FoxESS 27.84kWh CQ7 Energy Storage & 8kW Single Phase Hybrid Inverter (1p 8kW)
Product Description The FoxESS CQ7 Energy Storage System combined with the KH/KA Series 8kW Single Phase Hybrid Inverter is a high-voltage modular energy solution designed specifically for residential use. The...
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Vendor: Ople Appliances
FoxESS 27.84kWh CQ7 Energy Storage & 8kW Single Phase Hybrid Inverter (1p 8kW)
$7,099.00
Vendor: Ople Appliances
FoxESS 27.84kWh CQ7 Energy Storage & 8kW Single Phase Hybrid Inverter (1p 8kW)
$7,099.00
Description
xProduct Description
The FoxESS CQ7 Energy Storage System combined with the KH/KA Series 8kW Single Phase Hybrid Inverter is a high-voltage modular energy solution designed specifically for residential use. The system consists of the CQ7 series high-voltage battery pack (configurable capacity, supporting up to 27.84kWh) and the KH1-8.0 single-phase hybrid inverter, supporting intelligent management of PV generation, battery storage, and grid on-grid/off-grid switching.
The CQ7 battery system features a modular stackable design, consisting of a Master control unit (CQM) and Slave expansion units (CQS), allowing for flexible capacity expansion. Paired with the 8kW hybrid inverter, the system enables PV energy storage, peak/off-peak tariff arbitrage, and emergency backup power during outages — ideal for residential users seeking high self-consumption rates.
Founded in 2019, Fox ESS is a subsidiary of Tsingshan Holding Group (a Fortune Global 500 company), focusing on the R&D, production, and sales of inverters and lithium batteries.
Key Features
Energy Storage System (CQ7 Battery)
- Modular & Expandable: The CQ7 system consists of 1 Master unit (CQM) and up to 6 Slave units (CQS). Minimum configuration requires 2 units (1 CQM + 1 CQS), maximum supports 7 units (1 CQM + 6 CQS), with capacity ranging from 14.04kWh to 49.14kWh.
- Safe LiFePO₄ Technology: Uses high-safety Lithium Iron Phosphate (LiFePO₄) cells, offering excellent thermal stability and cycle life.
- High-Voltage Architecture: Recommended operating voltage of 300V DC, with a voltage range of 85-480V DC, compatible with modern high-voltage hybrid inverters.
- Deep Discharge Capability: Supports 90% Depth of Discharge (DoD), maximizing usable capacity.
- High Protection Rating: IP65 rating, suitable for both indoor and outdoor installation.
Inverter (KH1-8.0 / 8kW Single Phase Hybrid)
- Hybrid Inverter Design: Supports intelligent coordination between PV, battery, grid, and loads. Can be configured as AC-coupled or DC-coupled; the battery storage system can be used independently even without PV panels.
- High Conversion Efficiency: Maximum efficiency of 97.8%, MPPT tracking efficiency of 99.9%.
- Multi-MPPT Design: Features 3 independent MPPT trackers (each MPPT connects to 1 PV string), adaptable to complex roof orientations.
- Wide Input Voltage Range: MPPT operating voltage range of 80-500V, startup voltage of 75V — low startup voltage extends daily power generation window.
- Advanced Battery Management: Built-in BMS communication interface (CAN/RS485), supports battery charge/discharge current of 50A each.
- Smart Monitoring: Remote monitoring and system management via Fox ESS mobile App or web portal (FoxCloud V2.0).
- IP65 Full Protection: Natural convection cooling, no internal fan — low noise and high reliability.
- EPS Emergency Backup: Supports Emergency Power Supply output in off-grid mode (requires EPS interface).
Specifications
CQ7 Battery System Specifications
| Specification | Parameter |
|---|---|
| Model | CQ7 Series (CQM Master + CQS Expansion) |
| Brand | FoxESS (Fox-ess) |
| Battery Type | LiFePO₄ (Lithium Iron Phosphate) |
| Single Module Energy | Approx. 7.02 kWh |
| Minimum Configuration Capacity | 14.04 kWh (1 CQM + 1 CQS) |
| Maximum Configuration Capacity | 49.14 kWh (1 CQM + 6 CQS) |
| Target Configuration Capacity | 27.84 kWh (approx. 1 CQM + 3 CQS) |
| Nominal Voltage | Varies by configuration (high-voltage system) |
| Battery Voltage Range | 85-480V DC (matched to inverter) |
| Recommended Operating Voltage | 300V DC |
| Max Charge/Discharge Current | 50A each |
| Operating Temperature (Charging) | 0 ~ 55℃ |
| Operating Temperature (Discharging) | -10 ~ 55℃ |
| Protection Rating | IP65 |
| Communication Protocols | CAN / RS485 |
| Installation Type | Floor-standing, stackable |
| Safety Certifications | IEC 62109-1/2, IEC 62477-1, CE |
KH1-8.0 8kW Single Phase Hybrid Inverter Specifications
| Specification | Parameter |
|---|---|
| Model | Fox ESS KH1-8.0 (KH/KA Series) |
| Output Power | 8,000 VA (rated) / 8,800 VA (max) |
| Output Phase | Single Phase |
| Rated Grid Voltage | 220/230/240V AC (range 180-270V) |
| Rated Output Current | 34.8A (max 38.3A) |
| Max Recommended PV Input | 12,000W DC |
| Max PV Voltage | 600V DC |
| MPPT Voltage Range | 80-500V DC |
| Startup Voltage | 75V DC |
| Number of MPPT Trackers | 3 (1 PV string per MPPT) |
| Max Input Current per MPPT | Approx. 18A |
| Battery Type | Lithium-ion (high-voltage battery) |
| Battery Voltage Range | 85-480V DC (recommended 300V DC) |
| Max Charge/Discharge Current | 50A each |
| Maximum Efficiency | 97.8% |
| MPPT Efficiency | 99.9% |
| PV to Battery Efficiency | 98.5% |
| Battery to AC Efficiency | 97.0% |
| Protection Rating | IP65 (indoor/outdoor installation) |
| Cooling Method | Natural convection (fanless) |
| Communication Interfaces | WiFi, RS485, DRM, USB, CT, optional 4G |
| Battery Communication | CAN / RS485 |
| Dimensions (approx.) | 380 × 440 × 167mm (varies slightly by model) |
| Weight (approx.) | 19-29kg (depending on model) |
| Noise Level | <30 dB |
| Certifications | IEC 62109-1/2, IEC 62477-1, EN 61000-6-1/-2/-3, G99 (UK grid) |
| Installation Method | Wall-mounted |
| Warranty | 10 years (based on available channel information) |
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
Shipping
Please find the Shipping Policy detial on the bottom of page.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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