The lead-acid battery, although it has no name in ancient times, is deduced by today's intention, and is similar to the energy storage of various things.

In the past, craftsmen made tools, and studied material resources, hoping for a wonderful way to store energy. Lead, thick texture, stable and can respond to various things. Acetic acid, with acid properties, can produce lead energy. The combination of the two, thus forming the embryonic form of lead-acid batteries.

Its system, with lead as the pole, is immersed in the liquid of acetic acid. The exchange of electricity, lead and acetic acid can be used to store electricity. When used, lead loses electrons, and the ions of sodium acetate migrate, generating current for use in equipment. When not in use, apply electricity in the opposite direction, and the lead will regain electrons and the battery will regain energy.

Lead-acid batteries are widely used, which can be used for the movement of boats and vehicles, and can be used for the performance of equipment. Although their performance is not as subtle as it is today, at that time, it was also a good recipe for energy storage, helping craftsmen's work and benefiting the industry of all people. It is actually a treasure of energy storage.