Technical Specifications GROWATT ARK-2.5H-A2 battery:

Category

Specification

Battery Type

Lithium‑Iron Phosphate (LiFePO4), cobalt‑free

Nominal Energy Capacity

2.56 kWh

Usable Capacity

~2.3 kWh

Nominal Voltage

51.2 V

Operating Voltage Range

47.2 V – 56.8 V

Rated Current

25 A

Charge/Discharge Current

25 A / 0.5 C

Protection Rating

IP65 (dust and water resistant)

Operating Temperature Range

‑10 °C to 50 °C

Dimensions (W × D × H)

650 × 260 × 180 mm

Weight

~28–30 kg

Installation

Floor‑standing or wall‑mounted

Certifications

IEC62619, CE, UN38.3, CEC, RCM

Modular Use

Expandable in multi‑module systems

The Growatt ARK‑2.5H‑A2 battery is a compact, high-safety energy storage solution designed for use with MIN XH and MOD XH series inverters. Its modular and stackable design allows flexible system sizing, making it ideal for both residential and commercial applications. The integrated Battery Data Controller (BDC) monitors overall battery health and individual cell conditions, ensuring advanced protection, efficient cell balancing, and long-term performance. With IP65-rated protection, the battery operates reliably indoors or outdoors, while remote firmware updates and Growatt’s 10-year warranty provide peace of mind and dependable energy storage for a wide range of solar setups.

The Growatt energy storage kit should include:

Configuration for one inverter:

(Min. 2pcs for MIN XH or 3pcs for MOD XH) x ARK batteries ( min. 2 or 3 ×2.5kW)
1 x inverter + monitoring (Shine WiFi-X, Shine LAN-X or Shine GPRS-X)
1 x BDC (controller for batteries)
1 x Cables for splicing the BDC with the inverter – ARK H – Hight voltage
1 x battery stand – ARK H
1 x bi-directional meter (phasemater), comes in the box with the inverter

GENERAL INFORMATION – GROWATT ARK-2.5H-A2

Works with MIN XH and MOD XH series inverters
ARK’s 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
A minimum of 2 batteries + BDC controller for single-phase inverters or 3 batteries + BDC controller for three-phase inverters are required for commissioning.
ARK batteries are IP65 rated for extended trouble-free operation indoors and outdoors
The batteries have a compact housing (650*260*180mm) and weigh only 30kg
ARKs 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