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The RESU FLEX series - modular high-voltage battery for maximum adaptability
In the scalable high-voltage battery category, the LG Energy Solution RESU FLEX series offers a flexible and powerful solution for private and commercial PV systems. With a capacity of 8.6 to 34.4 kWh, a voltage range of 192 to 531.2 V and the option of wall or floor mounting, it adapts perfectly to individual energy requirements.
Thanks to its IP55 protection class, high charging and discharging capacity and broad inverter compatibility, the RESU FLEX enables efficient solar power storage - ideal for greater energy independence and optimized electricity costs.
The RESU FLEX series - modular high-voltage battery for maximum flexibility
The RESU FLEX series is a scalable and powerful high-voltage battery developed for private and commercial photovoltaic systems. With a modular design and an expandable capacity of up to 34.4 kWh, it offers a tailor-made storage solution for various energy needs.
Thanks to the wide voltage range of 192 V to 531.2 V and natural convection cooling, the RESU FLEX enables efficient and reliable energy storage, both for self-consumption and off-grid applications.
Why the RESU FLEX series?
✔ Flexibly scalable - storage capacity from 8.6 kWh to 17.2 kWh, expandable up to 34.4 kWh (max. 2 batteries in parallel)
✔ High voltage & power - Voltage from 192 V to 531.2 V, maximum charging/discharging power of 8.5 kW
✔ Space-saving design - Compact dimensions with wall or floor mounting
✔ Safe battery chemistry - Lithium-ion technology with integrated protection against over- and undervoltage, overcurrent and short circuit
✔ Reliability & Durability - Certified according to UL1973, IEC62619, IEC62477-1
✔ High compatibility - RS485 and CAN communication interfaces, integrated DC circuit breaker
✔ Robust design - IP55 protection class, suitable for indoor and protected outdoor installations
Technical highlights
✔ Capacity options: 8.6 kWh / 12.9 kWh / 17.2 kWh
✔ Expandability: Up to 34.4 kWh through parallel connection
✔ Voltage range: 192 V - 531.2 V
✔ Maximum charging/discharging power: 4.3 kW - 8.5 kW, peak power up to 11 kW for 3 seconds
✔ Mounting type: Wall or floor mounting
✔ Operating temperature: Charging: 10 °C to 50 °C / Discharging: -10 °C to 50 °C
✔ Protection class: IP55, suitable for various environments
✔ Dimensions: 665.2 x 665.2 x 148.4 mm
✔ Weight: 48.9 kg (battery module), 16.5 kg (protection unit)
✔ Expandability: Up to 34.4 kWh through parallel connection
✔ Voltage range: 192 V - 531.2 V
✔ Maximum charging/discharging power: 4.3 kW - 8.5 kW, peak power up to 11 kW for 3 seconds
✔ Mounting type: Wall or floor mounting
✔ Operating temperature: Charging: 10 °C to 50 °C / Discharging: -10 °C to 50 °C
✔ Protection class: IP55, suitable for various environments
✔ Dimensions: 665.2 x 665.2 x 148.4 mm
✔ Weight: 48.9 kg (battery module), 16.5 kg (protection unit)
Models in the RESU FLEX series
✔ FLEX 8.6 - 8.6 kWh usable capacity, max. power 4.3 kW
✔ FLEX 12.9 - 12.9 kWh usable capacity, max. power 6.5 kW
✔ FLEX 17.2 - 17.2 kWh usable capacity, max. power 8.5 kW
✔ FLEX 12.9 - 12.9 kWh usable capacity, max. power 6.5 kW
✔ FLEX 17.2 - 17.2 kWh usable capacity, max. power 8.5 kW
The RESU FLEX can be expanded to up to 34.4 kWh by connecting in parallel.
Versatile & future-proof energy storage
The LG RESU FLEX impresses with its modular design, high efficiency and durable construction. Thanks to its wide range of voltage and power options, it is suitable for a wide variety of applications, from self-consumption optimization to larger storage systems for commercial installations.
Discover more storage solutions from LG, including the LG RESU Prime series for high capacities and LG RESU series, which offers compact and expandable high-voltage batteries for reliable PV storage!
