---
title: "All-In-One Max 125 kW / 257 kWh — Datasheet"
revision: "1.0.2"
publisher: AERL (Australian Energy Research Laboratories)
url: https://www.aerl.com.au/docs/aerl-aio-max-125-257-datasheet
pdf: https://www.aerl.com.au/documents/datasheets/AERL_AIO_Max_125_257_Datasheet_REV_1.0.2.pdf
description: "Technical specifications and performance data for the AERL AIO Max commercial all-in-one energy storage system (125 kW · 257 kWh)."
---

# All-In-One Max 125 kW / 257 kWh — Datasheet

*Rev 1.0.2. Markdown copy of the AERL document at https://www.aerl.com.au/docs/aerl-aio-max-125-257-datasheet; the PDF (https://www.aerl.com.au/documents/datasheets/AERL_AIO_Max_125_257_Datasheet_REV_1.0.2.pdf) is the controlled version.*

# All-In-One Max

Commercial Energy Storage System

**125kW** Power rating

**257kWh** Storage capacity

**<20ms** Off‑grid switching

**IP55** Cabinet, outdoor

## All-In-One Max

Commercial Energy Storage System

125 kW inverter, 257 kWh LiFePO₄ storage, BMS, fire suppression and thermal management in one cabinet.

### Product highlights

### High energy performance

- 48 A inputs with 6 MPPTs for optimised PV yield
- 300 A charge/discharge for high-power cycling
- 100% three-phase unbalance for diverse loads
- 165 kVA backup peak for 10 s surge support

### Flexible power architecture

- Dual independent battery ports
- Half-wave load support for industrial applications
- Off-grid operation and off-grid paralleling; grid connection pending CEC listing
- Diesel generator compatibility for weak-grid sites

### Robust safety & durability

- Four-level fire protection with multi-sensor detection
- Combustible gas, smoke & temperature detection with active exhaust
- IP66 inverter and IP55 cabinet for outdoor resilience
- C4/C5 anti-corrosion for challenging environments

### Intelligent control & O&M

- Built-in EMS with load forecasting and ToU scheduling
- Dynamic pricing for automated energy optimisation
- < 20 ms seamless off-grid switching
- Remote monitoring and firmware updates

|  |  |
|---|---|
| System Model | AIO-MAX-125-257 |
| Rated AC Output Power [kW] | 125.0 |
| Battery Energy [kWh] | 257.2 |
| Usable Battery Energy [kWh] | 231.48 |
| Operating Temperature Range [°C] | −20 to 50 |
| Relative Humidity [%] | 5–95 (non-condensing) |
| Max. Operation Altitude [m] | 3000 |
| Cooling (Battery Cabinet) | Air-conditioner with 5 kW cooling and 3.7 kW heating |
| Noise Level [dB] | ≤ 70 |
| Display | LED & OLED |
| Communication | CAN, RS485 |
| Hybrid Inverter Model | M2HT-125K-300 |
| PV Input |  |
| Max. PV Array Power [kWp] | 250 |
| Max. PV Input Voltage \* [V] | 1000\* |
| Rated PV Input Voltage [V] | 620 |
| Start-up Voltage [V] | 135 |
| MPPT Operating Voltage Range \* [V] | 160–950 |
| No. of MPP Trackers | 6 |
| No. of Strings per MPPT | 3 |
| Max. Input Current per MPPT [A] | 48 × 6 |
| Max. Short-circuit Current per MPPT [A] | 60 × 6 |

|  |  |
|---|---|
| Hybrid Inverter Model | M2HT-125K-300 |
| Battery Side |  |
| Battery Voltage Range [V] | 300–950 |
| No. of Battery Inputs | 1 or 2 |
| Max. Charge/Discharge Current [A] | 300 or 150 × 2 |
| Max. Charge/Discharge Power [kW] | 125/125 |
| Grid Side (On-Grid) |  |
| Rated Output Power [kW] | 125.0 |
| Max. Output Apparent Power [kVA] | 125.0 |
| Rated AC Voltage [V] | 3L/N/PE; 220/380 V; 230/400 V; 240/415 V |
| Rated AC Frequency [Hz] | 50/60 |
| Rated Output Current [A] | 189.4/181.2/173.6 |
| Power Factor | 0.8 leading … 0.8 lagging |
| THDi (@Rated Power) | < 3% |
| Max. Input Apparent Power \*\* [kVA] | 207 |
| Max. AC Input Current [A] | 300 |
| Back-up Side (Off-Grid) |  |
| Rated Output Power [kW] | 125.0 |
| Peak Output Apparent Power [kVA] | 165 @ 10 s |
| Rated Output Voltage [V] | 3L/N/PE; 220/380 V; 230/400 V; 240/415 V |
| Rated Output Frequency [Hz] | 50/60 |
| Rated Output Current [A] | 189.4/181.2/173.6 |
| On/Off-grid Switching Time | < 20 ms |
| THDv (@Linear Load) | < 3% |
| Efficiency |  |
| MPPT Efficiency | 99.90% |
| Max. Efficiency | 98.00% |
| European Efficiency | 97.80% |
| Inverter General Data |  |
| Dimensions [W × H × D mm] | 1232 × 932 × 356 |
| Weight [kg] | 164 |
| Ingress Protection | IP66 |
| Anti-corrosion Grade | C4 |
| Battery Cabinet Model | E2BR-S257K-C |
| Battery Type | LiFePO₄ / 314 Ah |
| Battery Module Quantity | 16 Packs (E2BR-B16K, 16.08 kWh, 1P16S, 51.2 V) |
| Depth of Discharge | 90% |
| Rated Voltage [V] | 819.2 |
| Operating Voltage Range [V] | 716.8–921.6 |
| Recommended Charge/Discharge Current [A] | 157 |
| Cycle Life | 8000 \*\*\* |
| Dimensions [W × H × D mm] | 1100 × 2393 × 1300 |
| Weight [kg] | 2500 |
| Ingress Protection | IP55 |
| Anti-corrosion Grade | C4 / C5 (Optional) |

\* Max. PV input voltage is 950 V — the inverter stops operating between 950 V and 1000 V and will be damaged above 1000 V. \*\* Max. input apparent power = maximum grid import to supply backup loads and charge the battery. \*\*\* Cycle life: 25 ± 1 °C, 0.5P charge/discharge rate, SOH = 70%, per battery cell manufacturer’s data.

![AERL](https://www.aerl.com.au/docs/_assets/assets/logos/aerl-logo.svg)  ![Solinteg](https://www.aerl.com.au/docs/_assets/assets/images/partners/solinteg-logo-light.svg)

Manufactured by **Solinteg** Supplied and supported in Australia by **AERL**

Australian Energy Research Laboratories

### Address

1/75 Bluestone Circuit Seventeen Mile Rocks QLD 4073 Australia

### Contact

[sales@aerl.com.au](mailto:sales@aerl.com.au) [support@aerl.com.au](mailto:support@aerl.com.au)

aerl.com.au Phone **1800 950 865**

AERL reserves the right to change any product, product specifications and data without notice to improve reliability, function or design or otherwise. © 2026 AERL Pty Ltd. All rights reserved.

AIO-MAX-125-257 All-In-One Max · Datasheet · **Rev 1.0.2**