Growatt ARK-2.5L-A1 2.56 kWh low-voltage battery

About the ARK 2.5L-A2 battery:

• Modular, stackable battery concept
• Cobalt-free lithium iron phosphate (LFP)
• Wall or floor installation possible
• High cycle resistance and long service life
• Soft start to protect the system from overvoltages
• Remote diagnostics and firmware update
• IP65 rating for outdoor installation
• 10 years warranty

The ARK battery system

The modular concept makes the ARK system flexible and expandable if necessary. A battery tower can be constructed with at least two and up to ten storage modules. A connecting cable set is required to connect to the inverter. For ground installation, an additional battery base per tower is required. The ARK-LV memories are compatible with the single-phase SPH inverter series and the SPF3500 off-grid inverter.

Areas of application

• For grid-connected and self-sufficient photovoltaic systems
• Emergency power supply
• Uninterruptible power supplies (UPS)

Flexible Expand

Growatt's ARK battery system offers high flexibility through its expandable configuration options, ranging from 2.56 kWh to 25.6 kWh. The installation and extension of the system is simple and straightforward thanks to the modular design and the use of cables. Another innovation of the ARK system is that, unlike other battery systems, no battery cabinet is required. Only a battery socket is required for a stable stand.

Soft start 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. In this way, smooth and safe operation of the battery system is ensured.

Integrated BMS

The Growatt ARK low-voltage battery's Battery Management System (BMS) monitors a number of key parameters to ensure efficient and safe battery performance. It monitors the battery state of charge (SOC), mains voltage, current flow, cell voltage, and cell and PCBA temperatures. By precisely controlling these parameters, the BMS ensures optimal battery utilization, protects against potential damage, and extends battery life.

High cycle life

The 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. Whether it is a grid-based or an island system, growatt storage offers numerous advantages compared to conventional lead-acid batteries and other lithium technologies.

Technical data:

• Battery type: Cobalt-free lithium iron phosphate (LiFePo4)
• Energy capacity: 2.56 kWh/50Ah
• Usable capacity: 2.3 kWh/45Ah
• Rated voltage: 51.2 V
• Operating voltage range: 47.2-56.8 V
• Charging/discharging current: 25A
• Protection class: IP65
• Operating temperature range: -10°C - +50°C
• Dimensions: 650 x 260 x 185 mm
• Weight: 28 kg
• Certificates: IEC62619, CE, CEC, RCM, UN38.3

Scope of delivery:

1x Growatt ARK 2.5L-A2 2.56 kWh low-voltage battery
1x battery connection set