Two days ago, I told you that the battery of my old Corolla car has 8 years of experience.
Therefore, when a friend asks, what do we need to pay special attention to when changing the battery, I will tell you.
Battery parameters
First, let's look at the parameters of the battery. Our national standard battery is printed with a set of numbers, and the 6 in front of this group of numbers represents that it is composed of six battery grids.
Each battery compartment is 2V, which is exactly 12V. The letter Q represents the use, Q means the car battery, if it is a motorcycle is M, the back W represents the maintenance-free battery.
The next number is very important, 60 is 60ah, in terms of its capacity. Then the following number, 450, means that its cold start current is 450A. Then there are some places with a letter at the end, for example, the common one is l, and some are not marked, and the l means that its positive pole is hung on the left.
The following set of data 55D23, 55 represents the AH of the battery, and the letter D represents the width of 173 cm, height 202 cm, and then the back of this 23, means that the front length of the battery is 23 cm.
The most important of these numbers is 60 and 450 at the end.
Some are 475 or 500 or even greater. 60 represents the capacity of the battery, that is, the larger the value, the larger the capacity of the battery, the more expensive the battery, and the higher the cold start current, the more expensive the battery.
The battery cannot be replaced lower than the value of the original car battery
Therefore, when we change the battery, the two values of the battery you have replaced must not be lower than the value of your original car.
If it is low, then the battery is easy to collapse, because the battery is in the case of power loss or power supply for a long time, it is easy to collapse.
So, can these two numbers be changed to be larger?This is no problem, and it can be changed to a bigger one. But after this number is larger, for example, if you change from 60 to 75, then the volume of the battery is larger, and at this time, you may not be able to fit in this battery pit.
But we have some cars, when its battery comes out, it cuts corners, the battery pit is so big, the battery is so small, so you can completely change to a bigger battery, as long as the battery pit can be put in, it has no problem.
Summary
In this way, the car battery will be better to use, that is, the capacity is larger, and it is not easy to lose power. Relatively speaking, the battery will have a longer lifespan, and if you know these two numbers, then when you change the battery, it is basically not easy to have problems.
Especially you don't blindly try to be cheap, some of the same brand, it gives you cheap, but you pay attention, look at its value, it's small, then when the time comes, you can't do it for a year, your battery will be broken.