Ares 7.5kWh All-in-One ESS with 5KW Inverter
Model: SCAS-5KW-7.5KWh

Product Overview
Is the SCAS-5KW-7.5KWh the Right Capacity for You?
Best suited for
The Ares 7.5kWh uses a 25.6V 300Ah block with a 5KW inverter in a 77 by 45 by 29 centimeter cabinet, sitting between the 5kWh and 10kWh models for homes that want more than one-night essential capacity without the larger 51.2V cabinet.
Typical loads this capacity handles
The 5KW inverter handles fridge, lighting, internet, entertainment, and short appliance tasks; the 200A discharge at 25.6V gives strong DC headroom. Sustained air conditioning or simultaneous cooking loads remain beyond a 5KW unit.
Estimated runtime
Backup example: roughly 6.8kWh usable. A 400W household average lasts about 17 hours and an 800W load around 8 to 9 hours, placing 7.5kWh as a comfortable overnight-plus-reserve option.
Sizing advice
Pick the 7.5kWh when the home needs a little more than a single night but the 10kWh cabinet is larger than the space allows. Note it is a 25.6V battery platform; the inverter and system are integrated at the factory, so installers still connect only the standard AC and PV sides.
Technical Specifications
- Power
- 5KW
- Battery Input Voltage
- 25.6V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/9000W
- PV Input Voltage Range
- 60V-450V
- Max MPPT Charge Current
- 160A
- Voltage
- 25.6V
- Capacity
- 7680Wh(300Ah)
- Discharge Current
- 200A
- Battery Type
- LiFePO4
- Dimensions
- 77*45*29CM
- Manual
- 1 manual, 1 fuse
Key Advantages
- ✓5KW hybrid inverter with 230V AC output and surge headroom for motor starts
- ✓7680Wh(300Ah) of Grade A LiFePO4 storage with about 90% usable energy and 2000-4000 cycle life
- ✓Integrated MPPT controller: up to 9000W of solar input, wide 60V-450V PV range, 160A MPPT charge current, for fast solar recharge
- ✓Single floor-standing cabinet with battery, inverter, MPPT, and BMS pre-integrated and factory tested
- ✓5-year warranty with CE, UN38.3, and MSDS certification as standard
- ✓Factory-direct wholesale pricing and full OEM/ODM customization from CMJ Solar
Applications
Shipping & Warranty
Worldwide Shipping
Global shipping via sea freight and express courier. FOB Shenzhen or EXW Jiangmen terms available. Production lead time 10-20 days depending on order volume and customization requirements.
Warranty & Support
5-year warranty on battery systems. LiFePO4 cells rated for 2000-4000 cycles. BMS protection, WIFI monitoring, and technical support included. Spare parts available throughout warranty period.
Frequently Asked Questions
What warranty does this product come with?
The Ares 7.5kWh All-in-One ESS with 5KW Inverter comes with a 5-year warranty covering the LiFePO4 battery cells and integrated BMS. Our LiFePO4 cells are rated for 2,000-4,000 charge-discharge cycles, providing 5-10 years of reliable daily use under normal operating conditions. Spare parts and technical support are available throughout the warranty period.
What is the MOQ (Minimum Order Quantity)?
The MOQ is typically 20 units per model for standard products. Sample orders of 1 unit are welcome for testing and evaluation. For OEM/ODM custom packaging or private labeling, the MOQ is 500 units. Contact our sales team for specific pricing based on your order volume.
How long can the Ares 7.5kWh All-in-One ESS with 5KW Inverter power my home during an outage?
The Ares 7.5kWh All-in-One ESS with 5KW Inverter provides 7,680Wh of stored energy (approximately 6,912Wh usable at 90% depth of discharge). At an average essential-load draw of 500W (lights, router, refrigerator, and TV), it can sustain power for approximately 13.8 hours. At 1,000W, runtime is approximately 6.9 hours. Actual runtime depends on total connected load and usage patterns.
What appliances can the 5KW inverter handle?
The Ares 7.5kWh All-in-One ESS with 5KW Inverter features a 5KW hybrid inverter with 230V AC output. At 5KW, it can simultaneously run household appliances such as refrigerators (150-400W), LED lighting (10-50W), televisions (50-150W), computers (100-300W), and smaller air conditioning units. The inverter also supports surge power for motor startups. For high-power devices like electric ovens or heat pumps, verify the combined load does not exceed the continuous 5KW rating.
Can this system operate off-grid and with solar panels?
Yes. The Ares 7.5kWh All-in-One ESS with 5KW Inverter supports grid-tied, off-grid, and hybrid operation modes. It features an integrated MPPT solar charge controller with a PV input voltage range of 60V-450V, making it compatible with a wide range of monocrystalline and polycrystalline solar panel configurations. The system automatically switches to backup power during grid outages and can store excess solar energy for nighttime use.
What is included in the all-in-one design?
The Ares all-in-one ESS integrates the LiFePO4 battery bank, hybrid inverter, MPPT charge controller, and BMS into a single floor-standing cabinet. This pre-wired, factory-tested design significantly reduces installation time and complexity compared to separate component systems. It includes WIFI monitoring for remote system status tracking via mobile app.
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