Electronic Design

Power Supplies

24-Cell Battery Rack Certified For 1997 UBC Zone 4 Specification
The manufacturer of the DDS VRLA battery line has introduced a corresponding line of battery racks. Certified according to the 1997 UBC Zone 4 specification, these racks can be assembled in any configuration up to four by six cells. Their easy to assemble frame gives designers flexibility for system configuration and fast, simple installation in tight or difficult locations. Their pieces fit together in predrilled and prepunched holes. Additionally, the cells are encased in dedicated protective steel cases that maintain a constant, uniform compression for the life of the cell. With these racks, the DDS VRLA batteries can be used in wireless, microwave, central office, and other telecommunications applications.

As for the DDS VRLA batteries themselves, they have ampere-hour capacities ranging from 120 to 8000 Ahr. They come in 24- and 48-V standard voltages, as well as in unique voltages. They're front-accessible, they're available in 29 different sizes and configurations, and they have a recombination of less than 95%. They require no watering, periodic equalization, special ventilation, or spill-containment systems. Furthermore, they have nonspillable classification (UN2800), and they're approved for air transportation.

Contact the company for pricing and availability information.

Yuasa Inc., P.O. Box 14145, Reading, PA 19612-4145; (800) 538-3627; fax (610) 372-8613; www.yuasainc.com.



High-Performance Lead-Acid Battery Packs 25% More Life
The 1680-Ahr Victory Class flooded lead-acid battery targets telecommunications central office, mobile switching office, and cable head-end applications. According to its manufacturer, its 25-year lifespan is five years and 25% longer than competitive models. Its low life-cycle costs are a result of the elimination of the need for periodic specific-gravity measurements or retorquing of battery posts. Customers only have to replenish the water every few years. Its manufacturer also claims that it exceeds the performance of other batteries its size at medium discharge rates (approximately two hours), while its lead-calcium plates enable better cycling capabilities as well. Contact the company for pricing information.

Lucent Technologies, 600 Mountain Ave., Murray Hill, NJ 07974; (800) 526-7819; www.lucent.com.



Battery Line Features Higher Energy Density In A Slimmer Package
The Sealed Lead Acid (SLA) line of batteries is designed for telecommunications, UPS, and alarm and security systems. These batteries feature a slim, sealed construction. According to their manufacturer, their energy density is 30% greater than densities found in typical SLA batteries of similar size. Available in three different 12-V models, they have 20-, 32-, and 45-W 10-minute ratings. A 24-V, 47-W monoblock model is available as well. These batteries also range from 1.5 to 100 A. Additionally, they have quick chargeability, maintenance-free operation, leak resistance, and exceptional deep discharge recovery. Contact the company for pricing information.

Panasonic, Secaucus, NJ; (877) 726-2228; www.panasonic.com/batteries.

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