Technical Specifications

Category

Specification

Product Type

High-Voltage (HV) Battery Storage System

Total Usable Capacity

15 kWh (3 × 5 kWh modules)

Battery Chemistry

LFP (Lithium-Iron-Phosphate)

Nominal Voltage

~385 V per module

Operating Voltage Range

330 V – 450 V

BMS (Battery Management System)

Included — monitors SOC, cell voltage & temperature

Max BMS Current

30 A (peak 34 A for 60 s)

Communication Interface

RS485 / CAN

Battery Module Dimensions

690 × 185 × 295 mm

Weight per Battery Module

~50 kg

Protection Rating

IP65 (dust and water resistant)

Warranty

Up to 10 years

Installation

Indoor & outdoor (floor mounted, stackable)

Inverter Compatibility

Growatt MID XH series three-phase hybrid inverters

The GROWATT APX Battery Set 15kWh for MID XH inverter is designed as a complete and reliable energy storage solution for three-phase solar systems. Thanks to its modular and stackable structure, the system allows flexible installation and future expansion while maintaining a compact footprint. The use of LFP battery technology ensures a high level of operational safety, thermal stability, and long-term reliability, making it suitable for demanding residential and commercial applications. The integrated Battery Management System provides advanced monitoring and protection by supervising both overall battery performance and individual cell conditions, while active cell balancing helps extend the service life of the system. With its robust IP65-rated enclosure, the battery set is well suited for both indoor and outdoor environments. Additional features such as remote firmware updates and Growatt’s long-term warranty plan further enhance system reliability and ease of maintenance, ensuring stable performance over many years of operation.

GENERAL INFORMATION GROWATT APX Battery Set 15kWh for MID XH inverter:

Works with MID XH 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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GROWATT APX Battery Set 15kWh for MID XH inverter

Technical Specifications

GROWATT APX Battery Set 15kWh include:

GENERAL INFORMATION GROWATT APX Battery Set 15kWh for MID XH inverter:

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