Advantages of Valve Regulated Lead Acid (VRLA) Batteries

Valve Regulated Lead Acid (VRLA) Batteries are sealed maintenance free lead acid batteries. The normal lead acid battery evolve  hydrogen which needs to vented through the cell in order to avoid explosion of the battery. On the other hand, the evolved hydrogen in the VRLA battery is reused in the battery itself. Therefore, no venting … Read more

VRLA Battery – Valve Regulated Lead Acid Battery

vrla sealed battery

A VRLA battery or Valve Regulated Lead Acid Battery is  a sealed battery or maintenance free battery. This is one type of Lead acid rechargeable battery. The VRLA Battery does not require stringent ventilation. Also, we can mount the battery in any orientation. The reduced ventilation requirement is an added advantage of VRLA. The VRLA … Read more

Difference between Capacitor and Battery

What is Capacitor? A capacitor is a passive two-terminal device used to store electric charge in an electric field. The capacitor has two metallic plates separated by a dielectric medium. The dielectric medium may be paper,electrolytes,mica,tantalum etc.     When voltage is applied across the capacitor, the capacitor gets charged up to the voltage applied. … Read more

What is Battery Acid? Its composition and Roles

The battery acid is the acid used in lead- acid batteries. A battery can not work without battery acid or electrolyte.The battery converts electrical energy into chemical energy during charging process. The battery converts the chemical energy into electrical energy during discharging. We use lead-acid battery in  motor vehicles, DG sets and 110 volts DC … Read more

Why is the terminal voltage less than EMF during discharging of battery?

The equivalent circuit of the battery is as given below. A voltage source can be represented as EMF source with an internal series resistance.        Under no load condition, the current flowing through the battery or cell is zero, and the terminal voltage is exactly equal to the EMF of cell or battery. … Read more