J&J Batteries

A very high quality maintenance free calcium battery designed for Australian conditions with outstanding service life.

In addition, the calcium MF battery minimizes self-discharge for extended life, making the product convenient for the user and economically practical.


All Delkor products are maintenance-free (MF) batteries that contain an apparatus for gas/liquid segregation, to maximize electrolyte collection, and a calcium alloy, eliminating the need to replenish distilled water for the entire life of the product.


Optima Batteries are the most advanced AGM battery in today’s market. The Optima is constructed by using spirally wound cells. This gives an Optima AGM battery many advantages over conventional flat plate batteries and other flat plate AGM batteries