Trojan Battery in the US has introduced its Deep-Cycle Gel batteries with gel electrolyte, making them completely maintenance free (no watering), says the company. The proprietary gel formulation ...

A gel battery is one of the types of valve regulated lead acid (VRLA) battery. It is maintenance free, as well as versatile. Gel battery produces less fumes and can be used in applications without ...

Once upon a time, all you had to know about batteries was that red is positive, black is negative, and the correct way to add a little distilled water when the electrolyte level got low. These days, ...