As a rule, a similar question arises in the cold season in frosty weather, when, for some unknown reason, the battery is significantly discharged overnight, and starting the engine in the morning is much more difficult. The reason for this may be an unauthorized leakage of current in the vehicle's on-board network.
Necessary
Ammeter
Instructions
Step 1
The modern car owner wants to have at his disposal not only a banal means of transportation, but also an office on wheels or a mini-concert hall. The emergence of such needs has led to numerous developments in the field of electrical devices.
Step 2
Equipping cars with sophisticated electronic equipment requires increased energy consumption. And an illiterate connection of energy consumers to the on-board network of a car often leads to unauthorized current leaks, which intensively discharge the battery.
Step 3
To check the power consumption in the "rest" mode, when all consumers are turned off in the car and the key is removed from the ignition switch, any cable is removed from the battery. An ammeter is connected in series between the battery terminal and the vehicle cable.
Step 4
According to the readings of the device, the level of current flow through the circuit is determined. If the ammeter scale displays data in the range of up to 70 milliamperes, then this is within the normal range. Any excess of this parameter indicates an unauthorized withdrawal of electricity.
Step 5
To identify the circuit through which the current is leaking, the fuse links are removed one by one from the fuse box, while observing the changes in the ammeter readings.