Part of the electric equipment installed on the car demands a continuous power for ensuring their working capacity or preservation of memory, for example, of the control unit of the engine which can be lost at a detachment of plugs from the rechargeable battery.

Therefore every time at a detachment of plugs from the rechargeable battery for an exception of unforeseen consequences it is necessary to remember the following:

– the control unit of the engine will lose information brought in memory, such as operation of the engine at a frequency of idling and various operational modes, and also all found codes of malfunctions. After a detachment and connection of plugs of the rechargeable battery the control unit will need some time for restoration of all lost parameters;

– on models with electric blocking of locks surely take a key from the lock of ignition and you keep it around that it was possible to open the car after connection of the rechargeable battery and casual operation of blocking of locks.

– use the devices known as "keepers of memory". They will help to avoid some of above-mentioned problems. As a rule, this device representing the battery with a small capacity turns on in the socket instead of the lighter for the period of a detachment from the rechargeable battery. "Keepers of memory" provide power supply of the control unit of the engine for saving information and codes of the malfunctions brought in memory of the block and also ensure functioning of hours and keep the frequencies of radio stations brought in memory of the radio receiver.

When using "the keeper of memory" keep in mind that tension moves to the electric equipment of the car therefore before work cut off power the corresponding electric chain or a component.

– cars are equipped with security systems (SRS) including safety cushions and natyazhitel of seat belts. Before work about sensors of blow, the dashboard and a steering column disconnect at first negative, and then positive plugs from the rechargeable battery and wait 2 min. It will exclude unauthorized disclosure of safety cushions and operation of natyazhitel of seat belts which can put injuries.