Home Collection ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter | 18KW 120/208Y Vac Output | 28.8KW PV Input | 360A Charge/Discharge Current
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ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter | 18KW 120/208Y Vac Output | 28.8KW PV Input | 360A Charge/Discharge Current

ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter | 18KW 120/208Y Vac Output | 28.8KW PV Input | 360A Charge/Discharge Current

$3,799.99
$3,799.99 $4,299.99
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SKU:

GW-L03LBKT18KW-1

[18,000W Three-Phase Pure Sine Wave Output] 120/208Vac (L1+L2+L3+N+PE), 50A rated, 2× peak power (36,000W for 10s). Built for large homes, ranches, and workshops with three-phase equipment.
[Dual MPPT 28.8kW Solar Input] 2×14.4kW PV arrays, 36A per channel, 600Vdc max. MPPT efficiency 99.9%. Compatible with high-power 500W+ modules.
[360A Battery Charging & Discharging] 48V system, 40-60Vdc range. Supports Li-ion (LiFePO4/Ternary), Lead-Acid (SLA/GEL/FLD), and User-Defined. BMS communication via RS485/CAN for 20+ battery brands.
[Parallel Up to 6 Units] 108kW System — Stackable for whole-home backup or light commercial use. Three-phase parallel with synchronized output.
[All-in-One Energy Management] Grid/Generator/PV triple-source charging, time-slot TOU scheduling, UPS zero-transfer, generator auto-start dry contact, SOLARMAN Smart WiFi monitoring.

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Extra $500 Off For Presale Order,expected to ship out on Sept 10th!

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Technical Specifications

18KT INVERTER

Inverter Rated Output Power

18,000W

Inverter Peak Output Power

2 times rated power, 10s

Max. AC Output Power

19800VA

Inverter Rated Output Voltage

120/208Vac (L1+L2+L3+N+PE)

Inverter Rated AC Output Current

50Acac

Inverter Bypass Overload Current

100Acac

Battery Voltage

48V

Battery Type

LiFePO₄ / Lead Acid

Battery Max. PV Charging Current

360A

Battery Max. AC Charging Current

360A

Charging Strategy for Li-ion Battery

Self-adaption to BMS

No. of MPPT Trackers

2

Max. PV Input Power

14,4kW+14,4kW

Max. PV Input Current

36A + 36A

Max. PV Input Voltage

600Vdc+600Vdc

MPPT Operating Voltage Range

120–550V

Parallel Capacity

1~6 units

Dimensions (W × H × D)

23.36"×33.40"×8.47"

Weight

118 lbs

Protection Degree

IP20, indoor use only

Included in the Box
1x ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter

1x ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter

User manual

ECO-WORTHY Liber 18KT Off-grid Three-phase Inverter Manual

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Frequently Asked Questions

Are Eco-Worthy batteries safe for home use?

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All Eco-Worthy Batteries Built with premium Grade A LiFePO4 cells, one of the safest lithium technologies available. Built-in BMS protection prevents overcharge, overheating, and short circuits—making it ideal for residential energy storage.

Will it work with my inverter/solar system?

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Yes. Our batteries are designed to be widely compatible with most 48V inverters and solar systems used in U.S. homes. For best performance, we recommend checking your inverter’s communication protocol or contacting our support team before purchase.

How much power do I actually need for my home?

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It depends on your usage: 5–10 kWh → essentials (fridge, lights, WiFi); 10–20 kWh → partial home backup; 20 kWh+ → whole-home coverage; Our systems are scalable, so you can start small and expand anytime.

Can I expand the system later?

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Absolutely. Eco-Worthy batteries support parallel expansion, allowing you to increase capacity as your energy needs grow—without replacing your existing system.

What kind of warranty and support do you offer?

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We provide up to a 10-year warranty on key battery models, along with U.S.-based support. Our team assists with installation guidance, troubleshooting, and system planning to ensure a smooth experience.