Deye SE-G5.1Pro-B 5.12 kWh – Flexible LiFePO4-based battery module

The Deye SE-G5.1Pro-B is a high-performance battery module with a storage capacity of 5.12 kWh, based on safe lithium iron phosphate (LiFePO4) technology. With its modular design, support for high-current applications and flexibility in installation, it is the ideal solution for modern energy storage systems in both domestic and commercial settings.

Key features at a glance

• Safe & durable: Cobalt-free LiFePO4 cells with intelligent BMS
   
• Modular and scalable: Up to 64 modules – max. 327 kWh storage capacity
   
• High compatibility: Suitable for wall mounting, floor mounting and 19" racks
   
• Easy maintenance: Automatic networking, remote monitoring & USB firmware updates
   
• Reliable operation: IP20, natural cooling, wide temperature range down to -20 °C

Compact, scalable & intelligently networked

With an individual capacity of 5.12 kWh, the Deye SE-G5.1Pro-B is ideal for smaller storage solutions or as a building block in large-scale modular storage systems. Thanks to the ability to connect up to 64 units in parallel, a maximum total capacity of 327 kWh is achievable. Perfect for applications with growing energy requirements. Automatic network addressing and support for firmware updates via USB or remote access make commissioning and maintenance considerably easier.

Flexible mounting options – space-saving & easy to install

Thanks to three mounting options – rack mounting (19-inch), wall mounting or floor installation – the module can be positioned optimally in almost any environment. With its compact design, measuring just 133 mm in height, it saves valuable space in technical rooms or living areas.

Who is the Deye SE-G5.1Pro-B suitable for?

• Private households looking for a safe and future-proof storage system
   
• Commercial enterprises requiring scalable storage solutions for self-consumption or backup
   
• System integrators and installers who prioritise easy integration and low maintenance
   
• Sustainability-minded users who rely on environmentally friendly storage technology

FAQs on the Deye SE-G5.1Pro-B battery storage system

How much energy is actually usable?

One module provides a gross capacity of 5.12 kWh, of which approximately 4.6 kWh is usable at a 90% depth of discharge; it is particularly suitable for domestic and commercial applications.

What are the applicable voltages and currents per module?

The module operates at a nominal voltage of 51.2 V and has a capacity of 100 Ah. The continuous current is 50 A, with a peak current of up to 150 A possible for 10 seconds.

How many modules can be combined?

In the IP20 version, up to 64 modules can be connected in parallel, corresponding to a total capacity of over 327 kWh. Common in domestic applications: six modules per tower, i.e. 30.7 kWh per unit.

How long does the module last?

The cells achieve over 6,000 cycles at 90% DoD, with a residual capacity of at least 70% at end of life, meaning they are designed for long-term use.

Which ‘ Deye ’ inverters is the system compatible with?

The battery is officially approved for all three-phase hybrid inverters in the SUN-xK-HP3 and SUN-xK-BM series, and is fully plug-and-play compatible without the need for any additional adjustments. We strongly recommend checking the compatibility list, as the manufacturer may make changes.

Contents of the Deye SE-G5.1Pro-B rack battery module (5.12 kWh):

Module type

• This is a a single, flexible low-voltage battery module for installation in 19-inch racks, wall mounting or floor-standing.

1 x Deye SE-G5.1Pro-B battery module (5.12 kWh)

• The central storage unit with 5.12 kWh (100 Ah) in rack format, including a smart, integrated battery management system (BMS).

1 x set of mounting handles / rack ears

• Handles for easier handling and for securing the module in a 19-inch server rack.

1 set of battery connection cables (positive & negative)

• A pair of pre-assembled high-performance cables for connecting the module (or battery stack) to a compatible hybrid inverter.

1 x communication cable (CAN/RS485)

• A data cable for communication between the battery module and the inverter.

1 x parallel connection cable (power & communication)

• Short cables to connect this module’s power and data bus to another module.

1 x earth cable

• A protective earth cable for the correct earthing of the housing.

1 x User and Installation Guide

• A printed manual describing the various installation types (rack, wall, stacking).

2 x wall brackets

• For wall mounting the battery pack

4 x feet

• For stacking and securing the battery