There are three types of batteries commonly used in the market, namely ordinary batteries, maintenance-free batteries and dry-charge batteries.
Ordinary battery: The plates of ordinary batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; its disadvantages are low specific energy (that is, the electric energy stored per kilogram of battery), short service life and frequent daily maintenance.
Maintenance-free battery: Due to its structural advantages, the maintenance-free battery consumes very little electrolyte. The service life is generally twice that of ordinary batteries. There are also two types of maintenance-free batteries on the market: the first type requires no maintenance (adding supplementary liquid) after adding electrolyte at the time of purchase; the other type is that the battery itself has been filled with electrolyte and sealed when it leaves the factory. , the user cannot add refill at all.
Dry-charge battery: its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has a high power storage capacity. In a completely dry state, it can save the obtained power within two years. When used, Just add electrolyte and wait 20-30 minutes before use.
What is the difference between maintenance-free batteries and ordinary batteries?
1. Life span is different
Due to its own structural advantages, the maintenance-free battery consumes very little electrolyte, and basically does not need to replenish distilled water within its service life. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice that of ordinary batteries.
2.Different materials
Traditional batteries are made of lead-antimony alloy, while maintenance-free batteries are made of lead-calcium alloy. The former uses antimony and the latter uses calcium. This is the fundamental difference between the two.
3.The phenomenon is different
Different materials will produce different phenomena: traditional batteries will lose liquid during use, this is because the antimony on the grid will pollute the spongy pure lead on the negative plate, which will weaken the reaction in the battery after it is fully charged. Electromotive force, causing excessive decomposition of water.
A large amount of oxygen and hydrogen escape from the positive and negative plates respectively, reducing the electrolyte. Replacing antimony with calcium can change the counter electromotive force of the fully charged battery, reduce the overcharge current, and reduce the gasification speed of the liquid, thereby reducing the loss of the electrolyte.
Compared with traditional batteries, maintenance-free batteries do not need to add any liquid, have less corrosion on wiring piles and wires, strong overcharging resistance, large starting current, and long power storage time.
Hubei Lham Energy Tech Co., Ltd. focuses on battery accessories and supporting related businesses. It has deep technical accumulation and practical technology patents in the fields of safety, convenience and maintenance of automotive batteries and industrial batteries. The company’s current main products are: battery status indicator, battery safety valve (exhaust plug), battery equalizer, waterproof breathable valve, forklift battery automatic water replenisher, battery water shortage alarm, battery water gun and other products. For more questions about battery water replenishment and maintenance, please pay attention to our company’s news.