Penicillins are a certain collection of antibiotics that eliminate infection causing bacteria. Also known in short as pen or PCN, they originate from a type of fungi called Penicillium fungi. They are used in the treatment or prevention of many different bacterial infections, usually caused by Gram-positive organisms.
VRLA battery. (Redirected from SLA battery) A VRLA battery stands for (valve-regulated lead-acid battery) more commonly known as a sealed lead-acid (SLA), gel cell, or maintenance free battery, is a type of lead-acid rechargeable battery.
Maintenance free batteries are sealed for life and the water level does not need to be maintained, they are usually calcium batteries. They also have a built in hydrometer giving some indication of the charge in one cell. AGM and Gel batteries are both types of Valve Regulated Lead Acid (VRLA).AGM batteries are similar to wet batteries, except the electrolyte is being held in the glass matts, as opposed to freely flooding the plates. For more benefits see our Fullriver Product Advantages.hey also have a built in hydrometer giving some indication of the charge in one cell. AGM and Gel batteries are both types of Valve Regulated Lead Acid (VRLA). AGM batteries are similar to wet batteries, except the electrolyte is being held in the glass matts, as opposed to freely flooding the plates.