Discover Energy AES Rackmount ESS Battery Module 5.0 kWh 51.2V 100 AH Heated - 3U 19 Inch
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Visit CalculatorThe Discover AES Rackmount ESS Battery Module (Heated) delivers advanced lithium energy storage with integrated heating for cold-weather performance. With 5.0 kWh of capacity, a compact 3U rackmount design, and robust safety features, this 51.2V 100Ah module is ideal for both indoor and cold-climate installations. Its lithium iron phosphate (LiFePO4) chemistry and built-in smart BMS provide long cycle life, safe operation, and seamless communication with compatible inverters, making it a powerful solution for solar storage, backup, and scalable microgrid systems.
Integrated Heating Element for Cold Climates
Maintains battery temperature in freezing conditions to allow safe charging and consistent operation down to -20°C.
High-Capacity 5.0 kWh LiFePO4 Module
Delivers 51.2V and 100Ah with superior safety, energy efficiency, and a 6,000+ cycle lifespan at 80% depth of discharge.
Compact 3U Rackmount Format
Fits standard 19-inch enclosures—ideal for server racks, indoor energy cabinets, or modular ESS designs with space constraints.
Smart Integrated Battery Management System (BMS)
Real-time monitoring and protections against overcharging, overcurrent, thermal issues, and short circuits.
CAN/RS485 Communication Protocols
Ensures seamless compatibility with leading hybrid and off-grid inverter systems—ready for full-system integration.
Scalable Parallel Design
Easily expand by connecting multiple modules in parallel to build high-capacity systems for home or business use.

Everything you need is included with your product.
| Category | Specifications |
| Open Circuit Voltage (V) | 51.2 |
| Charge Voltage (Bulk Vdc) | 55.2 |
| Max Absorption Voltage (U1 Vdc) | 55.2 |
| Float Voltage (U2 Vdc) | 53.6 |
| Suggested Low Voltage Cutoff (Vdc) | 48 |
| Max Continuous Charge Current - 1 Hour | 95 A |
| Max. Continuous Charge Current (I Max. Adc) | 70 A |
| Min. Finishing Charge Current (I Min. Adc) | 2.5 A |
| Max Continuous Discharge Current - 1 Hour | 95 A |
| Max Continuous Discharge Current (Adc) | 70 A |
| Max Continuous Discharge Rate (kW) | 5.12 |
| Max Peak Current (Adc) | 218 A RMS |
| Self-Discharge (25°C / 77°F) | < 3% per month |
| Charge Temperature | Min: 4°C (39.2°F) | Max: 52°C (125.6°F) |
| Discharge Temperature | Min: -17°C (1.4°F) | Max: 52°C (125.6°F) |
| Storage Temperature | Min: -20°C (-4°F) | Max: 55°C (131°F) |
| Category | Specifications |
| Industry Reference | 19 Inch Rackmount 3U |
| Length A (in/mm) | 19.6 | 497.3 |
| Width B (in/mm) | 17.3 | 439.2 |
| Height C (in/mm) | 5.3 | 133.5 |
| Total Height D (in/mm) | 5.3 | 133.5 |
| Weight (lbs/kgs) | 97 | 44 |
| Terminal * | Amphenol SurLok Plus |
| Cell(s) | 16S1P |
| Case Material | Galvanized Steel Sheet |
| IP Rating | 20 |
| Electrolyte | LiFePO4 |
Can I use this battery in sub-zero temperatures?
Yes. This heated version includes an integrated heating system that allows safe charging even in cold environments down to -20°C.
Is this compatible with standard 19” racks?
Yes, it fits perfectly into 3U 19" rack enclosures, making it easy to install in indoor cabinets or custom battery banks.
How many batteries can I use in parallel?
You can connect multiple AES rackmount modules to scale up your storage. Refer to your inverter’s specifications for limits.
What inverters work with this battery?
The battery supports CAN and RS485 protocols and works with many major inverter brands. Always check for compatibility with your specific inverter.
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