DEYE BOS-B Commercial Battery System

Deye Battery Datasheet — BOS-B

A commercial 768 V battery cabinet of 14.3 kWh LiFePO4 modules, reaching 215 kWh per cabinet and 4,300 kWh across 20 parallel units.

SKU: DEYE-BOS-B | Last Updated: 2026-01-24

⚡Electrical Specifications

Energy14.3 kWh
Usable Energy193.05 kWh
Module Energy14.3 kWh
System Energy215 kWh
Max. Capacity4300 kWh
Nominal Voltage51.2 V
Module Nominal Voltage51.2 V
System Nominal Voltage768 V
Operating Voltage208-876 V
Rated Capacity280 Ah
Module Capacity280 Ah
Cell ChemistryLiFePO4
Cycle Life>6000
End-of-Life Capacity70 %
Recommended Depth of Discharge90 %
Rated DC Power43.008-129.024 kW
Max. Charge Current168 A
Max. Discharge Current168 A
Max. Charge/Discharge Current168 A
Nominal Charge/Discharge Current168 A
Max. Round-Trip Efficiency98.5 %
Modules in Series15
Min. Battery Module Quantity5
Battery Module ModelsBOS-B70, BOS-B85, BOS-B100, BOS-B110, BOS-B125, BOS-B140, BOS-B155, BOS-B170, BOS-B185, BOS-B200, BOS-B215
Parallel Units20
Built-in Circuit BreakerCircuit Breaker
Warranty (Years)10

🔧Mechanical Specifications

Communication PortsTCP, RS485, CAN
Communication ProtocolCAN
Dimensions2150 x 1136 x 800 mm
Additional NotesBackup Time (16 racks): Up to 32; Max 16 racks per single PCS; 1.1x overload; module BOS-B-Pack14.3, PDU BOS-B-PDU-2
Module Dimensions795.9 x 274.2 x 526 mm
Module Weight123 kg
Status IndicatorLCD: SOC / Fault Code; Yellow: Battery High Voltage Power On; Red: Battery System Alarm
Weight680-1944 kg

🌡️Environmental Specifications

Altitude<3000 m
Charge Temperature0-55 °C
Discharge Temperature-20 to 55 °C
Fire SuppressionAerosol
Operating Humidity5-85 %
Installation LocationRack-Mounted
Enclosure IP RatingIP20
Storage Temperature0-35 °C
Cooling TypeSmart Fan Cooling
Working TemperatureCharge: 0-55 / Discharge: -20 to 55 °C

✅Certifications

CEIEC62619IEC62040UN38.3