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Deye SUN-BK250-2.56KWH-EU-AM4-32L All-in-One Hybrid System 2.5 kW 2.56 kWh

Deye SUN-BK250-2.56KWH-EU-AM4-32L All-in-One Hybrid System 2.5 kW 2.56 kWh

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Delivery in 10-20 daysInverterLow voltageDeye

Deye SUN-BK250-2.56KWH-EU-AM4-32L All-in-One Hybrid System 2.5 kW 2.56 kWh

The Deye SUN-BK250-2.56KWH-EU-AM4-32L is not an ordinary string inverter but a compact integrated storage system: a single IP65 enclosure houses a 2.5 kW single-phase hybrid inverter and a 2.56 kWh LiFePO4 battery. It converts the energy from the PV modules into 230 V AC, charges the battery and regulates the exchange with the grid, with a zero export function controlled wirelessly.

It is intended for balcony systems, small residential users and portable applications: it connects to a standard domestic socket and works in grid-connected hybrid, off-grid or AC-coupled mode to add storage to an existing balcony system with microinverters. PV input up to 5,760 W across 4 independent MPPTs, grid/off-grid switchover in less than 4 ms for UPS-grade backup. Up to 3 units in parallel (7.5 kW) and capacity expandable with external battery modules from the same family.

Key features

Inverter and Battery in One Unit2.5 kW of AC power and 2.56 kWh of LiFePO4 storage in a single IP65 device, with no additional components.
Four Independent MPPTsAccepts up to 5,760 W of PV across 4 separate trackers: handles modules with different orientations and exposures.
UPS-Grade SwitchoverThe transition between grid and off-grid operation takes ≤ 4 ms, imperceptible to routers, computers and refrigerators.
Plug and PlayIt connects to a standard domestic socket; the zero export function is managed wirelessly, useful where feeding into the grid is not permitted.
ExpandableUp to 3 units in parallel for 7.5 kW in total and storage capacity expandable with external battery modules.
Outdoor and Long TermIP65 protection rating for outdoor installation and a declared 10-year warranty.

Technical specifications

FeatureValue
Product codeSUN-BK250-2.56KWH-EU-AM4-32L
TypeSingle-phase hybrid micro storage system (integrated inverter + battery)
Rated AC power2,500 W
AC outputSingle-phase L/N/PE, 220 / 230 V, 50 Hz (45-55 Hz) or 60 Hz (55-65 Hz)
Maximum AC current12.5 / 12 A
Maximum PV power5,760 W
Number of MPPTs4 (1 string per MPPT)
MPPT voltage range20 - 55 V
Rated PV voltage42.5 V
Start-up voltage25 V CC
Maximum PV input current9.1 / 8.7 A
Maximum PV short-circuit current10 / 9.6 A
Battery capacity2.56 kWh (2,560 Wh)
Battery cell chemistryLiFePO4
Battery voltage44.8 - 57.6 V
Maximum charge / discharge current50 A
Maximum efficiency96.5 %
Grid / off-grid switching time≤ 4 ms
Units in parallelup to 3 (7.5 kW)
Protection degreeIP65
CommunicationWi-Fi, Bluetooth, LoRa
Operating temperature-10 - +55 °C
Dimensions560 × 330 × 210 mm
Weight30 kg
Warranty10 years

Documentation

PDFDatasheetOfficial manufacturer document

Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.