Description
Meeting the demands of larger homes, this bundle pairs the Sol-Ark Limitless 18K hybrid inverter with two UZ Energy IG-16K-U outdoor LiFePO4 batteries. You get 18kW of continuous output, 28.8kW of usable solar input, and 32kWh of storage for extended backup.
Key Features
- 18kW Hybrid Inverter: Delivers 18kW of continuous power at 120/240 V, with 36kW of surge power for 10 seconds.
- 32kWh of Outdoor Storage: Two 16kWh LiFePO4 batteries rated IP65, with tier-one LFP cells and more than 8,000 cycles.
- High Solar Capacity: 3 MPPTs with 2 strings each handle up to 28.8kW of usable PV power, with up to 32.4kW STC rated PV input.
- Seamless Backup: 200A grid passthrough and a 5 ms transfer time keep loads running through outages, with a generator port rated up to 28.8kW.
- Built-In Battery Safety: Each battery includes a fire extinguisher, heating film, decompression valve, and an advanced BMS with automatic parallel configuration.
The inverter’s integrated protection includes arc fault detection, rapid shutdown, and a PV disconnect. Its IP65 and NEMA 3R enclosure suits indoor or outdoor mounting, and it reaches 97.6% maximum efficiency.
The batteries charge down to 14 °F, and mount on the floor or wall. They support CAN, RS485, and Wi-Fi communication, and up to 64 units can be paralleled.
Both components carry a 10-year warranty. Up to 12 inverters can be paralleled for larger systems, giving you room to scale as your energy needs grow.
Bundle Contents
| Component | Model | Quantity |
|---|---|---|
| Hybrid Inverter | Sol-Ark Limitless 18K (18K-2P) | 1 |
| Outdoor Battery | UZ Energy IG-16K-U, 16kWh LiFePO4 | 2 |
Technical Specification
| Item | Specification |
|---|---|
| Total Battery Capacity | 32 kWh (2 x 16 kWh) |
| Total Bundle Weight | About 754.4 lbs (inverter 137 lbs + 2 batteries at about 308.7 lbs each) |
| Sol-Ark Limitless 18K Inverter | |
| Rated Output Power | 18,000 W (120/240 V); 15,600 W (120/208 V) |
| Peak Surge Power (10 s) | 36,000 W (120/240 V); 31,200 W (120/208 V) |
| Max. STC Rated PV Power | 32,400 W |
| Max. Usable Combined MPPT PV Power | 28,800 W |
| MPPT Operating Voltage Range | 150 to 425 V |
| Max. PV Input Voltage | 500 V |
| MPPTs / Strings per MPPT | 3 / 2 |
| Max. PV Input Current | 36 A per MPPT |
| Grid Voltage | 120/240 V, 120/208 V |
| Grid Passthrough Current | 200 A |
| Backup Transfer Time | 5 ms |
| Battery Nominal Voltage | 48 V (43 to 59 V range) |
| Max. Battery Charge / Discharge Current | 350 A / 350 A |
| Max. Efficiency | 97.6% (97.0% CEC) |
| Enclosure Rating | IP65 / NEMA 3R |
| Ambient Temperature | -40 to 140 °F (derated above 113 °F) |
| Noise | Under 50 dB at 77 °F |
| Inverter Dimensions (H x W x D) | 34 x 19.4 x 12 in |
| Inverter Weight | 137 lbs |
| Certifications | UL 1741 3rd SB, UL 1699B, UL 1998, CSA C22.2 No. 107, IEEE 1547-2018, FCC Part 15 Class B |
UZ Energy IG-16K-U Battery (each) |
|
| Cell Type | LiFePO4 |
| Rated Voltage / Capacity | 51.2 V / 314 Ah |
| Rated Energy | 16 kWh |
| Working Voltage Range | 43.2 to 58.4 V |
| Max. Charge Current | 150 A (0.48C) |
| Max. Continuous Discharge Current | 200 A (0.64C) |
| Max. Charge / Discharge Power | 7.6 kW / 10 kW |
| Peak Discharge (1 min) | 210 A / 10.7 kW |
| Cycle Life | More than 8,000 cycles |
| Operating Temperature | Charge 14 to 131 °F; discharge 5 to 131 °F |
| Communication | CAN / RS485 / Wi-Fi |
| IP Rating | IP65 |
| Installation | Floor-standing or wall-mounted |
| Battery Dimensions (W x D x H) | 19.69 x 9.25 x 37.80 in |
| Battery Weight | About 308.7 lbs each |
| Certifications | UL 1973, UL 9540A, UN 38.3, FCC |
| Warranty | 10 years (inverter and battery) |
Specs & Info