Vented Type Lead Acid Battery

Vented lead acid battery model.

Vented type lead acid battery.

They are maintenance free in the sense of not requiring the addition of water to offset hydrogen gas released during the charging process. A vented battery can give off sixty times more gas than a vrla battery in normal use. Individual cells and blocks are housed in transparent plastic containers made of material that is highly resistance to chemical influences and mechanical damage. This type of battery is also used in golf carts and forklifts.

Vented lead acid batteries are commonly called flooded spillable or wet cell batteries because of their conspicuous use of liquid electrolyte figure 2. Group vented lead acid sealed lead acid vla sla or vrla. Two compounds used for such purposes are epsom salts and edta. The line up covers a wide range of capacities from 15ah to 2400ah.

These products are suitably used by utilities marine oil gas and petrochemical. Long service life of 10 to 14 years can be expected from tubular positive plates. Epsom salts reduces the internal resistance in a weak or damaged battery and may allow a small amount of extended life. Valve regulated lead acid vrla batteries are the most widely used battery type because of their high power density and ease of use.

Chemical additives have been used ever since the lead acid battery became a commercial item to reduce lead sulfate build up on plates and improve battery condition when added to the electrolyte of a vented lead acid battery. Vrla batteries are considered to be sealed because they normally do not allow for the addition or loss of liquid. Agm batteries are a type of valve regulated lead acid battery. Type ogi block range ogi stationary blocks and cells are produced using the conventional lead acid technology.

Agm batteries must still be vented. They are the most cost effective and longest lasting of the lead acid batteries. Stationary lead acid battery vented type. They can be topped up when required and are therefore more tolerant to high temperature operation and over charging.

These batteries have a negative and a positive terminal on their top or sides along with vent caps on their top. The free electrolyte also facilitates cooling of the battery. Such treatments are rarely if ever effective. Most of the battery complies with bs 6290 din40738 and iec standard.

Vented lead acid battery high performance batteries are designed to give long services life. Flooded lead acid batteries contain an electrolyte that is free to move around in the battery encasement.