AC-coupled (retrofit onto existing solar)

Sunpura S4800 AC 4.8 kWh

The 4.8 kWh AC-coupled model. Add a full evening of storage and backup to a home that already has solar, without rewiring the array.

4.8 kWh
usable energy
2,400 W
rated power
6,000
cycles (70% SOH)
10 yr
warranty
Sunpura S4800 AC retrofit home battery

What it is

The Sunpura S4800 AC is the 4.8 kWh AC-coupled model: it adds larger storage and backup to a home that already has solar. Instead of connecting panels directly, it couples onto your existing solar and inverter over AC, so there is no rewiring of the array. A dual-CT meter reads your existing inverter, giving the system a complete picture of what your home produces and uses.

More storage for a home that already has solar

Where the S2400 AC adds a compact 2.4 kWh, the S4800 AC doubles it to 4.8 kWh, enough to carry a typical home through the evening and overnight, or to hold a larger backup reserve. It stacks and expands to 14.4 kWh as your needs grow.

Why AC-coupled

  • Retrofit-friendly: works alongside most existing inverters and solar systems, no re-cabling of the panels.
  • Dual-CT metering: accurate, whole-home energy awareness.
  • Same trusted platform: LiFePO4 cells, 6,000 cycles, 90% depth of discharge.
  • Plug-and-play and stackable, managed in the Sunpura HOME app.

Certification

European and international certification (CE/EMC, RED, LVD, CB, RoHS, REACH, UN38.3, IP65, WEEE, VDE 4105, EN 50549 and more). South African NRCS and NRS 097-2-1 compliance is being completed as part of Sunpura’s market entry; we make no South African certification or grid feed-in claims until it is in place.

Full specifications

S4800 AC technical parameters

AC coupling
Max AC input (AC coupled)2,400 W
MeteringDual-CT (reads third-party inverter)
Works withan existing rooftop PV / inverter system
PV inputNot applicable (AC-coupled)
Battery
ChemistryLiFePO4 (LFP)
Nominal voltage48 V
Rated energy4,800 Wh (4.8 kWh)
Max charge / discharge current50 A
Rated power2,400 W
Cycle life6,000 cycles at 70% SOH
Depth of discharge90%
AC output (backup / off-grid)
Max output power2,400 W
Max output current10.9 A
Peak output (5 s)3,600 W
Nominal output220 / 230 VAC, 50 Hz
General
Protective classClass I
Operating temperature-20 C to 55 C
Ingress protectionIP65
Net weightPower Box 14 kg + Battery Box 47.85 kg
Dimensions (W x H x D)450 x 645 x 285 mm
CommunicationWi-Fi / Bluetooth
Warranty10 years

Certification

European and international certification. South African NRCS / NRS 097-2-1 compliance is being completed as part of Sunpura's market entry.

CE / EMCREDLVDCBRoHSREACHUN38.3IP65WEEEVDE 4105EN 50549

Interested in the S4800 AC?

Request a quote, or partner with Sunpura as a distributor or installer.