Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
2. The engine
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
7.1. The general data
7.2. Power supplies system
7.2.1. The storage battery
7.2.2. Switching-off and connection of the storage battery in a motor compartment
7.2.3. Switching-off and connection of the storage battery in a luggage carrier
7.2.4. Removal and installation of the storage battery in a motor compartment
7.2.5. Removal and installation of the storage battery in a luggage carrier
7.2.6. Check of reliability of fastening АКБ
7.2.7. Accumulators with Ğa magic eyeğ
7.2.8. Measurement of pressure of rest
7.2.9. Check of level of electrolit – АКБ with stoppers
7.2.10. Check of density of electrolit in all sections – АКБ with stoppers
7.2.11. Pressure measurement under loading
7.2.12. Gymnastics of the storage battery
7.2.13. Strongly discharged АКБ
7.2.14. Fast gymnastics of accumulators
7.3. The generator
7.4. A starter
7.5. Relay blocks, sockets and safety locks
8. A body
9. Electric equipment schemes
 







7-2-11-izmerenie-napryazheniya-pod-nagruzkojj.html

7.2.11. Pressure measurement under loading

At accumulator check under loading start process is feigned at low temperature. At check in a chain the big current proceeds, the voltage reduction, depending on accumulator capacity, only to the accumulator of the minimum value set by a tester is thus supposed.
If the accumulator is faulty or charged poorly pressure of the accumulator will fall very quickly below the set minimum pressure.
If pressure falls below the minimum value the accumulator is subject to replacement.
After the executed check this low value of pressure remains during longer period; pressure again rises only slowly.

Procedure for test
Disconnect a wire of weight from АКБ at the switched off ignition.
Connect clips of plugs of a tester of the accumulator to accumulator poles.
Clips should have good contact to an accumulator pole.
Establish a loading current on an accumulator tester.

THE NOTE
The loading current is established depending on a current of cold scrolling of the accumulator (it is specified on the accumulator case).

Inspect the accumulator under loading.
The result of check is displayed approximately through 20 with. On listing.


7.2.10. Check of density of electrolit in all sections – АКБ with stoppers

7.2.12. Gymnastics of the storage battery