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If this is not done, the plates become even harder and their ability to absorb charge is impaired, thus resulting
in a loss of power reserves.
Procedure for charging sulphated exhausted batteries
Sulphated exhausted batteries must be charged as follows using a low charging current:
- Approx. 5 % of battery capacity, i.e. for a 60 Ah battery, the charging current is approx. 3 A (amps).
Charge battery => Page
17
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The charging voltage (Umax) must not exceed 14.4 V.
Rapid charging is never to be implemented on exhausted batteries.
2 - Removing and installing alternator
2.1 - Removing and installing alternator
Attention:
◆ Disconnect battery earth strap before working on electrical system.
◆ On vehicles fitted with telematics system, activate telematics control-unit service mode before disconnecting
battery.=>Radio, Telephone, Navigation; Repair Group 91
- Heed (if necessary obtain) code for vehicles with encoded radio/radio navigation system (RNS).
- Disconnect battery earth strap with ignition switched off.
Note:
Action to be taken after re-connecting power supply => Page
7
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2.2 - 1.6 l and 1.8 l engine
Special tools and workshop equipment required
◆ Mandrel T10060
Audi A3 1997 ➤
Electrical system - Edition 10.2003
1.13 - Charging battery
19