Deye BOS-G HV Lithium Battery Storage System - CEC Approved

The Deye BOS-G HV is a Small-Scale C&I Energy Storage Solution that is designed to meet diverse energy needs

The Deye BOS-G Series is a high-voltage lithium iron phosphate (LiFePO4) battery system designed for safe, efficient, and flexible energy storage. Built with long cycle life and stable performance, it offers a reliable solution for residential and commercial solar applications.

Designed to pair with Deye HV Hybrid Inverters available here, the BOS-G Battery system features modular scalability and advanced battery management, ensuring balanced performance, protection against overcharge and discharge and consistent operation across a wide temperature range. Its rack-mount design makes installation straightforward, while remote upgrade capability supports long-term system adaptability.

Clean Energy Council (CEC) approved battery. What Is This?

Purchasing this entitles you to the Cheaper Home Batteries Program.
See How Much You Can Save Here.

Main Features

Reliable Battery & Warranty: Built with safe LiFePO₄ cells and an intelligent BMS, the system ensures dependable performance. Backed by a 10-year warranty for long-term peace of mind.
Intelligent Protection & Control: Provides full protection against over-discharge, over-charge, over-current, and abnormal temperatures. Features automatic charge/discharge management and cell balancing for consistent efficiency.
Efficient & Flexible Use: Offers low self-discharge for up to 6 months of storage with no memory effect. Supports scalable expansion with 3–12 packs in series to match different energy needs.
Smart Management: Enables remote monitoring, upgrades, and system control for simple, convenient maintenance anytime, anywhere.

BOS-G Variants

Model	System Energy (kWh)	Usable Energy (kWh)	System Voltage (V)	Operating Voltage (V)	Modules in Series	Rated DC Power (kW)
BOS-G15	15.36	13.82	153.6	124.8 – 175.2	3	15.36
BOS-G20	20.48	18.43	204.8	166.4 – 233.6	4	20.48
BOS-G25	25.6	23.04	256	208 – 292	5	25.6
BOS-G30	30.72	27.64	307.2	249.6 – 350.4	6	30.72
BOS-G35	35.84	32.25	358.4	291.2 – 408.8	7	35.84
BOS-G40	40.96	36.86	409.6	332.8 – 467.2	8	40.96
BOS-G45	46.08	41.47	460.8	374.4 – 525.6	9	46.08
BOS-G50	51.2	46.08	512	416 – 584	10	51.2
BOS-G55	56.32	50.68	563.2	457.6 – 642.4	11	56.32
BOS-G60	61.44	55.29	614.4	499.2 – 700	12	61.44

Common Specifications

Attribute	Value
Cell Chemistry	LiFePO4
Module Specification	100 Ah / 5.12 kWh per module
Recommended DOD	90%
Cycle Life	≥ 6000 cycles @ 25 °C
Max Charge/Discharge Current	125 A
Operating Temperature Range	−20 °C — 55 °C
Enclosure Rating	IP20
Protection Features	Over-voltage, under-voltage, over-current, short-circuit, temperature monitoring
Warranty	10 years

System Components

BOS-G BMS - HVB750V/100A-AU

Quick Specs

• Operating Voltage: 120 - 750Vdc
  
• Nominal Charge / Discharge Current: 100A
  
• Max.Charge / Discharge Current:  125A
  
• DC Input Rating:  12±2%V/4.15A 
  
• Operating Temperature Range: -20~65°C
  
• Ingress Protection: IP20
  
• Dimension (W/D/H): 440*570*150mm 
  
• Weight Approximate: 15.5 kg
  

BOS-GM5.1 -  5.12 kWh Battery Module

Quick Specs

• Battery Type: LiFePO4(LFP)
  
• Nominal Voltage: 51.2Vdc
  
• Rated Capacity: 5.12kWh
  
• Rated Energy: 100Ah                       
  
• Nominal Charge / Discharge Current: 100A 
  
• Peak Discharge Current: 125A
  
• Charge Temperature: 0~55°C
  
• Discharge Temperature:  -20℃ - 55°C 
  
• Storage Temperature: 0℃ - 35°C
  
• Ingress Protection: IP20
  
• Dimension (W/D/H):  440*570*133mm
  
• Weight Approximate: 44 kg
  

BOS-G 13 Module Rack

3U-HRACK-  Standard 19-inch rack, can install 12 pcs batteries and 1 pcs High Voltage Battery cluster control box

• Dimension (W/D/H): 589*590*2240mm 
  
• Weight Approximate: 85kg

Deye BOS-G Installation Video

About The Brand

Specifications

Deye BOS-G HV Lithium Storage System DATASHEET

DEYE on Battery Expansion and Insulation Fault STATEMENT

Manual

Deye BOS-G Installation and Operation INSTRUCTIONS