Deye BOS-G-PRO-Pack5.1 - 5.12 kWh high-voltage battery module for high-performance PV storage systems

The DEYE BOS-G-PRO-Pack5.1 is a reliable, safe and efficiently scalable high-voltage battery module for demanding applications in PV storage systems. With a nominal energy of 5.12 kWh and advanced LiFePO₄ technology, it impresses with its high level of safety, long service life and easy integration into high-voltage systems.

Highlights at a glance

• High-voltage solution: Ideal for modern PV systems and Deye hybrid inverters
   
• Reliable & safe: LiFePO₄ cells with intelligent BMS for maximum protection
   
• Flexible expansion: Can be parallel connected for scalable energy storage solutions
   
• Easy integration: 19” rack format for space-saving and fast installation
   
• Remote maintenance possible: Supports USB, WLAN (optional) & remote firmware updates

Designed for professional high-voltage systems

With a nominal voltage of 51.2 VDC and 100 Ah capacity, the BOS-G-PRO-Pack5.1 is ideal for PV distributors, installers and system integrators. The modules are easy to install in the rack and require at least four units and a separate control box to form a complete storage system.

The intelligent battery management system (BMS) provides reliable protection against overcharging, deep discharge, overcurrent and temperature deviations, and automatically balances voltages between the cells.

Versatile and durable

Thanks to its compact dimensions (440 × 570 × 133 mm) and light weight of just 45 kg, the module is suitable for both commercial and larger private installations. The high-voltage battery can be stored for up to 6 months without recharging and with no memory effect or performance loss.

Who is the DEYE BOS-G-PRO-Pack5.1 suitable for?

• Installers & project planners integrating high-voltage storage in system solutions
   
• Commercial users needing powerful, expandable storage solutions
   
• PV system providers seeking scalable storage systems with Deye compatibility
   
• Technically demanding applications requiring remote maintenance & intelligent control

FAQs about the DEYE BOS-G-PRO-Pack5.1

How much energy does a module actually deliver?

One module provides 5.12 kWh of gross capacity. Of this, about 4.6 kWh is actually usable at 90 % depth of discharge, ideal for modular storage solutions.

Which nominal values apply?

Each module operates with 51.2 V nominal voltage and 100 Ah capacity. The recommended continuous current is 40 A, and a peak current of 50 A is possible in the short term.

How many modules can I use?

For a high-voltage tower, a minimum of 4 and a maximum of 12 modules are permissible, which corresponds to around 20 kWh to 61 kWh per tower.

Can I retrofit modules later?

Yes, the system is scalable: up to 12 modules per tower and up to 10 towers in parallel can be operated, providing a total capacity of over 300 kWh.

Which Deye inverters is the battery compatible with?

The storage is fully plug-&-play-capable for all three-phase hybrid inverters of the SUN-xK-HP3 and SUN-xK-BM series, without additional hardware or software modifications.

Scope of delivery DEYE BOS-G-PRO-Pack5.1 high-voltage battery module (5.12 kWh):

Module type

• This is a pure high-voltage expansion module for an existing Deye BOS-G system. It requires a separate Deye control box (BMS) for operation.

1 x Deye BOS-G-PRO-Pack5.1 battery module (5.12 kWh)

• A pure high-voltage battery module with 5.12 kWh, stacked as part of a battery tower onto a control box or another module.

1 x connecting bridge / series circuit cable (short)

• Short, robust cables or a fixed bridge to connect this module to an existing module (or the control box).

1 x grounding cable (short)

• A short protective conductor cable for connection to the ground point of the neighbouring module.

1 x mounting accessories

• Includes screws or latches to securely stack the module on an existing unit.

1 x installation manual for expansion module

• A manual that specifically describes the extension of an existing tower system.