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PowerSafe® mSeries (DDm) Batteries

PowerSafe® mSeries batteries offer an ideal solution for large capacity Valve Regulated Lead Acid (VRLA) battery requirements. Featuring a steel can (module) design with an integral racking system, PowerSafe mSeries batteries provide a cost-effective battery system with a compact, quick and simple installation process for renewables, telecommunications, Uninterruptable Power Supply (UPS), utilities and NEBS™ applications.

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Enhanced cells in a flexible racking system

PowerSafe mSeries batteries combine the performance of an enhanced cell design with the flexibility of a superior racking system. The cells incorporate thicker positive plates for longer life, and are encased in dedicated protective steel cans (modules) that maintain constant, uniform compression for the life of the cell. The easy to assemble racking system provides total flexibility for configuration and allows fast, simple installation with the robustness that NEBS applications demand.

  • Capacity range: 200 to 2000Ah
  • 100% initial battery capacity
  • NEBS Zone 2 and 4 certified
  • Configurations: 2, 3, 4 or 6 cells wide in single cell modules; 2, 4 or 6 in 2-cell modules
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Product Specification

Take a look at the following PowerSafe mSeries product specification:



Central Offices / Switching Centers

Outside Plant

Inside Plant

Technology / Chemistry


Capacity (Min) - Europe standard


Capacity (Max) - Europe standard


Capacity (Min) - US standard


Capacity (Max) - US standard


Capacity US standard

Ah / 8hr / 1.75Vpc / 77°F

Voltage (Min)


Voltage (Max)



Top terminal