The service life of a group of electric vehicle batteries is not only related to the battery product quality of the manufacturer and the system configuration of the electric vehicle, but also to the use and daily maintenance of consumers. So, how to distinguish the new and old lead-acid batteries of electric vehicles?

According to experts in the industry, when buying batteries, consumers should first check whether the outer packaging of the electric vehicle battery is damaged or has marks of disassembly, then open the packaging to see the appearance of the battery, and pay attention to check whether there are scratches and scratches on the surface and whether there is rust on the positive and negative metal terminals of the battery. In addition, many brands of electric vehicle batteries will be attached with anti-counterfeit labels at the junction of the battery shell when leaving the factory. Pay attention to check whether the anti-counterfeit label is normal. If necessary, you can scrape off the anti-counterfeit label password coating to verify the authenticity. Finally, we should see the production date printed on the battery clearly.

One of the batteries of my electric car is broken. I just want to replace the broken one. Can I use both new and old batteries of my electric car? Many consumers have such doubts.

It is understood that new and old batteries cannot be used together. The disadvantage of using old batteries together with new batteries is that a person who works fast and a person who works slowly work together is the same. Slow work can't keep up with fast work, and fast work can also be frustrating. The original new battery is packaged and delivered after assembly during production. If it is used together with the old battery, the performance of the new battery will be affected and the new battery will deteriorate prematurely! 1： Look at the outer package

Check whether the outer package of the electric vehicle battery is damaged or has any traces of disassembly, then open the package to check the appearance of the battery, and check whether there are scratches, scratches on the appearance surface and whether there is rust on the positive and negative metal terminals of the battery

2： Look at the security label

When electric vehicle batteries leave the factory, they will be attached with anti-counterfeit labels on the butt joints of the battery shell. When buying, you should check whether the anti-counterfeit labels are well affixed. You can also scrape off the anti-counterfeit label password coating to verify the authenticity

3： Check whether the shell is bulging

The battery shell of the new electric vehicle is very smooth. If you find that the shell is not flat, you should pay attention to it. You can find a table or floor with a horizontal surface and place the battery face down. If the battery can rotate, it means that the battery is not flat, and it is an old battery