According to a car repair technician at Ninety Eight Auto (Cat Lai ward, Ho Chi Minh City), many car models currently arrange batteries in different positions in the engine compartment. Therefore, when the battery runs out of power, the battery boosting needs to be carried out in accordance with the connection points specified by the manufacturer.
In particular, for car models with batteries placed in the rear, under the floor, or in difficult-to-reach locations, car owners should not wire themselves if they have not accurately determined the location of the piles and connection points.
Some car models arrange batteries in the luggage compartment or under the car floor. When needing to open the battery, car owners may have to approach the battery directly, sometimes needing to remove or lift the cover according to the manufacturer's instructions.
Meanwhile, many car models are designed with auxiliary connection pins in the engine compartment. When opening the hood, the car owner may not see the battery but only see the positive pin protected by the lid. This pin is arranged to facilitate the activation of the cylinder.
When using auxiliary connection pins, one end of the (+) positive wire connects to the positive electrode of the weak battery or auxiliary positive pin specified on the vehicle. The other end connects to the positive electrode of the support power source.
With the sound cable (-), one end connects to the negative electrode of the power source support, the other end connects to the sound connection point (mass) specified by the manufacturer on the battery-out car. Do not arbitrarily clip the sound cable into any metal position on the car body or engine.
The location of the sound connection point and how the wires are connected may vary between car models. Therefore, car owners should refer to the user manual to accurately identify the connection points before performing.
Extremely incorrect firing, letting the two ends of the wire touch each other or connecting the wire improperly can cause sparks, short circuits and in some cases damage to electrical and electronic parts. If not sure, the car owner should ask for rescue, garage or professional support.
Risks can also arise if using a power source or tank booster that is not suitable for the vehicle's requirements. Therefore, experience from another vehicle should not be applied, as the connection position and process may be different.
For hybrid and electric vehicles, car owners should not arbitrarily operate with high voltage systems. In many cases, start assist only involves low voltage 12V systems, but the location and implementation process must still comply with the manufacturer's instructions.
In addition, car owners need to find the cause of battery drain. Forgetting to turn off headlights, interior lights or electrical appliances for a long time are common causes.
After locking the car, some electronic systems can still maintain a small power consumption in standby mode. However, if the light or electrical device continues to operate, the battery may discharge quickly and run out of power.
Deeply discharged batteries repeatedly can reduce the ability to hold electricity and shorten the lifespan. Therefore, before leaving the car, drivers should check the lights and unnecessary electrical appliances.
If the car is out of battery, it is necessary to correctly identify the positive pile and the negative connection point according to the manufacturer's instructions before starting the cylinder. When uncertain, asking for professional support is a safer solution.
