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Definition: The electrode is mainly made of lead and its oxide, and the electrolyte is a kind of battery with sulfuric acid solution. English: Lead-acidbattery. In the discharge state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the charging state, the main components of the positive and negative electrodes are lead sulfate. It is divided into exhaust batteries and maintenance-free lead-acid batteries.

The battery is mainly composed of tubular positive plates, negative plates, electrolyte, separators, battery slots, battery covers, poles, liquid injection covers, etc. The electrodes of the exhaust battery are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. The main advantages are stable voltage and low price; The disadvantages are low specific energy (i.e. energy stored per kilogram of battery), short service life and frequent routine maintenance. The life span of an old-fashioned ordinary battery is generally about 2 years, and the height of the electrolyte needs to be checked regularly and distilled water added. However, with the development of technology, the life of lead-acid batteries has become longer and the maintenance is simpler.

The most obvious feature of a lead-acid battery is that it has a plastic seal on top that can be unscrewed, and there are vents on it. These fill caps are used for filling pure water, checking electrolytes and venting gases. Theoretically, lead-acid batteries need to check the density and level of the electrolyte at each maintenance, and if there is a deficiency, distilled water needs to be added. However, with the upgrading of battery manufacturing technology, lead-acid batteries have developed into lead-acid maintenance-free batteries and gel maintenance-free batteries, and there is no need to add electrolyte or distilled water in the use of lead-acid batteries. It is mainly used to produce oxygen at the positive electrode, which can be absorbed at the negative electrode to achieve oxygen circulation, which can prevent the reduction of moisture. Lead-acid water batteries are mostly used in tractors, tricycles, car starters, etc., while maintenance-free lead-acid batteries are more widely used, including uninterruptible power supply, electric vehicle power, electric bicycle batteries, etc. Lead-acid batteries are divided into constant current discharge (such as uninterruptible power supply) and instantaneous discharge (such as automobile starting battery) according to the application needs.

Chinese name: lead-acid battery, foreign name: Lead-acidbattery, alias lead-acid water battery

Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering  low speed vehicle and solar power storage system for customers all over the world.

Our products are widely used in various fields such as electric bicycles, electric motorcycles, electric scooters, electric forklifts, outdoor and home energy storage, electric tools, wireless vacuum cleaners, smart homes, security, medical and other fields. We provide a full range of intelligent manufacturing and services, including project evaluation, scheme design, battery pack structure design,  battery pack production, as well as product inspection and after-sales service, aiming to efficiently provide customers with the most competitive lithium battery solutions.