It may be that the specifications and prices of the batteries after replacement are different, and some black-hearted businesses may also sell refurbished batteries.
However, with the use of cars, the aging of electrical appliances will also lead to the increase of automobile power consumption. We must see how to deal with it.
Specifications may be lowered. First of all, when some repair shops replaced our batteries, they thought they were "usable" and the specifications did not match us completely.
There is a paper "Matching Calculation Method of Automotive Lead-acid Battery" in the magazine "Automotive Practical Technology", which says.
As one of the core components of automobile, lead-acid battery plays an important role. If it is not matched properly, it will lead to short standing time, easy power loss and difficult car starting.
When the output current is constant, the larger the rated capacity of the battery, the longer the discharge time. The reason is the same as our usual mobile phone charging treasure and electric bicycle, right?
A large-capacity charging treasure has a longer battery life after a single charge. Will my electric bike run further with two batteries?
What about "cold start current"? Determines the cold start capability of this battery.
If the cold start current of the new battery is lower than that of the original battery, the engine may not start even if the voltage and rated capacity meet the requirements.
It's like: you used the charger of the earliest iPhone to charge your mobile phone. Now this iPhone seems to be ok, but it's a little long.
You plug this charging head into the iPad Pro to charge it, and it won't be full until you wake up the next day. That's the feeling.
The price may be lower. In addition, even if the specifications are the same as the original battery, the price may be different, the warranty conditions are different, and the service life is different.
Just like: Audi and Alto, both sound the same, all have four wheels, but they still feel different when driving, right?
In addition, there are some cars that start and stop automatically, and the original battery will be relatively high-end and more expensive.
If you go to the garage, you may say, "I want to exchange it for a better one." "valta, the most famous." "change."
There are expensive and cheap ones in valta, so don't just ask about the brand.
Jilin University has a master's thesis "Research on Modeling, Simulation and Verification of Automobile Start-Stop System".
For most gasoline-powered vehicles, the start-stop system includes an independent enhanced starting motor, a generator and an AGM battery with longer service life.
To put it simply: you get what you pay for, and the battery you replaced later feels not durable. It is possible that your replacement is not as good as the original one.
Maybe I bought a refurbished battery. Finally, there is another situation: some black-hearted businesses sell refurbished batteries.
The technical threshold of automobile battery renovation is not so high and the difficulty is not great.
Mainly: change the electrolyte, then change a plate, and then repeatedly charge and discharge to improve the capacity before selling.
The life of this kind of battery is definitely not as good as the original brand-new original battery.
He said: "When your car is old, its performance will decline." Don't listen to him. Go to jail.
It's really hard for us to tell the difference. You gave me a big black square, not to mention black new silver. I don't know if something so dark is in my car.
So, there is no choice but to choose a brand store or a 4S store or an online flagship store in a stupid way, right? This is the only stupid way.
In addition to the battery itself, with the use of the car and the increase of the number of years, the power consumption of various electrical appliances in the car will indeed be greater than that of the new car, which will also cause the feeling that the battery is not as durable as before.
We have ruled out the black-hearted merchants in front of the battery, which may increase their power consumption.
There is a paper "Common Faults and Maintenance Precautions of Automobile Electrical Equipment" in the Journal of Automobile Maintenance.
At present, in automobile maintenance, electronic and electrical failures account for about 50% and half, and aging or performance degradation of components is a very important factor.
I don't remember, for example, the wiring of the electronic components of the car. We see this line, right?
Aging, degumming, copper wire exposed, under the action of water or steam, will corrode, the resistance will increase, the use is not great, and even more power consumption, which is the truth.
In addition, there are various motors in the car. After working for a long time, the bearing will accumulate a lot of dust and dirt. Anyway, it is too dirty to turn, or the resistance is greater than the original.
Well, there is a lot of resistance, which requires more driving force and more electricity, right?
It is the same as installing a computer. If you don't clean the dust, you will waste electricity. If it is heavy, it will crash. The same is true.
Finally, some car owners and friends added some gadgets themselves during the car use.
Driving recorder, ambient light, alarm, all kinds of things.
After flameout, it can be automatically turned off, and now it can basically be done.
But it is not automatically turned off as soon as it is turned off, and there may be standby time, which will also increase battery loss and shorten battery life.
There is a paper in "Automotive Electrical Appliances", which is mentioned in "Matching Design Method of Automotive Batteries".
Systems that need to remember time, such as car driving recorders, will generate electrostatic current, even if it is in a dormant state, there is still electricity when saving electricity.
There are also some recorders, some with parking monitoring. Push and touch, get up again, and you can take pictures again.
Relatively speaking, if you stop for a long time, it is easier to lose power.
Therefore, once you think that the new battery is not as durable as the original battery, you might as well check the extra electrical appliances in the car to see if there are any plugged in.
Maybe you don't even want to use it. Electricity is still being wasted there.
There are many reasons why the replaced battery is not durable, so generally speaking, the replaced battery feels not durable. It may be that the specifications and brands have indeed changed, or it may be hacked by the merchants.