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EnerSys PowerSafe D Batteries

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The PowerSafe D range of batteries, available in both DU and DSG models, are designed for telecommunications, utlity and switchgear applications.

EnerSys PowerSafe D Batteries

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The PowerSafe D range of batteries, available in both DU and DSG models, are designed for telecommunications, utlity and switchgear applications.

PowerSafe DU battery models are designed to handle the demanding float and deep discharges typical for telecommunication applications. They feature proven flat plate lead-calcium grid alloy and they’re the largest amp hour capacity four cell battery in the industry, ranging from 310 to 780Ah. The DU series multi-cell construction shortens installation time and reduces the battery string footprint. In addition, PowerSafe DU batteries are designed with the edge of the plates oriented perpendicular to the rack rails for full plate edge visibility. The dual hole (top/bottom) terminal design allows for easy maintenance.

PowerSafe DSG battery models feature a lead-calcium design that reduces the maintenance (watering intervals) associated with lead-antimony batteries. This makes the DSG battery ideal for challenging utility switchgear applications. Its 0.25 inch positive grids are one of the thickest in the industry, making it an excellent long discharge battery and ideally suited for the complex duty cycle requirements of the switchgear application. The multi-cell construction helps to minimize floor space. PowerSafe DSG batteries also have individual posts for each cell to help ease and simplify the integration of battery monitoring and test equipment used in routine maintenance inspections.

All PowerSafe D batteries employ a proven Slide-Lock post seal that allows for natural plate growth over time without degrading the seal. The innovative tongue-and-groove jar-to-cover seal provides reliability with a robust airtight seal.

Features and Benefits:

  • Capacity from 295 to 745 Ah

  • 20 year life expectancy in float service at 77 degrees F

  • Thick grids which provide excellent rate performance and lone life

  • Individual posts to monitor individual cell performance

  • Electrolyte reserve reduces watering requirements

  • Slide-Lock post seal design

Alpine Power Systems provides critical power services  on EnerSys batteries for data center, telecom, CATV, Utility, and other apllications. Alpine's certified technician's can provide EnerSys installation, battery preventative maintenance, monitoring and recycling services nationwide. Call or email us today for quotation requests and technical inquiries.


  • CATV & Broadband


  • Lead Acid - Flooded




See below for documentation relating to this product line that is available to download. To download this documentation, please click on the desired document you’d like to download and fill out the required form information fields. You will be able to view and download the documents upon completion of the download form.

PDF Document
EnerSys PowerSafe D Performance Specs
PDF Document
EnerSys PowerSafe D Owners Manual
PDF Document
EnerSys PowerSafe D Safety Data Sheet
PDF Document
Standby Power Product Overview

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