Purchasing a new battery (Opel Corsa C)

5. When purchasing, it is necessary to select a new battery with the same nominal voltage - 12 V, and capacity (measured in ampere-hours (Ah)) as the battery being replaced.

6. Depending on the generator installed on the engine, the engine starting system and the number of electrical consumers, the vehicle may be equipped with a battery with a capacity of 36 Ah/44 Ah/55 Ah/60 Ah/70 Ah. The battery capacity corresponding to a specific vehicle is specified in the technical documentation supplied with it upon sale. If during operation it is necessary to change the number of electrical consumers, for example when installing new equipment, consult an Opel service station, where they will provide detailed advice on the possibility of such changes, help select, install and carry out the appropriate adjustments to the engine electrical equipment. Otherwise, using a battery with a capacity lower than required will lead to constant overcharging of the battery, evaporation of the electrolyte and gradual destruction of the battery plates. As a result, the battery life will be sharply reduced. In addition, the output capacity may be insufficient to start the engine, especially during a cold start at low outside temperatures. Purchasing a battery with a capacity larger than the nominal capacity does not provide any gain in terms of its service life, since Constant undercharging will lead to sulphation of the plates. Using a battery with an excessively high starting current is fraught with burning out the starter windings.

7. Modern technologies make it possible to produce batteries that reliably ensure the functioning of all systems with minimal maintenance work (see Chapter 1, Section 11). If the operating rules are observed, the battery will serve for 4-5 years. However, it should be borne in mind that the engine control on modern cars, including the models considered in this Manual, is carried out by means of electronic systems. The number of electronic equipment to ensure the convenience and comfort of the driver and passengers has also increased. All electronic equipment is very demanding on the constancy and magnitude of voltage in the electrical network. Therefore, if there is a need for frequent charging of the battery, its starting properties have deteriorated, etc., do not delay in purchasing a new battery - this will save on the repair of much more expensive electronic systems.