Discover Energy AES Rackmount ESS Battery Module 5.0 kWh 51.2V 100AH - 3U 19 INCH
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Visit CalculatorThe Discover AES Rackmount ESS Battery Module offers high-capacity lithium energy storage in a space-saving 3U rackmount form. With 5.0 kWh of reliable storage and a smart, integrated Battery Management System, this module is built for scalable residential, commercial, and industrial solar and backup systems. The 51.2V 100Ah lithium iron phosphate (LiFePO4) chemistry provides long-lasting performance and enhanced safety, making it ideal for modern rack-based installations that demand compact design and high efficiency.
Compact 3U Rackmount Form Factor
Optimized for space efficiency in standard 19" racks—perfect for energy storage cabinets, enclosures, and server-style systems.
High-Efficiency LiFePO4 Chemistry
51.2V, 100Ah configuration provides stable performance, safety, and over 6,000 charge/discharge cycles at 80% depth of discharge.
Integrated Battery Management System (BMS)
Built-in BMS intelligently monitors voltage, temperature, current, and state of charge—protecting the battery from overcharge and short circuit.
Scalable Parallel Design
Easily connects with other AES modules to scale total capacity for residential microgrids, solar installations, or commercial storage systems.
Stable Continuous Output
Designed to handle peak loads and provide smooth output for both residential and industrial-grade inverters.
Compatible with Industry-Standard Inverters
Works with a wide range of inverters supporting CAN or RS485 communication for system-wide monitoring and integration.

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 |
Is this compatible with my existing 19” battery rack?
Yes, the module fits all standard 3U 19” enclosures, making it ideal for both residential and commercial cabinets.
Can I connect multiple batteries together?
Yes, the system is designed to allow parallel connections for increased capacity. Please refer to your inverter and system design for limits.
Does it come with communication features?
Yes, the built-in BMS supports CAN and RS485 protocols for use with compatible inverter brands and battery monitors.
Is this battery safe for indoor installations?
Absolutely. The LiFePO4 chemistry provides superior thermal and electrical stability, making it safe for enclosed or indoor use.
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I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
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