EnerRocket ESH 12-820W FR | 12V High Rate SMF VRLA Battery
ESH 12-820W FR – 12V High Rate SMF VRLA Battery
- Flagship High Rate Long Life Series battery delivering 820W per cell at the 15-minute rate (1.70V ECV).
- Purpose-built for critical data centre and large-capacity UPS installations.
- Thin Plate Pure Lead grid with Absorptive Glass Mat (AGM) system for maximum power density.
- 12-year design life as per Eurobat standards.
- Flame-retardant UL94 V-0 ABS container for enhanced safety in critical installations.
- Exceptionally low internal resistance under 2.2 mΩ — the lowest in the ESH range.
- Maximum discharge current of 1350A for 5 seconds for the most demanding surge loads.
- High charge acceptance of 69A for rapid recovery between outages.
- Heavy-duty M8 threaded terminals with Ø22 mm base for high-current connections.
- Low self-discharge — 97% capacity retained after 1 month of storage at 20°C.
- Non-spillable, sealed, maintenance-free construction with gas recombination technology.
- Compliant with IEC 60896 Part 21 & 22; ISO 9001, UL and CE certified.
Feature
Catalogue
Feature
Technical Features
- Non-spillable sealed construction
- Thin Plate Pure Lead grid
- Absorptive Glass Mat System (AGM System)
- ABS (Acrylonitrile Butadiene Styrene) construction, flame-retardant UL94 V-0 rated
- Gas recombination technology
- Venting system for low internal pressure
- Low self-discharge
- Heavy-duty, highly optimized grids
- High power output with terminal design for high current
- Maintenance free operation
Applications
- UPS Systems
- Critical Data Centre
- Fire Alarm Safety & Security Systems
- Medical Equipment
Electrical Characteristics
- Nominal Voltage: 12V
- Capacity (25°C / 77°F): 820W per cell at 15 min to 1.70V ECV
- Design Life: 12 Years (as per Eurobat standards)
- Internal Resistance (25°C, 100% charge): under 2.2 mΩ
- Self Discharge (20°C): 97% remaining capacity after 1 month
- Maximum Discharge Current: 1350A for 5 seconds
- Maximum Charging Current: 69A
Charging Parameters
- Cycle Use (constant voltage, 25°C / 77°F): 14.4 to 14.7V, temperature compensation −30mV/°C
- Standby Use (constant voltage, 25°C / 77°F): 13.4 to 13.8V, temperature compensation −20mV/°C
Operating Temperature Range
- Discharge: −20°C to 60°C
- Charge: −10°C to 60°C
- Storage: −20°C to 60°C
- Normal Operating Temperature: 25°C ± 2°C
Physical Specifications
- Length: 522 mm
- Width: 238 mm
- Height: 218 mm
- Total Height: 223 mm
- Weight: 67.5 kg (±5%)
- Terminal: M8 threaded insert, Ø22 mm
Compliance & Certification
- IEC 60896 Part 21 & 22
- Design life as per Eurobat Standards
- ISO 9001 Quality Assured
- UL Listed / UL FR-V0 flame-retardant container
- CE Marked
Catalogue
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