Deye BOS-G-Pack 5.1 Pro
| Capacity (kWh) | 5.12 |
| Battery voltage (V) | 51.2 |
| Technology | LFP |
| Capacity (kWh) | 5.12 |
| Battery voltage (V) | 51.2 |
| Technology | LFP |
Description
Convenient • Quick installation standard of 19-inch embedded designed module is comfortable for installation and maintenance. Intelligent BMS • It has protection functions including over-discharge, over-charge, over-current and over-high or low temperature. The system can automatically manage charge and discharge state and balance current and voltage of each cell. Eco-friendly • The whole module is non-toxic, non-polluting and environmentally friendly. Safe and reliable • Cathode material is made from LiFePO4 with safety performance and long cycle life, The module has less self-discharge, up to 6 months without charging it on shelf, no memory effect, excellent performance of shallow charge and discharge. Flexible configuration • Multiple battery modules can be in parallel for expanding capacity and power. Support USB upgrade, remote up grade (Compatible with Deye inverter). Wide temperature • Working temperature range is from -20°C to 55°C, with excellent discharge performance and cycle life.
Product details
| Type | High Voltage |
| Series Name | BOS-G Pro |
| Model Name | BOS-G-Pack 5.1 (Pro) |
| Degree of protection (IP) | IP20 |
| Max Charging / Discharging temperature | 55/55 |
| Min Charging / Discharging temperature | 0/-20 |
Measurements
| Length (mm) | 133 |
| Width (mm) | 440 |
| Height (mm) | 133 |
| Weight (kg) | 46 |
High-Voltage LiFePO4 Battery Storage Module BOS-G-Pack 5.1 Pro by Deye
Compact, rack‑mounted energy storage module designed for residential and commercial PV installations. The BOS-G‑Pack 5.1 Pro integrates intelligent protection and battery management, enabling safe, scalable storage with easy installation and future-proof compatibility with Deye inverters. Built around LiFePO4 chemistry, it delivers eco-friendly, long‑lasting energy storage with reliable performance across a wide operating temperature range.
Applications and use cases
The BOS-G-Pack 5.1 Pro is purposefully engineered for home energy storage, small commercial applications, and backup scenarios where reliable, modular storage is required. Its standard 19‑inch embedded design supports quick installation and straightforward maintenance, while its flexible configuration lets multiple modules be paralleled to increase capacity and power as energy needs grow. With broad environmental tolerance and a focus on safety, this module is suitable for installations in spaces with variable temperatures and limited space, and it remains compatible with Deye inverters for integrated PV storage solutions.
- 19-inch rack‑mount design simplifies mounting in electrical racks and cabinets
- Parallel-ready to scale capacity and power by adding more modules
- LiFePO4 chemistry for enhanced safety, long cycle life, and low self-discharge
- Wide operating temperature range supports installations from -20°C to 55°C
- Environmentally friendly, non-toxic materials with minimal environmental impact
- USB upgrade and remote upgrade capabilities to maintain compatibility with inverters
Key electrical and performance parameters
The BOS-G-Pack 5.1 Pro delivers a solid energy storage platform with a compact footprint and clear, user‑benefit oriented specifications. It provides a 5.12 kWh usable capacity at a nominal 51.2 V, built on LiFePO4 cells for safety and durability. The enclosure carries an IP20 rating, and its dimensions and weight are tailored for easy handling and integration into existing electrical environments. A flexible, modular approach allows expansion through linking additional modules, while the internal BMS actively manages charging, discharging, and cell balance to optimize performance and longevity.
- Capacity: 5.12 kWh usable energy; Battery voltage: 51.2 V; Chemistry: LiFePO4
- Enclosure protection: IP20; Dimensions: 133 mm (L) × 440 mm (W) × 133 mm (H); Weight: 46 kg
- Parallel expansion: Multiple modules can be connected to increase total capacity and power
- Intelligent BMS with protection against over‑discharge, over‑charge, over‑current and temperature extremes
- Wide operating temperature range supports reliable discharge performance in demanding environments
- Low self‑discharge with up to six months shelf life; no memory effect; suitable for shallow charge/discharge cycles
- USB upgrade and remote upgrade compatibility with Deye inverters for future‑proofing
Battery and backup capabilities
The BOS-G-Pack 5.1 Pro is designed to deliver dependable energy storage with a focus on safety and longevity. LiFePO4 cathode chemistry provides a strong safety profile and long cycle life, while the intelligent BMS continuously balances current and voltage across cells to maximize lifespan. The module can operate as a discrete energy reservoir or be combined with additional BOS‑G modules to build larger storage capacity and higher discharge power, making it suitable for both residential resilience and commercial storage needs. Its non‑toxic construction and broad temperature tolerance ensure reliable operation in varied deployment scenarios, and USB plus remote upgrade support helps maintain compatibility with your Deye inverter ecosystem.
- Long cycle life and high safety profile from LiFePO4 chemistry
- Balanced charge/discharge with per‑cell monitoring for consistent performance
- Scalable storage by paralleling multiple BOS‑G Packs to meet growing energy needs
- Backup capability for solar or grid‑tied systems when paired with an appropriate inverter
- Non‑memory, low self‑discharge design supports stable storage and quick re‑use
- Continuous compatibility with inverters through USB and remote upgrade options
