Voltacon BESS 11kW Off Grid Power Cabinet with Pylontech Lithium Batteries

The Voltacon BESS, also known as a Silent Power Cabinet, is a complete plug and play off grid power solution designed for customers who want fast installation, professional integration and long-term reliability.

Built inside an IP65 waterproof industrial cabinet, this all-in-one system combines a powerful single phase 11kW off grid inverter with integrated Pylontech lithium battery storage, manual changeover switch and Solar Assistant online monitoring platform. It is made for homes, farms, workshops, remote buildings and backup power applications where performance, simplicity and safety matter most.

Instead of installing separate batteries, inverter, switchgear and monitoring equipment on site, the Voltacon BESS delivers everything in one engineered enclosure. This reduces wiring time, improves system presentation and helps eliminate installation errors.

Key Features

• 11kW single phase off grid power system
• 24kWh nominal lithium battery storage using 5 x Pylontech US5000C batteries
• 22.8kWh usable energy based on 95% depth of discharge
• IP65 waterproof industrial cabinet for indoor or sheltered outdoor installation
• Plug and play design for faster and cleaner installation
• Manual changeover switch for easy source transfer and maintenance isolation
• Solar Assistant online monitoring platform included
• Integrated inverter, batteries, protection and communications in one cabinet
• Suitable for homes, workshops, cabins, farms and off grid buildings
• Expandable concept based on modular Pylontech battery storage

Built for serious off-grid performance

The heart of the system is the Conversol MAX-II 11kW inverter charger, a high-performance 48V off grid inverter designed for demanding domestic and light commercial applications. It delivers pure sine wave output, dual MPPT solar charging, strong surge capability and intelligent load management in a single compact platform.

Combined with 5 x Pylontech US5000C lithium batteries, the system offers dependable daily cycling, strong long-term performance and advanced BMS protection. This makes the cabinet ideal for users who want reliable energy independence day and night.

Simple installation, professional finish

The Voltacon BESS is engineered to reduce installation complexity. With the core equipment integrated inside one cabinet, the installer only needs to connect the solar PV input, AC load supply and any required backup source according to the final design. This saves time on site and gives a cleaner, more professional result than building a system from separate components.

IP65 waterproof industrial cabinet

The system is assembled in a robust industrial cabinet with IP65 weatherproof protection. This cabinet style improves equipment protection against dust and water ingress and supports dependable operation in more demanding environments. It also provides a tidy and secure enclosure for the inverter, batteries, switchgear and monitoring hardware.

Manual changeover switch included

A built-in manual changeover switch allows straightforward transfer between power sources and supports safer maintenance procedures. This is especially useful where the installation requires user control, backup source selection or simple operational switching.

Solar Assistant monitoring platform

The cabinet includes the Solar Assistant online monitoring platform, giving you improved visibility of battery status, inverter operation, solar production and system performance. This makes remote supervision and fault finding easier for both end users and installers.

Ideal Applications

• Off grid homes
• Remote properties
• Farm buildings and agricultural sites
• Workshops and garages
• Holiday homes and cabins
• Backup power systems
• Technical rooms and essential services loads

Why choose this Voltacon BESS?

• Factory-integrated and easier to install than separate components
• High storage capacity with trusted Pylontech lithium technology
• Powerful 11kW inverter suitable for serious off grid loads
• Strong solar charging performance with dual MPPT inputs
• Better equipment protection with IP65 industrial enclosure
• Clean, professional cabinet build with organised internal layout
• Remote monitoring and easier diagnostics with Solar Assistant

Technical Summary

• System type: Plug and play BESS / Silent Power Cabinet
• Phase: Single phase
• Inverter power: 11kW
• Battery bank: 5 x Pylontech US5000C
• Total nominal storage: 24kWh
• Total usable storage: 22.8kWh
• Battery chemistry: Lithium Iron Phosphate (LFP)
• Cabinet protection: IP65 waterproof enclosure
• Monitoring: Solar Assistant online platform
• Switching: Manual changeover switch included