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Even when not in use, the car's battery can still run out due to the need to maintain power for a number of systems such as door locks, anti-theft, clock, warning lights, etc.
For vehicles equipped with a smart key system (Kos-Key), when the battery is exhausted, you cannot open the door using the remote control.
However, manufacturers have taken this possibility into account and have a very simple solution to open the car door. That is, just take the mechanical key attached to the remote control to open the lock. Usually this lock will be located on the right front door, after opening the door you will be able to open the hood to replace the battery.
Drivers can "hook" a battery from another car by following these steps:
Step 1: Get help from another car
Step 2: Clean the battery terminals: Use a cloth to wipe away rust and dirt to ensure the best electrical conductivity.
Step 3: Turn off all unnecessary electrical devices: Turn off all unnecessary electrical devices such as air conditioners, CD lights, DVDs... before connecting the battery to ensure the battery can be charged and activated easily.
Step 4: Proceed to comment
Connect the positive (+) terminal of the dead battery to the positive (+) terminal of the booster battery. Be careful to avoid the clamps touching each other or the vehicle body, which can cause fire or explosion.
Connect the negative (-) terminal of the battery to any metal plate on the vehicle with the dead battery. The metal plate acts as a generator base to connect the circuit.
Car batteries act as a secondary power source, operating based on the storage process, converting energy into electricity to supply equipment on the vehicle.
If the battery does not have enough power, the car will not start, the car will stall and the car doors will not open. A car with a dead battery will not be able to operate.
You can recognize a dead car battery by the following signs:
Battery warning light on: The warning light on the dashboard will display a warning when the battery is having a problem.
Weak starter motor, difficult to start, erratic starting
Low battery fluid level
Car battery is swollen and leaking electricity
Engine does not turn, dashboard lights do not light up
TB (according to VTC)