The low maintenance and valve-regulated constructions combine with heavy-duty plates and unique separator systems to make NPC service twice as long as conventional counterparts.¤¤NPC operates 500 charge/discharge cycles or twice as many cycles as conventional cycle use batteries at 75% D.O.D. (depth of discharge).¤¤Battery electrolyte retained solidly in the separator and the innovative gas recombinant system allows minimum gas emittance freeing the user from maintenance.¤¤Yuasa's state-of-the-art plate barrier prevention and the unique separator systems help endure deep discharge use thus considerably prolonging battery's service life.¤¤Cyclic use batteries tend to be left discharged after usage causing plate corrosion leading to shortened life. Self-discharge rate of NPC is as small as only 0.1% a day at 20°C and thus extends the storage period allowed.
