Lead-carbon batteries are an advanced VRLA lead acid battery which use a common lead positive plate (anode) and a carbon composite negative plate (cathode). The carbon acts as a sort of 'supercapacitor' which allows faster charging and discharging, plus prolonged life at partial state of charge. The patented technology found in lead carbon batteries uses a special advanced technology negative carbon plate formula, developed to completely replace traditional regular sulphuric lead acid batteries. This in turn improves the product’s application and safety performance. The electrical properties of the battery are consistent and achieve high reliable performance + longer life. It effectively overcomes the disadvantages of plate sulphation, active material loss and water loss rate, has good low temperature and overcharge performance, and greatly improves product life. The supercapacitor electrode is the key to the longevity of the carbon batteries.