Do-it-yourself battery replacement matters need to remember the positive and negative

As one of the consumables of the car, the design life of the car battery is 2 to 3 years, and some car owners will say that they have not replaced it for 5 or 6 years. Generally, it needs to be replaced before the power is insufficient to charge, so how can the owner replace the car battery by himself?

First of all, of course, you must choose a battery of good quality. Generally speaking, choose a battery with more starts and strong current output, which can support the power consumption of on-board electrical appliances.

Before removing the old battery, be sure to turn off the ignition switch and all electrical appliances. If the seat position and steering wheel position on the car have a memory system, it is also recommended that the owner record the relevant information. When disassembling the old battery, it must be operated in the order of the negative electrode first and then the positive electrode. Once the order of the owner is reversed, it is easy for the disassembly tool screwdriver to directly connect the battery because it touches the body, resulting in a short circuit of the battery.

On the contrary, when installing a new battery, you must first connect the positive pole and then the negative pole. After confirming the installation, run the engine for a while to fully charge the battery, so as to avoid the trouble of insufficient power.

The installation of the battery is relatively simple, and the owner can replace it by himself.