Growatt ARK XH
High-voltage modular LFP stack for Growatt MIN-XH systems.
Capacity
5.12–17.92 kWh (modular)
Power
5 kW
Warranty
10 years
Installed price
£3,200–£6,500
Overview
The Growatt ARK XH is a high-voltage modular battery built from 2.56 kWh ARK 2.5H-A1 blocks (cobalt-free LFP) that stack 2 to 7 in series for 5.12 to 17.92 kWh (4.6–16.1 kWh usable). It pairs with Growatt's MIN-XH hybrid inverters and offers some of the keenest price-per-kWh on the UK market, with a 6,000-cycle life, IP65 rating and wall or floor mounting. It is a strong-value system that can start small and grow.
Pros
- Among the lowest upfront costs per kWh
- Plug-together 2.56 kWh modules, 2 to 7 in series
- 6,000-cycle life, 10-year warranty
- IP65, wall or floor; widely stocked by UK installers
Worth knowing
- Needs a matching Growatt MIN-XH hybrid inverter
- Mid-range power and app experience versus premium brands
Best for
Value-focused buyers on a Growatt MIN-XH hybrid inverter
Suits the Trim your bills and Cover your peak and Export & earn tiers in our battery finder.
Model comparison
| Specification | ARK 5.1XH | ARK 10.2XH | ARK 17.9XH |
|---|---|---|---|
| Modules | 2 | 4 | 7 |
| Nominal energy | 5.12 kWh | 10.24 kWh | 17.92 kWh |
| Usable energy | 4.6 kWh | 9.21 kWh | 16.12 kWh |
| Weight | 71 kg | 127 kg | 211 kg |
Technical specifications
Electrical
- Battery module
- ARK 2.5H-A1 (2.56 kWh, 51.2 V, 28 kg)
- Modules in series
- 2–7
- Nominal energy
- 5.12–17.92 kWh
- Usable energy
- 4.6–16.12 kWh
- Nominal voltage
- 360 V
- Operating voltage
- 360–550 V
- Chemistry
- Cobalt-free LFP
- Cycle life
- 6,000
Operating conditions & general
- Ingress protection
- IP65
- Installation
- Wall-mounted or floor
- Operating temperature
- −10 to 50 °C
- Relative humidity
- 5–95%
- Cooling
- Natural
- Communication
- CAN / RS485
- Compatible inverters
- Growatt MIN-XH series
- Warranty
- 10 years
Certification
- Safety
- IEC 62619 (cell & pack)
- Transport
- UN 38.3
- Other
- CE / CEC / RCM
Downloads
Compare with other batteries
Compare these side by sideWant quotes for the Growatt ARK XH?
We'll match you with up to 3 vetted, MCS-certified local installers who fit this battery. No cold calls, no obligation.
Get my free quotesFree · No obligation · Vetted, MCS-certified installers