EnerRocket ESH 12-400W FR | 12V High Rate SMF VRLA Battery
ESH 12-400W FR – 12V High Rate SMF VRLA Battery


- High Rate Long Life Series battery delivering 400W per cell at the 15-minute rate (1.67V ECV).
- Thin Plate Pure Lead grid with Absorptive Glass Mat (AGM) system for superior power density.
- 12-year design life as per Eurobat standards.
- Flame-retardant UL94 V-0 ABS container for enhanced safety in critical installations.
- Ultra-low internal resistance of ≤4.4 mΩ enables high current delivery and fast recharge.
- Maximum discharge current of 810A for 5 seconds — ideal for high-surge UPS backup.
- M8 threaded terminals designed 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.
- Suitable for UPS, telecommunication, fire alarm & security, and medical equipment.
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
- Telecommunication Systems
- Fire Alarm Safety & Security Systems
- Medical Equipment
Electrical Characteristics
- Nominal Voltage: 12V
- Capacity (25°C): 400W per cell at 15 min to 1.67V ECV
- Design Life: 12 Years (as per Eurobat standards)
- Internal Resistance (25°C, 100% charge): ≤4.4 mΩ
- Self Discharge (20°C): 97% remaining capacity after 1 month
- Maximum Discharge Current (25°C): 810A for 5 seconds
- Maximum Charging Current (25°C): 28A
Charging Parameters
- Cyclic Use (constant voltage, 25°C): 14.4 to 14.7V, temperature compensation −30mV/°C
- Standby Use (constant voltage, 25°C): 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 ± 3°C
Physical Specifications
- Length: 306 mm
- Width: 168 mm
- Height: 210 mm
- Total Height: 215 mm
- Weight: 29.2 kg (±5%)
- Terminal: M8 threaded insert, Ø16 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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