Growatt ARK Battery Kit 22.5kWh for SPH

Prices were last updated on February 1, 2026

Technical specification

Feature	Description
Product Name	Growatt ARK Battery Kit 22.5kWh for SPH
Manufacturer	Growatt
Product Type	High-voltage lithium battery storage kit
Total Energy Capacity	22.5 kWh
Battery Modules	9 × ARK battery modules (2.5 kWh each)
Battery Chemistry	Lithium Iron Phosphate (LiFePO₄), cobalt-free
System Design	Modular, stackable high-voltage battery system
Included Components	9 battery modules, 1 BMS unit, HV connection cables, battery base
Battery Management	Central BMS for monitoring, balancing, and protection
Compatibility	Designed for Growatt SPH three-phase hybrid inverters
Installation Type	Indoor installation with dedicated battery base
Safety Features	Cell monitoring, voltage balancing, overcharge, over-discharge, and thermal protection
Scalability	Expandable within the ARK battery system limits
Application	Residential and commercial solar energy stora

Works with 3-phase SPH inverters
ARK LFP (lithium iron phosphate) batteries are cobalt-free and provide excellent safety and reliability.
Easy installation thanks to modular, stackable design
Remote firmware update
Long life, 10-year warranty
Requires 9 batteries + BMS controller for 3-phase inverters to start.
ARK batteries have IP65 protection, which ensures their trouble-free operation both indoors and outdoors.
The batteries have a compact housing (650*260*180 mm) and weigh only 30 kg each.
ARK monitors not only the overall condition of the battery, but also the individual cells and provides full protection of the battery system.
Cell voltage balancing allows for a longer battery life.
Growatt Warranty Plan
The company is responsible for the safety of battery shipments:

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