GROWATT APX Battery Set 20kWh for MOD XH BP inverter

Prices were last updated on February 1, 2026

Technical Specifications

Category	Specification
Product Type	High-Voltage (HV) Battery Storage System
Total Usable Capacity	20 kWh (4 × 5 kWh modules)
Battery Chemistry	Lithium-Iron Phosphate (LFP), cobalt-free
Included Components	4 × APX high-voltage batteries, BMS controller, high-voltage cables, battery base
Modular Design	Stackable battery modules for easy expansion
Protection Rating	IP65 (dust and water resistant)
Warranty	Up to 10 years
Installation	Floor-mounted, modular, indoor & outdoor
BMS Monitoring	SOC, cell voltage, temperature protection
Cell Voltage Balancing	Integrated for longer battery life
Compatible Inverters	Growatt MOD XH BP three-phase hybrid inverters

The GROWATT APX Battery Set 20kWh for MOD XH BP inverter is engineered as a complete, ready-to-deploy energy storage solution for three-phase solar systems. Its modular architecture simplifies system design and installation while allowing scalable capacity to meet future energy demands. Advanced battery management ensures stable operation by continuously supervising battery health at both system and cell level, providing enhanced protection and reliability during long-term use. The robust enclosure and environmental protection enable flexible placement in a wide range of installation environments, from indoor technical rooms to outdoor utility areas. Combined with intelligent firmware management and Growatt’s long-term warranty plan, this battery system delivers dependable performance, operational safety, and peace of mind for professional and end-users alike.

GROWATT APX Battery Set 20kWh for MOD XH BP inverter include:

Configuration for one MOD XH inverter:

4 x APX batteries 5 kWh
BMS (controller for batteries)
1 x Cables for splicing the BMS with the inverter – APX H – Hight voltage
1 x battery base – APX

GENERAL INFORMATION

Works with MOD XH BP 3-phase series inverters
APXs LFP (lithium-iron-phosphate) batteries are cobalt-free batteries and achieve excellent levels of safety and reliability
Easy installation thanks to modular, stackable design
Remote firmware update
Long life, 10-year warranty
One battery + BMS controller for 3-phase inverters are required for commissioning.
APX batteries are IP65 rated for extended trouble-free operation indoors and outdoors
The batteries have a compact housing (690/185/295mm) and weigh only 50kg for each one
APXs monitor not only the total state of the battery, but also the individual cells, and provide complete protection of the battery system
Balancing the voltage of the cells allowing the battery to last longer
Growatt waranty plan

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