A lead-acid battery is a type of battery where the electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. Lead acid batteries have a long development history, so their cost is low and they still have recycling value after the battery life expires.

　　The advantages of lead-acid batteries include:

　　Relatively inexpensive and cost-effective

　　Convenient maintenance and repair, easy to continue using with minor repairs

　　It can be recycled and used, and after being worn out, it can be exchanged for a new set of batteries at an electric vehicle store to make up for the price difference

　　Good low-temperature discharge ability, able to maintain a certain amount of electricity supply in cold climates

　　Good safety, less prone to chemical reactions or explosions when subjected to external shocks

　　The disadvantages of lead-acid batteries are:

　　Large volume and weight, occupying a lot of space, increasing the burden on vehicles

　　Limited battery capacity and short range

　　Short lifespan, typically within 400 deep fills and releases, with a lifespan of around two to three years

　　The heavy metals produced can easily cause environmental pollution

　　It has a memory effect and needs to be filled regularly

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