Vent plugsCell pillars and connectorsCell lidNegative plates(pasted grids)Separators(sintered microporous PVC)Planté positive plates(constructed of pure lead)Plastic container(transparent styreneacrylonitrile)Lead-Acid Storage BatteriesDOE-HDBK-1084-95APPLICATIONSRev. 0Page 25Batteriestimes of low power demand. Stationary batteries are also used for backup emergencypower, telecommunications equipment, and uninterruptible power supplies. Stationarybatteries are manufactured in a variety of plate designs. An example of a stationarybattery used for backup power is shown in Figure 13. PortablePortable lead-acid batteries are usually of the sealed type constructed similarly to thatdepicted in Figure 14. Their operation cannot usually be described as cyclic or float, but issomewhere in-between. Batteries in this category may be frequently deep cycled or remainunused for a relatively long time. Typical applications are portable tools, toys, lighting andemergency lighting, radio equipment, and alarm systems. Most portable batteries may berecharged to 80–90% of their original capacity in less than an hour using a constant-voltagecharger. Figure 13. Typical stationary battery used for backup power.
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