Fox ESS · 4.74 kWh · 1-phase HV battery module (slave)
Fox ESS EC4800-2H 4.74kWh HV battery (slave)
A 4.74kWh slave module for Fox ESS EC4800-2H high-voltage towers. Order it when the original install no longer covers the load, usually because an EV charger or heat pump arrived after the battery did.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
Household demand rarely stands still, and a stack sized correctly two years ago can look thin once the driveway gains a charge point. The slave is the answer that keeps the original investment intact: the existing master stays in charge, the new module joins the tower, and the customer's capacity climbs by 4.74kWh per unit added. For the installer it is a quick revisit rather than a rebuild. Check the live stock figure above before you promise a date, then order on the trade account.
Specification
| Brand | Fox ESS |
|---|---|
| Part number | FE-HV-ECS-4800 |
| Capacity | 4.74 kWh |
| Phase | Single-phase |
| Condition | New |
| Category | Batteries · Li-ion Battery Pack |
| Delivery method | Pallet freight (UN3480 Class 9 dangerous goods) |
Datasheets & manuals
What it pairs with
It belongs with the EC4800-2H 4.74kWh master listed alongside; multiple slaves join one master as the design allows. The tower runs with Fox single-phase hybrids such as the H1 range. Where an older master is being extended, revision and firmware matter, so verify the pairing on Fox ESS's current stacking list before the revisit is booked.
Single-phase ecosystem, and the module is capacity only: without an EC4800-2H master heading the stack it does nothing. 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