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Battery for Inverter - LFP

PV10710067 Growatt APX 10kWh High-Voltage Battery with BMS + Basic Set

10 kWh High-voltage storage system consisting of two APX modules (5 kWh each), complete with BMS and base unit. The standard size for a single-family home that wants to carry over the day’s surplus into the night.

€2,370.00
0 % VAT under § 12 Abs. 3 UStG
PV10710204 Solplanet Ai-HB 075A 10.24 kWh, Storage Set

The Ai-HB G2 Pro series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS, IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), a charge/discharge current of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€3,699.00
0 % VAT under § 12 Abs. 3 UStG
PV10710068 Growatt APX 15kWh High-Voltage Battery with BMS + Basic Set

15 kWh consisting of three APX modules (5 kWh each), including BMS and base unit. For households with a heat pump or wallbox where evening consumption is significantly above average.

€3,350.00
0 % VAT under § 12 Abs. 3 UStG
PV10710208 Solplanet Ai-HB 075A 20.48 kWh Storage Set

The Ai-HB G2 Pro Series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS, IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), a charge/discharge current of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€6,299.00
0 % VAT under § 12 Abs. 3 UStG
PV10710069 Growatt APX 20kWh High-Voltage Storage System with BMS + Basic Set

20 kWh High-voltage storage system consisting of four APX modules, pre-assembled with BMS and base. Designed for households that cover their heating and mobility needs with their own electricity.

€4,350.00
0 % VAT under § 12 Abs. 3 UStG
PV10710077 Growatt APX 30kWh High-Voltage Solar Storage Kit

30 kWh High-voltage storage system consisting of six APX modules, complete with BMS and base unit. The largest configuration in the series—for commercial and residential applications with a high base load.

€6,319.00
0 % VAT under § 12 Abs. 3 UStG
PV10710206 Solplanet Ai-HB 075A 15.36 kWh-Storage Set

The Ai-HB G2 Pro Series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS,IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), a charge/discharge current of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€3,880.00
0 % VAT under § 12 Abs. 3 UStG
PV10710066 Growatt APX 5kWh High-Voltage Storage Kit with BMS + Base

5 kWh High-voltage storage as an entry-level solution: an APX module, the battery BMS, and the base unit are coordinated and included in full. The storage capacity grows as additional modules are added.

€1,345.00
0 % VAT under § 12 Abs. 3 UStG
PV10710191 Solplanet Ai-HB G2 Pro 075A 7.68 kWh Storage Kit

The Ai-HB G2 Pro series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS, IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), a charge/discharge current of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€2,199.00
0 % VAT under § 12 Abs. 3 UStG
PV10710205 Solplanet Ai-HB 075A 12.8 kWh-Storage Set

The Ai-HB G2 Pro series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS, IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), a charge/discharge current of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€4,299.00
0 % VAT under § 12 Abs. 3 UStG
PV10710551 Fronius Reserva 9.5 (3x 3.15 Battery Module) Set

9.5 kWh Storage capacity from three Reserva modules, each with 3.15 kWh s, including BMS and base unit. The mid-range configuration for households for whom the basic storage system is too small and the full configuration is too large.

€5,805.00
0 % VAT under § 12 Abs. 3 UStG
PV10710207 Solplanet Ai-HB 075A 17.92 kWh-Storage Set

The Ai-HB G2 Pro series is a state-of-the-art, modular high-voltage battery with capacities ranging from 7.68 kWh to 20.48 kWh per tower. It can be expanded to up to 81.92 kWh through up to four parallel configurations. With a robust BMS, IP65 protection, VDE certifications, a long service life (up to 8,000 cycles), charging/discharging currents of up to 30 A, and an efficiency of ≥ 95%, it is ideal for demanding, scalable energy storage solutions. Installation is simple and compatible with Solplanet hybrid inverters; control and monitoring are conveniently handled via an app.

€5,990.00
0 % VAT under § 12 Abs. 3 UStG

Here you will find battery storage systems for rooftop installations with hybrid inverters: individual battery modules, the corresponding BMS units and ready-made storage sets comprising both. The range includes systems from Growatt, Solplanet, Fronius, EcoFlow and Trina with capacities ranging from 2.56 to 5.12 kWh per module; as ready-made sets, the range extends from 5 to 30 kWh.

An overview of the storage systems

According to the data sheet, all modules use lithium iron phosphate (LFP). They are stacked to form a tower until the system’s upper limit is reached.

System	Voltage	Capacity per module	Upper limit as per the data sheet	Charge cycles	Warranty
Growatt APX	High voltage	5,kWh	30,kWh	6,000	10 years
Growatt ARK	High-voltage	2.56 kWh	25.6 kWh	6,000	10 years
Growatt AXE	Low voltage	5 kWh	50 kWh	6,000	10 years
Solplanet Ai-HB G2 and G2 Pro	High-voltage	2.56 kWh	20.48 kWh	6,000 or 8,000	10 years
Solplanet Ai-LB	Low voltage	5.12 kWh	10.24 or 20.48 kWh	6,000	10 years
Fronius Reserva	High voltage	3.15 kWh	15.8 kWh	6,000	10 years
EcoFlow Ocean 2	High Voltage	5.02 kWh	30.12 kWh	10,000	15 years
Trina TRBM	High voltage	2.56 kWh	20.48 kWh	6,000	10 years

What a battery pack consists of

A high-voltage storage system consists of battery modules and a BMS unit. The Battery Management System (BMS) monitors the cells and charge status and maintains the connection to the inverter. For Growatt APX, Solplanet Ai-HB G2 Pro and Fronius Reserva, the base on which the tower stands is integrated into the BMS unit. For Growatt ARK and Trina, the BMS unit is a separate component. The Growatt AXE is a low-voltage module operating at 51.2 V and incorporates its own BMS within the module.

Ready-made kits are available for three systems: Growatt APX with one to six modules (5 to 30 kWh), Solplanet Ai-HB G2 Pro with three to eight modules (7.68 to 20.48 kWh) and Fronius Reserva with two to five modules (6.3 to 15.8 kWh), each with a BMS unit including a base. A smaller set can be expanded later with modules from the same series up to the upper limit shown in the table. The EcoFlow Ocean 2 module is available individually here; the matching battery base can be found in the battery storage accessories section.

Which storage system is compatible with which inverter

Whether high-voltage or low-voltage depends on the inverter. The decisive factor is its storage list: only the storage systems listed there are approved. For some devices in the range, the manufacturers’ lists specify: Growatt MOD HU accepts only APX, Growatt MOD XH accepts ARK, APX, AXE and ARK LV, Growatt MIN XH accepts ARK and APX. The Solplanet ASW H-T2 and H-T3 work exclusively with Ai-HB. For all other hybrid inverters, the respective data sheet applies. If you need both an inverter and a storage system, you will find matched sets under Storage-Inverter Sets.

The installation location is determined by the protection rating and temperature range. Most modules are rated to IP65 or IP66; Growatt, APX and ARK operate from −10 to +50 °C according to their data sheets. The Growatt AXE has IP20 and an operating range of 0 to +50 °C; it is designed for installation in a dry indoor environment. Plug-and-play storage units for balcony power plants can be found under Storage for Balcony Power Plants, whilst a comparison of all models is available under Energy Storage.

For photovoltaic systems and their essential components, no value added tax is charged where the conditions of Section 12 (3) of the German VAT Act (UStG) are met. You state during the ordering process whether they apply to you.

Frequently asked questions about PV storage systems for inverters

What is the difference between high-voltage and low-voltage storage systems?

With high-voltage storage systems, the voltage of the stack increases with each module. Low-voltage modules such as Growatt, AXE and Solplanet Ai-LB operate at 51.2 V. The inverter determines which type is suitable.

Do I need a BMS unit for the battery modules?

For the high-voltage systems, the answer is yes – one per tower. It is included in the ready-made kits. The Growatt AXE has its BMS built into the module.

How many modules can be stacked?

Up to the upper limit specified in the data sheet: for Growatt APX, six modules totalling 30 kWh; for Solplanet Ai-HB G2 Pro, eight modules totalling 20.48 kWh; and for Fronius Reserva, five modules totalling 15.8 kWh.