Enersys PowerSafe ESG Batteries
Dependable emergency and standby power when you need it most.
Engineered for consistent output and extended operational life in tough industrial settings.
Ideal for mission-critical applications including:
UPS systems
Telecom networks
Data centers
Power utilities
Emergency response systems
Switchgear equipment
Critical DC power infrastructure
In Stock And Ready To Ship!
Will This Fit My Application?
✅ Utility and substation backup systems
✅ Switchgear and SCADA applications
✅ Industrial DC power systems
✅ Data centers and heavy-duty UPS environments
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Send us your system voltage or capacity requirements, and we’ll verify compatibility.
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✔ System design and sizing support
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Battery Specifications
| Specification | Details |
|---|---|
| Battery Type | Flooded Lead-Acid (VLA) [powrparts.com] |
| Voltage | 2V cells (multi-cell configurations available) [powrparts.com] |
| Capacity Range | 187 – 935 Ah [enersys.com] |
| Design Life | Up to 20 years (float service @ 77°F) [enersys.com] |
| Technology | Lead-calcium flooded battery |
| Maintenance | Periodic maintenance (watering required) |
| Applications | Utility, switchgear, industrial, backup power |
Product Overview
The EnerSys PowerSafe® ESG Battery is a high-capacity flooded lead-acid (VLA) solution engineered for mission-critical industrial and utility backup applications.
Unlike sealed AGM batteries, ESG batteries use a flooded electrolyte design with thick positive plates, enabling long-duration discharge performance, high capacity, and extended service life. [enersys.com]
Designed for heavy-duty load profiles and demanding service environments, the ESG series is widely used in switchgear, substations, and industrial DC systems, where reliability and long runtime are critical. [enersys.com]
With a 20-year float life expectancy and robust construction, these batteries deliver consistent and dependable power for long-term infrastructure investments. [enersys.com]
Ideal Applications
- Utility substations and switchgear
- SCADA and control systems
- Industrial DC backup systems
- Data centers and large UPS installations
- Renewable and grid infrastructure
- Backup power for critical facilities
Performance & Durability Features
- 20-Year Design Life: Long service life in float applications [enersys.com]
- High Capacity Range: Up to 935 Ah for large systems [enersys.com]
- Long Duration Discharge: Thick positive plates for extended runtime [enersys.com]
- High Reliability Construction: Engineered for demanding industrial load profiles [enersys.com]
- Enhanced High-Rate Performance: Copper insert posts improve conductivity [enersys.com]
- Robust Sealing Design: Slide-Lock™ post seal reduces maintenance and improves longevity [enersys.com]
- Monitoring-Friendly Design: Individual terminals for testing and maintenance [enersys.com]
- Reduced Watering Frequency: Electrolyte reserve extends maintenance intervals [enersys.com]
- Industrial-Grade Construction: Built for switchgear, substations, and critical power systems
Available Configurations
| System | Capacity Range | Application |
|---|---|---|
| PowerSafe ESG (2V cells) | 187–935 Ah | Utility / industrial DC power |
Modular systems available for large voltage configurations (24V, 48V, 125V, etc.).
⚠️ WARNING
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. Use only in well-ventilated areas and with appropriate personal protective equipment.
For more information, visit www.P65Warnings.ca.gov.