GROWATT APX Battery Set 15kWh for MID XH inverter

Name: GROWATT APX Battery Set 15kWh for MID XH inverter | Best Price (March 2026)
Rating: 5.00 (1 reviews)

Prices were last updated on March 29, 2026

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

Configuration for one 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

5/5 - (1 vote)

Rated 5 out of 5

Jessica Palmer – February 2, 2026

Has anyone installed the GROWATT APX Battery Set 15kWh with the MID XH inverter? How well does it handle daily cycling?

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