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EnerSys NP7-12 is a 12 Volt 7 Ah Rechargeable, Non-Spillable, VRLA Sealed Lead-Acid Battery. The NP7-12 is ideal for Burglar Alarm and Fire Alarm Systems, as well as Access Control Systems as a back up battery to ensure operational integrity. The NP7-12 can also be used in applications wherever a twelve volt, seven amp hour battery is required. Enersys' unique construction and sealing technique ensures no electrolyte leakage from case or terminals. All NP batteries utilize EnerSys's unique electrolyte suspension system incorporating a microfine glass mat to retain the maximum amount of electrolyte in the cells. The electrolyte is retained in the separator material and there is no free electrolyte to escape from the cells. No gels or other contaminants are added. The design of EnerSys's NP batteries incorporates the very latest oxygen recombination technology to effectively control the generation of gas during normal use. Due to the perfectly sealed construction and the recombination of gasses within the cell, the battery is almost maintenance free. The combination of sealed construction and Enersys' unique electrolyte suspension system allows operation in any orientation, with no loss of performance or fear of electrolyte leakage. The batteries are equipped with a simple, safe, low pressure venting system which releases excess gas and automatically reseals should there be a build up of gas within the battery due to severe overcharge. The heavy duty lead calcium alloy grids provide an extra margin of performance and life in both cyclic and float applications and give unparalleled recovery from deep discharge. Depending upon the average depth of discharge, over a thousand discharge/charge cycles can be expected. The expected service life is five years in float standby applications.