The EnerSys PowerSafe® DDm DDm85-21 battery range offers an ideal solution for large capacity Valve Regulated Lead-Acid (VRLA) battery requirements. EnerSys PowerSafe® DDm DDm85-21 battery’s steel can (module) design, with its integral racking system, provides a cost effective battery system. This creates a compact, quick and simple installation process. EnerSys PowerSafe® DDm DDm85-21 battery, with its optimized recombination technology and extra thick plates, provides excellent performance and service life across a wide range of applications including: telecommunications, power generation/distribution sites, and UPS.
General Specifications:
Nominal Capacity (Ah):
10hr. rate 1.80Vpc @ 20°C: 850
8hr. rate 1.75Vpc @ 77°F: 850
Nominal Dimensions:
Length (mm): 214
Length (in): 8.4
Height (mm): 165
Height (in): 6.5
Can Depth (mm): 519
Can Depth (in): 20.4
Module Depth (mm): 554
Module Depth (in): 21.8
Typical Weight of Cell(s) in Can (kg): 64.5
Typical Weight of Cell(s) in Can (lbs): 142.0
Internal Resistance Micro-Ohms: 309
Short Circuit Current (Amps): 6748
Electrolyte (1.300 S.G.)
Volume (per cell) (oz): 371
Volume (per cell) (L): 11.0
Weight (per cell) (lbs): 31.5
Weight (per cell) (kg): 14.3
Pure Acid (1.835 S.G.)
Volume (per cell) (oz): 105.0
Volume (per cell) (L): 3.1
Weight (per cell) (lbs): 12.5
Weight (per cell) (kg): 5.7
Lead Weight (per cell) (lbs): 85
Lead Weight (per cell) (kg): 38.6