery monitor control unit -J367-.
–  Switch off ignition and all electrical equipment; then take out ignition key.
   
Vehicles up to 05.2008:
–  Unclip plenum chamber cover -2- and detach.
  Note
Disregard -items 1, 3- and -arrow-.
  A92-10115
Vehicles from 06.2008 onwards:
–  Lift off cover -1- at handle -arrow-.
  A27-10221
All vehicles (continued):
–  Release catch -arrow A- and open cover -arrow B-.
  A10-10851
–  Connect red clamp „+“ of battery charger to remote positive terminal -1- and black clamp „–“ to earth terminal -2-.
–  Plug in mains connector of battery charger and switch on battery charger → Electrical system; General information; Rep. gr.27.
–  Leave rear lid open during charging.
  A27-10109

Preparations for back-up power supply of battery > < Charging battery