5. When buying, you must choose a new battery with the same nominal voltage - 12 V, and capacity (measured in ampere-hours (Ah)), that the replacement battery had.
6. Depending on the generator installed on the engine, the engine starting system and the number of electricity consumers, a battery with a capacity of 36 Ah / 44 Ah / 55 Ah / 60 Ah / 70 Ah can be installed on the car. The battery capacity corresponding to a particular car is indicated in the technical documentation attached to it upon sale. If during operation it is necessary to change the number of electricity consumers, for example, when installing new equipment, consult an Opel service station, they will advise in detail on the possibility of such changes, help select, install and make appropriate adjustments to the motor electrical equipment. Otherwise, the use of a battery with a smaller capacity than the required one will lead to a constant overcharging of the battery, boiling of the electrolyte and gradual destruction of the battery plates. As a result, battery life will be drastically reduced. In addition, the output capacity may not be sufficient to start the engine, especially during cold starts at low outside temperatures. The purchase of a battery larger than the nominal capacity does not give a gain in terms of its service life, because. constant undercharging will lead to sulfation of the plates. Using a battery with an excessively high starting current can burn the starter windings.
7. Modern technology allows the production of batteries that reliably ensure the functioning of all systems with minimal maintenance (see Chapter 1, Section 11). If you follow the rules of operation, the battery lasts for 4-5 years. However, it must be borne in mind that the control of the engine on modern vehicles, including the models discussed in this manual, is carried out through electronic systems. The number of electronic equipment has also increased to ensure the convenience and comfort of the driver and passengers. All electronic equipment is very demanding on the constancy and magnitude of the voltage in the mains. Therefore, if there is a need for frequent charging of the battery, its starting properties have deteriorated, etc. don't put off purchasing a new battery - this will save you money on repairing much more expensive electronic systems.
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