AU51120
A 6.14 kWh wall-mounted battery rated IP65, so it can go on an inside wall or under a covered outdoor wall. It talks to hybrid inverters over CAN, RS485 or RS232, and up to 15 units can run in parallel.
Why installers choose AU51120
Indoor or outdoor
IP65 enclosure for walls inside the home or in a sheltered outdoor spot.
Optional heating
Intelligent heating is available as an option for cold climates.
Built-in breaker
A breaker on the unit for safe installation and service.
Inverter communication
CAN, RS485 and RS232 for common 48 V hybrid inverters.
AU51120 technical data
| Specification | AU51120 |
|---|---|
| Basic information | |
| Rated capacity | 6.144 kWh |
| Nominal capacity | 120 Ah |
| Rated voltage | 51.2 V |
| Operating voltage range | 44–58.4 V |
| Cycle life | 6,000 cycles (80% DoD) |
| Communication | CAN / RS485 / RS232 |
| Max. units in parallel | 15 |
| Protection | Over-charge, over-discharge, over-current, short-circuit, low-voltage and temperature protection |
| Charging | |
| Charging power | 3.74 kW |
| Recommended charging current | 75 A |
| Max. charging current | 100 A |
| Recommended charging voltage | 58 V |
| Max. charging voltage | 58.4 V |
| Discharging | |
| Discharging power | 3.5 kW |
| Recommended discharging current | 70 A |
| Max. discharging current | 100 A |
| Discharge cut-off voltage | 44 V |
| Battery recovery voltage | 48 V |
| General | |
| Size (H × W × D) | 600 × 480 × 200 mm |
| Net weight | 66 kg |
| Breaker | Yes |
| Installation | Wall-mounted |
| Intelligent heating | Optional |
| Ingress protection | IP65 |
| Cell type | LiFePO4 |
| Operating altitude | Below 2,000 m |
| Temperature | |
| Discharging temperature | -20 to 60 °C |
| Charging temperature | 0 to 55 °C |
| Storage temperature | -20 to 45 °C |
| Certification | |
| Documents | MSDS · UN38.3 |
Data from the 2026 product catalogue. Specifications may change; we confirm the current datasheet with every quotation.
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