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Battery energy storage systems

IGLU Kadlu battery storage systems with CATL LiFePO4 cells store surplus solar power or low-cost nighttime electricity and keep your home powered during outages. Up to a 10-year warranty.

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IGLU Kadlu battery storage series

IGLU Kadlu HV >

High voltage | 10–30 kWh

Home battery storage with CATL LiFePO4 cells, expandable up to 50 kWh.

IGLU Kadlu LV >

Low voltage | 10–30 kWh

IP65-rated battery storage for indoor or outdoor installation, with up to 5 systems connectable.

IGLU Kadlu Max >

For businesses | 30–300 kWh

Industrial battery storage for peak shaving and backup power, rated for 8,000 cycles.

Why choose IGLU Kadlu

Solar or grid power

Store surplus solar power or buy electricity when it is cheapest, then use it when you need it.

Lower electricity bills

Smart energy flow management reduces electricity costs day and night.

Backup power

During a power outage, your home is automatically powered by the battery.

Capacity from 10 to 50 kWh

Start with 10 kWh and expand the system as needed.

CATL LiFePO4 cells

Safer, longer-lasting technology than conventional lithium-ion (NMC) batteries.

Up to 10 years of warranty coverage

Kadlu LV – a 5-year product warranty and a 10-year performance warranty; an advanced battery management system (BMS).

Suitable for outdoor installation

With its IP65 rating, Kadlu LV can also be installed outdoors. It can discharge at temperatures from –20 to +55 °C and charge from 0 to +45 °C.

Compatible with existing equipment

Available as a standalone battery storage unit or a complete system with an IGLU Nanuk SE inverter.

Lithuanian manufacturer

Fast parts supply and technical support in Lithuania.

How does a battery storage system work?

The system stores surplus solar energy or electricity from the grid when prices are lowest, then supplies it to your home when electricity is expensive or in short supply. During a grid power outage, the system automatically switches to battery power, keeping your lights and appliances running without interruption.

All in one app

The IGLU Home Next app brings your entire home energy system into one place — from heating schedules to energy insights. Make changes easily and intuitively with a few taps.

Smart comfort control

IGLU Home Next – a home management app that lets you monitor, adjust and optimise all your IGLU devices in one place – from heating schedules to energy consumption analysis. Convenient, intuitive and designed for your everyday comfort.

Government support for energy storage systems

Households can benefit from government support for battery storage systems. Application dates, budgets and requirements change, so it is worth checking the current terms before purchasing equipment. Learn more about support →

FAQ

The capacity depends on your electricity consumption, the size of your solar power system and how long you want backup power to last. IGLU Kadlu HV and LV are available in capacities from 10 to 30 kWh, and the system can be expanded to 50 kWh. The battery storage calculator can help you choose.

HV is a high-voltage system, while LV is a low-voltage system. Both use CATL LiFePO4 cells and come with a warranty of up to 10 years (Kadlu LV has a 5-year product warranty and a 10-year performance warranty). We select the right system based on your inverter and home equipment—usually, the deciding factor is the inverter you already have or plan to install.

Yes. If the grid power goes out, the system automatically switches to battery power, keeping your household appliances running without interruption.

Yes. You can purchase just the battery storage unit or a complete system with the IGLU Nanuk SE hybrid inverter, which connects your solar power system, battery and the grid.

Yes. Lithium iron phosphate (LFP) technology offers greater thermal stability and a longer service life than conventional lithium-ion (NMC) batteries.

The IGLU Kadlu LV has an IP65 protection rating, making it suitable for both indoor and outdoor installation. It can discharge at temperatures from –20 to +55 °C and charge at temperatures from 0 to +45 °C.

Households can apply for government funding for battery storage systems, but application dates and eligibility criteria change. For the latest information, visit the funding page or contact an IGLU consultant.

For maximum efficiency – the full IGLU ecosystem​

Alongside energy storage systems (batteries), you can also purchase smart ⟦MTE_XX_N⟧. IGLU® Nanuk SE hybrid invertersThis inverter is the main “brain” of the entire system, ensuring smooth cooperation between the solar power plant, the battery storage, and the electrical grid. With ⟦MTE_XX_N⟧ IGLU® Nanuk SE you will not only manage energy flows efficiently, but also use an intelligent EMS system that automatically charges the batteries during the cheapest exchange hours.

IGLU Nanuk SE hybrid inverters – smart energy control

Hybrid inverter | efficiency up to 98.4%

Connects your solar power system, battery storage and the grid; switches to backup power in less than 10 ms during a power outage.

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