External recombination system for vented lead/acid batteries used in float service

There is a major demand for maintenance-free lead/acid batteries, i.e. batteries that do not require periodic additions of water. A catalyst-based system is described, the Aqua-Gen System, that externally recombines the oxygen and hydrogen evolved during battery charging to water. Vented (flooded-electrolyte) batteries fitted with this device and operated under normal conditions, do not require topping-up with water during the course of their lifetimes. Other benefits include the avoidance of risks and mistakes in battery operation, simplified inspection of the battery, and cost savings.