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The ark high-voltage storage system from Growatt is flexible due to its modular concept and can be expanded as needed. A battery tower can be set up with a minimum of 2 to a maximum of 10 ark high-voltage batteries. For commissioning with a compatible inverter, a bms control unit and a connection cable set are included. For ground installation, the battery base is also available as an option.

The Growatt high voltage battery system includes:

Compatible inverters

Growatt min-xhGrowatt mod-xh
MIN 2500tl-xh hybrid inverter pv 2500w 1-phaseMOD 4ktl3-xh 4kW hybrid inverter 3-phase
MIN 3000tl-xh hybrid inverter pv 3000w 1-phaseMOD 5ktl3-xh 5kW hybrid inverter 3-phase
MIN 3600tl-xh hybrid inverter pv 3600w 1-phaseMOD 7ktl3-xh 7kW hybrid inverter 3-phase
MIN 4200tl-xh hybrid inverter pv 4200w 1-phaseMOD 9ktl3-xh 9kW hybrid inverter 3-phase
MIN 4600tl-xh hybrid inverter pv 4600w 1-phaseMOD 10ktl3-xh 10kW hybrid inverter 3-phase

ark 2.5h-a1 high voltage battery

Growatt ark 2.5h-a1 high voltage battery (mpn ark-2.5h-a1) is a LiFePO4 storage battery with high cycle stability and long lifetime. The modular, stackable design allows flexible application for different scenarios and is easy to install. The battery offers excellent performance under heavy load and is also suitable for outdoor installation with its ip65 protection. To avoid overvoltages in the system, the soft start is used.

About the ark 2.5h-a1 battery:

  • Modular, stackable battery concept
  • Cobalt-free lithium iron phosphate (LFP)
  • High cycle stability and long service life
  • Wall or floor installation possible
  • Soft start to protect the system from overvoltages
  • Automatic wake-up in case of undervoltage
  • Protection class ip65 for outdoor installation
  • Remote diagnostics and firmware update

Areas of application

  • For grid-connected as well as stand-alone photovoltaic systems
  • Emergency power supply
  • Uninterruptible power supplies (usv / UPS)

Softstart to protect the system

The soft start mechanism is a protective function used on the Growatt battery to protect the system from overvoltages. When the battery is started or turned on, the power supply is gradually increased to protect the system from damage that could be caused by a sudden voltage spike. This ensures smooth and safe operation of the battery system.

High cycle life

Growatt ark battery modules are an ideal storage solution for photovoltaic systems due to their extremely high cycle life and the use of LiFePo4 cells. Regardless of whether it is a grid-tied or off-grid system, Growatt storage offers numerous advantages over traditional lead-acid batteries and other lithium technologies.

Technical Data:

  • Battery type: cobalt-free lithium iron phosphate (LiFePo4)
  • Energy capacity: 2.56?kWh
  • Usable capacity: 2.3?kWh
  • Rated voltage: 51.2?V
  • Operating voltage range: 47.2-56.8?V
  • Charge/discharge current: 25?A/0.5?C
  • Protection class: ip65
  • Temperature range: -10~50° C
  • Dimension: 650 x 260 x 180 mm
  • Weight: approx. 28 kg
  • 10 years manufacturer warranty
  • Certificates: iec62619, ce, cec, rcm, UN38.3

bms control unit

The Growatt bdc 95045-a1 bms acts as a central monitoring and control unit within the ark high-voltage battery system and supports communication with Growatt min and mod xh inverters. It allows the connection of up to 10 battery modules with an individual capacity of 2.56 kWh. These modules can be connected in series to form a battery tower that has a total capacity of up to 25.64 kWh. Storage towers can also be connected together, requiring one bms per tower.

About the bdc 95045-a1 bms

  • Compatible with Growatt min-xh and mod-xh inverters
  • Modular, stackable battery design
  • Monitoring and control

bms control parameters

Control parameters include state of charge (soc), line voltage, current, cell voltage, cell temperature and PCBA temperature measurement. By precisely monitoring these parameters, the bms ensures optimal battery performance and longevity.

Flexible expansion

Growatt's ark battery system offers great flexibility through its expandable configuration options, which range from 2.56 kWh to 25.6 kWh. Installation and expansion of the system is simple and straightforward due to its modular design and use of cables. Another innovation of the ark system is that, unlike other battery systems, no battery cabinet is required. Only a battery base is required for a stable stand.

Technical data:

  • Protection class: ip65
  • Temperature range: -10~50° C
  • Dimension: 650 x 260 x 185 mm
  • Communication: CAN
  • Weight: 8 kg
  • 10 years manufacturer warranty

Connection cable set to inverter

The Growatt battery cable set is needed to connect Growatt ark2.5h-a1 batteries to min- or mod-xh series inverters.

  • 2x 2m power cable (plus/minus)
  • 2m communication cable
  • 2m ground wire

ark battery base

The Growatt ark battery base is suitable for ground installation of Growatt ark battery modules and provides a secure stand for the battery tower. The Growatt ark system is modular, meaning that multiple batteries can be combined, with the Growatt Base serving as the foundation. Up to 10 storage modules, as well as the associated bms, can be stacked on one base.

  • for base mounting of Growatt ark hv and xh batteries
  • one base per battery tower
  • Weight: 3kg
Growatt_ARK-XH_Speichersystem_IEC62040.pdf Download
Growatt_Batteries-Compatibility-List.pdf Download
Growatt_ARK-XH_Speichersystem_Quick Guide.pdf Download
Growatt_ARK-XH_Speichersystem_EMC.pdf Download
Growatt_ARK-XH_Speichersystem_Datenblatt.pdf Download
Growatt_ARK-XH_Speichersystem_IEC62477.pdf Download
Growatt_ARK-XH_Speichersystem_IEC62619.pdf Download
Growatt_ARK-XH_Speichersystem_User Manual.pdf Download
Battery Management System: ja
Battery monitoring: integrated
Battery series connection: yes, max 10 in a row
Battery type: LiFePO4
Manufacturer: Growatt
Operating temperature range: -10°C - +50°C
Product Type: LiFePO4 battery
Protection type: IP65
Rated battery voltage: 51,2 V
Warranty: 10 years manufacturer's warranty
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