Lead Crystal Battery 6-CNFJ-55 12V 55Ah M6-F Lead Crystal technology combines the best lead-acid technologies with liquid and gel electrolytes. This sealed battery uses a new type of electrolyte: non-corrosive SiO2 acid. It crystallises over time and significantly improves the performance and technical characteristics of the product, with a tenfold increase in life and no maintenance. Lead Crystal batteries recharge 2 times faster than standard sealed batteries. It is 99% recyclable and classified as non-hazardous for the transport of goods. Lead Crystal batteries can be used in applications such as UPS, industrial installations, alarm systems and emergency lighting. Advantages: *Operates at temperatures from -40°C to +65°C; *Life expectancy in normal service is 18 to 20 years at 25°C; *Very low self-discharge: can be stored for 2 years without additional charging; *number of charge cycles varies from 600 to 5000 depending on the depth of discharge; *Recharge time 2 times faster than standard sealed batteries; *99% pure lead; *non-hazardous for transporting goods.