Batteries come in different sizes, and the shape and size of batteries for cars, trucks, and transportation vehicles vary, so it is important to choose a battery that matches the vehicle for it to work properly. If the wrong size battery is used, it can lead to changes in current flow and damage the electrical equipment in the vehicle. There are two main categories of batteries that use the wrong group capacity, one is the use of too large capacity batteries and the other is the use of too small capacity batteries.
The larger the capacity of the battery means that the size of the battery will increase, the use of too large a battery may not fit into the battery compartment of the car, even if the battery is modified to fit into the battery compartment, may cause the terminals to contact with other metal parts, resulting in a short circuit of the battery.
If we unintentionally use a large capacity battery, it will generate too high a voltage, which can damage fuses or loads, and in severe cases can affect the alternator.
If the installed battery capacity is too small e.g. less than 12V, the alternator will charge the battery after we start the vehicle, which will lead to overcharging of the battery, affecting the service life of the battery and reducing the performance of the vehicle’s electronic equipment, and in severe cases, causing permanent damage to the electrical system.
If the capacity of the battery is too small, the power of the battery will be insufficient, which may put extra pressure on the starter motor. If we often drive the vehicle for short distances, we need to start the vehicle frequently, and the battery will run out of power, which will eventually cause the vehicle to fail to start.
The small capacity of the battery means that the battery is small in size, when installing a smaller battery, it will not be possible to fix it with the battery fixing equipment, the inability to fix it will lead to the battery moving and damaging the vehicle, and in serious cases, it will lead to the battery’s electrolyte leaking, causing major safety issues.
Batteries with too small a capacity can cause the alternator to overheat and cause long term damage, mainly because the alternator will quickly fill up a small capacity battery and the alternator will remain in operation.
The capacity of the battery should not be too large or too small, you need to choose the best battery according to the battery specifications and parameters required by the equipment used, in order to maximize the protection of the battery itself and the safety of the vehicle.
