Fox ESS · 4.66 kWh · 1-phase HV battery module
Fox ESS EQ4800 4.66kWh HV battery (slave)
Extension buyers order the FE-HV-EQS-4800, a 4.66kWh Fox ESS high-voltage slave module, when a stack that already has a master needs more capacity. If a customer's tower is in place and short on storage, this is the part that grows it in 4.66kWh steps.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
Extension work is bread-and-butter trade: the system is proven, the customer wants more, and one slave module is often the entire parts list. Buying the module singly means you match the job exactly instead of carrying a bundle you do not need, and buying several stocks the van for a season of top-ups. Each unit added is a 4.66kWh increment against the existing master, which keeps quotes simple and honest. The trade price shown is what you pay at any volume, from UK stock.
Specification
| Brand | Fox ESS |
|---|---|
| Part number | FE-HV-EQS-4800 |
| Power rating | 4.66 kW |
| Capacity | 4.66 kWh |
| Phase | Single-phase |
| Condition | New |
| Category | Batteries · Li-ion Battery Pack |
| Delivery method | Pallet freight (UN3480 Class 9 dangerous goods) |
What it pairs with
It extends stacks built on the EQ4800 master (FE-HV-EQM-4800), and the same capacity arrives pre-bundled in the EQ4800-L2 through L9 stacks if a whole system is the better sell. Family-level inverter partners are the Fox ESS single-phase hybrids. Slave counts per master vary by firmware revision, so check Fox's current stacking list before adding modules.
A slave module only, so it cannot operate without an EQ4800 master in the stack. Single-phase only, and above 3.68 kW this needs G99 approval before install. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-07-19