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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 daysAll-in-one systemDeye

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 an all-in-one micro storage system that packs a 2500 W single-phase hybrid inverter and a 2.56 kWh LiFePO4 battery into one IP65 body. It is made for balconies, terraces, small roofs and holiday homes: it plugs into a household socket, stores the surplus from the panels and gives it back in the evening, working both on-grid and off-grid with ≤ 4 ms switchover.

It accepts up to 5760 W of PV on 4 independent MPPTs, so four panels with different tilts and orientations can be used without mismatch losses. The system is scalable: up to 3 inverters in parallel (7.5 kW) and 5 stacked batteries (12.8 kWh) per cluster, up to 102.4 kWh in a full configuration. Monitoring and control over Wi-Fi, Bluetooth and LoRa with the Deye Cloud app, ≥ 6000 cycles and a 10-year warranty.

Key features

Inverter and battery in one bodyA single 30 kg IP65 unit holds a 2500 W hybrid inverter and a 2.56 kWh LiFePO4 battery: no DC wiring to size.
4 MPPTs for 4 panelsFour independent trackers with a 20-55 V range accept up to 5760 W in total, even with panels facing different ways.
Backup in ≤ 4 msSwitchover between grid and island mode takes 4 milliseconds, so connected loads never notice the transition.
Scalable to 102.4 kWhUp to 3 inverters in parallel and 5 stacked batteries per cluster, up to 8 clusters and 40 batteries at full build-out.

Technical specifications

FeatureValue
Product codeSUN-BK250-2.56KWH-EU-AM4-32L
Rated AC output power2500 W
Max. AC output power2500 W
Integrated battery capacity2.56 kWh (2560 Wh)
Battery chemistryLiFePO4
Battery voltage51.2 V nominal (44.8-57.6 V range)
Cycle life≥ 6000 (25 °C ±2 °C, 70% EOL)
Max. PV input power5760 W
No. of MPPT and strings4 MPPT, 1+1+1+1
MPPT voltage range20-55 V (start-up 25 Vdc)
Rated PV input voltage42.5 V
PV current per input10 A (short circuit 9.6 A)
Output voltage and frequency220/230 Vac, 50 Hz (45-55) / 60 Hz (55-65)
Max. AC output current12.5 A
Single cluster expansionup to 3 inverters in parallel (7.5 kW) and 5 stacked batteries (12.8 kWh)
Max. system expansion8 clusters, 40 batteries, 102.4 kWh
On-grid / off-grid switchover≤ 4 ms
Max. efficiency96.5%
MPPT efficiency> 99%
Communication and controlWi-Fi, Bluetooth, LoRa; Deye Cloud app and local control
Ingress protectionIP65
Dimensions and weight560×330×210 mm - 30 kg
Operating temperature-10 to 55 °C (-20 to 55 °C with optional heating)
Humidity and altitude0-95% non condensing, altitude ≤ 2000 m
ProtectionsDC reverse polarity, AC overcurrent and overvoltage, short circuit, thermal, insulation, anti-islanding, Type II DC and AC surge arresters
CertificationsCEI 0-21, EN 50549-1, VDE-AR-N 4105, VDE 0126, IEC 61727/62116, G98, C10-11, UNE 217002
Warranty10 years

Documentation

PDFDatasheet SUN-BK(80-250)-2.56KWH-EU-AM4-(18-32)LOfficial manufacturer documentPDFDichiarazione di conformità UEOfficial 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.