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Types Of Lead-Acid Batteries

Views: 2     Author: Site Editor     Publish Time: 2023-09-03      Origin: Site

Types Of Lead-Acid Batteries

Types Of Lead-Acid Batteries

Lead acid batteries are widely used for their versatility and reliability in a variety of applications, including cars, boats, backup power systems, and off-grid solar arrays. A lead acid battery consists of lead plates immersed in sulfuric acid electrolyte. When the battery is discharged, lead sulfate is formed on the plates and the electrolyte becomes less concentrated. When the battery is charged, the lead sulfate is broken down and the electrolyte returns to its original strength.


There are three main types of lead-acid batteries: flooded or wet cell, AGM (absorbent glass mat), and gel cell.

Flooded batteries are the most common type and have been used for decades. They have a liquid electrolyte that can spill if the battery is tipped or overcharged. Maintenance is required to keep the plates clean and the water level topped up.


AGM batteries are an improvement on flooded batteries. They use a glass mat to separate the lead plates and hold the electrolyte close to the plates. This eliminates the risk of spillage and allows for mounting in any orientation. AGM batteries have a higher power density and faster recharge than flooded batteries, and require less maintenance.


Gel batteries are similar to AGM batteries in that they use a separator to immobilize the electrolyte. However, the electrolyte is in the form of a gel, which reduces the risk of leakage even further. Gel batteries are typically more expensive than AGM batteries and have a lower discharge rate, but can last longer and are more resistant to high temperatures.


In summary, lead-acid batteries may seem old-fashioned compared to modern lithium-ion batteries, but they continue to be a reliable and cost-effective option for many applications. Choosing the right type of lead-acid battery depends on the specific needs of the application, but AGM and gel batteries are both excellent choices for those looking for a more low-maintenance and safer alternative to flooded batteries.

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