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Fox EQ2900 2.88kWh HV Battery (Slave) Connector Type A
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FE-HV-EQS-2900 | 2.88kWh high-voltage LiFePO₄ slave battery for Fox EQ2900 systems (Connector Type A), designed to expand an existing EQ master stack up to 20.16kWh.
Key Features
- Slave high-voltage module for the Fox EQ2900 series; must be paired with an EQ2900 master (Type A).
- 2.88kWh nominal capacity with 90% depth of discharge for excellent usable energy per module.
- Modular, stackable design; multiple EQ2900 slaves can be added to reach up to 20.16kWh per stack.
- LiFePO₄ chemistry for long cycle life, high safety and wide operating temperature tolerance.
- Plug-and-play DC and communication interlinks reduce installation time and complexity.
- CAN communication with Fox ESS hybrid and AC inverters for full system integration and monitoring.
- IP65 protection for indoor or outdoor floor‑standing installation.
Battery Specifications (per Slave Module)
| Battery Type | Lithium Iron Phosphate (LiFePO₄) |
| Nominal Energy | 2.88kWh (2880Wh) |
| Usable Capacity (90% DoD) | ≈ 2.59kWh |
| Nominal Voltage | ≈ 52V (single module) |
| Depth of Discharge | 90% |
| Recommended Discharge Current | 25A |
| Max Charge/Discharge Current | 50A |
| Peak Discharge Current | 65A for 30 seconds |
| Round-trip Efficiency | >95% |
| Cycle Life | >6000 cycles @ 90% DoD, 25°C |
System Scaling (with EQ2900 Master)
| Minimum Configuration | 1× Master + 1× Slave (5.76kWh nominal) |
| Maximum Configuration | 1× Master + multiple Slaves up to ≈20.16kWh per stack |
| Nominal Stack Voltage (example, 7 modules) | ≈ 403.2V |
| Operating Voltage Range | ≈ 97.2–459.9V (depending on number of modules) |
| Communication | CAN between modules and EQ‑compatible inverters |
Mechanical & Environmental
| Dimensions (W × H × D) | ≈ 570 × 350 × 380 mm (per module) |
| Weight | ≈ 32–35 kg (typical) |
| Ingress Protection | IP65 |
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -20°C to +55°C |
| Cooling | Natural convection |
| Installation | Floor‑standing, stacked beneath/above other EQ2900 modules |
Compatibility & Warranty
- Only for use with Fox EQ2900 Master (Type A) and Fox ESS hybrid/AC inverters supporting EQ series.
- Connector Type A – new modules added to an existing stack must match connector type and version.
- Typical warranty up to 12 years when registered with Fox ESS (region and programme dependent).
MPN: FE-HV-EQS-2900
Model: Fox EQ2900 2.88kWh High Voltage Battery (Slave), Connector Type A
Modular EQ‑series slave battery for expanding Fox high‑voltage storage systems, providing reliable, long‑life additional capacity in 2.88kWh steps.
- Type Solar
- Vendor Fox ESS
- SKU FE-HV-EQS-2900
Please note: Delivery times may vary depending on location, with specific details outlined below.
Standard Delivery
UK Mainland
- Delivery Time: 2–4 working days
- Free Delivery on most orders
- £4.95 for small items
- £69 for Solar Panels, Batteries and other specialized large items delivery
Express Delivery
UK Mainland
- Delivery Time: 1–3 working days
- Free Delivery
- £4.95 delivery for small items
Channel Islands
- Postcodes Covered: GY*, IM*, JE*
- Minimum Order: £50
- Delivery Fee: £70
Northern Ireland, Offshore Territories & Scottish Islands
- Postcodes Covered: BT*, HS*, KW, ZE
- Minimum Order: £50
- Delivery Fee: £35
Same Day Delivery
- Eligible Postcodes:
E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW* - Minimum Order: £50
- Same Day Delivery Fee: £70
- Special Requests or Locations:
For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.
Collections
Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.
Collection address: 284 Water Rd, Unit 9, London, HA0 1HX
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