There are three types of batteries commonly used in the market, which are ordinary batteries, maintenance-free batteries and dry-charge batteries.

1) Ordinary battery: the plate of ordinary battery is composed of lead and lead oxide, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and cheap price; Disadvantages are low specific energy (that is, electric energy stored per kilogram battery), short service life and frequent daily maintenance.

2) Maintenance-free battery: maintenance-free battery has very small electrolyte consumption due to its advantages in structure. The service life is generally two times of the ordinary battery. There are two kinds of maintenance-free battery on the market: the first in the purchase of a one-time plus electrolyte after the use of no maintenance (add supplementary liquid); The other is the battery itself has been added to the factory electrolyte and sealed, the user can not add supplementary liquid.

3) dry charge battery: its full name is dry charge lead-acid battery, its main characteristic is that the negative plate has a high storage capacity, in a completely dry state, can save the electricity in two years, when used, just add the electrolyte, such as 20-30 minutes can be used.

What is the difference between maintenance-free battery and ordinary battery?

1. Different life spans

Maintenance-free battery due to its advantages in structure, electrolyte consumption is very small, in the service life of the basic need to supplement distilled water. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice as long as that of ordinary batteries.

2. Different materials

Traditional batteries are made of lead-antimony alloy, maintenance-free batteries are made of lead-calcium alloy, the former with antimony, the latter with calcium, which is the fundamental difference between the two.

3. the phenomenon is different

Different materials will produce different phenomena: the liquid reduction phenomenon will occur in the process of use of traditional batteries, this is because the antimony on the grid will pollute the sponge-like pure lead on the negative plate, weaken the back electromotive force in the battery after full charge, resulting in excessive decomposition of water.

A large amount of oxygen and hydrogen escape from the positive and negative plates respectively, reducing the electrolyte. With calcium instead of antimony, you can change the back electromotive force of the fully charged battery, reduce the overcharge flow, liquid gasification speed is reduced, thus reducing the loss of electrolyte.

4. Different functions

Compared with the traditional battery, the maintenance-free battery does not need to add any liquid, less corrosion to the wiring pile and wire, strong resistance to overcharging, starting current, power storage time is long and so on.

Hubei Lham Energy Technology Co., Ltd. focuses on battery accessories, supporting related business, in the automotive battery, industrial battery safety, convenient, maintenance field has deep technical accumulation and practical technology patents. At present, the main products of the company are: battery status indicator, battery safety valve (exhaust bolt), battery equalizer, waterproof permeator valve, forklift battery automatic water refill device, battery water shortage alarm, battery water gun and other products. Pay attention to our company for more battery water refill maintenance issues.