Suncloud Energy — Deye Technical Hub
BOS-G Pro High-Voltage Battery · 25.6–87.04 kWh
Battery HV

BOS-G Pro High-Voltage Battery · 25.6–87.04 kWh

BOS-G Pro (G25–G85)

25.6–87.04 kWh

19-inch rack-mounted high-voltage LFP for small-scale C&I storage, 25.6–87.04 kWh from 5–17 stackable 5.12 kWh modules (BOS-G25 Pro … BOS-G85 Pro). Cobalt-free LiFePO4, 100% usable (100% DoD), ≥6000 cycles, aerosol fire suppression, up to 16 racks in parallel.

CommercialUtility
System energy
25.6–87.04 kWh
Usable energy
25.6–87.04 kWh (100% DoD)
Modules
5–17 × 5.12 kWh
System voltage
256–870.4 V
Chemistry
LiFePO4 (cobalt-free)
Nominal current
100 A (peak 125 A)
Cycle life
≥6000 (70% EOL)
Warranty
10 years

✓ Specs verified against the official Deye datasheet.

Specifications

Module

Cell chemistry
LiFePO4
Module energy
5.12 kWh
Module nominal voltage
51.2 V
Module capacity
100 Ah

System

Models
BOS-G25 Pro … BOS-G85 Pro (13 configurations)
Modules in series (optional)
5 (min) – 17 (max)
System nominal voltage
256 V (G25) – 870.4 V (G85)
System operating voltage
220–292 V (G25) … 748–992.8 V (G85)
System energy
25.6 – 87.04 kWh (5.12 kWh per module step)
System usable energy
25.6 – 87.04 kWh (= system energy at 100% DoD)
Rated DC power
25.6 – 87.04 kW
Recommended depth of discharge
100%

Charge/discharge

Recommended current
50 A
Nominal current
100 A
Peak discharge
125 A (2 min, 25 °C)

General

Working temperature
Charge 0–55 °C · Discharge −20–55 °C
Storage temperature
0–35 °C
Communication port
CAN 2.0 / RS485
Humidity
5%–85% RH
Altitude
≤3000 m
IP rating
IP20
Dimensions (W×D×H)
530 × 602 × 1629 mm (5–8 modules) · 530 × 602 × 2219 mm (9–12) · 1060 × 602 × 1629 mm (13–17)
Weight (approx.)
290 kg (G25) – 883 kg (G85)
Installation
Rack mounting (19″)
Cycle life
≥6000 (25 °C ± 2 °C, 0.5C/0.5C, 70% EOL)
Certification
UN38.3 / CE / CE-EMC / IEC62040 / CEC / VDE
Warranty
10 years

Downloads

Highlights

  • Modular HV stack — combine 5–17 × 5.12 kWh modules (BOS-G Pack5.1) for 25.6–87.04 kWh per cluster, in 13 configurations from BOS-G25 Pro to BOS-G85 Pro.
  • 100% usable energy — rated at 100% depth of discharge, so system usable energy equals nameplate system energy (test conditions: 100% DOD, 0.3C charge/discharge at 25 °C).
  • 19-inch embedded module design for quick installation and maintenance, with up to 16 racks in parallel.
  • Cobalt-free LiFePO4 with intelligent BMS (over-charge/discharge, over-current and temperature protection plus cell balancing).
  • Aerosol fire suppression support and a wide −20 °C to 55 °C working range.
  • ≥6000 cycles at 100% DoD (70% EOL), backed by a 10-year warranty.

Figures are from the official Deye BOS-G Pro Series brochure (20251218 V1.0). System usable energy may vary with system configuration; confirm the exact variant against the linked datasheet before quoting or commissioning.