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Description
Lion Energy Sanctuary 3 Energy Storage System (AC ESS)The Sanctuary 3 Energy Storage System is a powerful, quiet, and fully automated whole home backup solution designed for modern, high demand households. With an 18kW grid interactive inverter and advanced LiFePO battery technology, it delivers seamless power during outages without fuel, noise, or manual switching. Built to scale, Sanctuary 3 grows with your energy needs, offering long runtime, high output, and intelligent energy management. Features
The Sanctuary 3 Energy Storage System is a powerful, quiet, and fully automated whole-home backup solution designed for modern, high-demand households. With an 18kW grid-interactive inverter and advanced LiFePO₄ battery technology, it delivers seamless power during outages without fuel, noise, or manual switching. Built to scale, Sanctuary 3 grows with your energy needs, offering long runtime, high output, and intelligent energy management.
Features
- Whole-home backup power with instant automatic switchover
- Silent operation with no fuel or emissions
- High-output 18kW split-phase inverter
- Scalable inverter and battery expansion
- Supports HVAC, large appliances, and critical loads
- Advanced LiFePO₄ battery technology
- Grid-interactive with generator and AC-coupled solar support
- Designed for indoor or outdoor shaded installation
- Low maintenance, long service life
Specifications
System
- Max Parallelable Inverters: 4
- Max Parallelable Batteries: 15
- Max Parallelable Output Power: 48kW
- Max System Capacity: 215.6kWh
- Max System Weight: 4,225 lbs
- Max Parallelable Circuit Protective Device: 240A
- Usable Capacity: 80%
- Single Cycle Round Trip Efficiency (SCRTE): 89%
- Battery State of Health at End of Warranty: 70%
- Humidity Rating: 0–95%
- Altitude Rating: 0–4,000m, derating above 2,000m
- Ingress Protection: NEMA 3R, IP65
- Max Internal Fault Current Rating: 1,800A
Inverter – Sanctuary 3 (18kW Grid-Interactive)
- Rated Power (On-Grid): 18kW
- Max Apparent Power: 19.8kVA
- Nominal AC Output Current: 75A
- Max AC Output Current: 82.5A
- Output Voltage: 120 / 240V split-phase
- Grid Frequency: 60Hz
- Max Grid Pass-Through: 200A
- Off-Grid Output Power: 12kW
- Power Factor Range: 0.8–1
- Output THD: <2%
- Maximum Output Fault Current: 71.3A (1 cycle), 724A (5 cycles)
- PV Input Power: 18kW
- MPPT Voltage Range: 120–430V
- Max PV Input Voltage: 600V
- Max Short Circuit Current per MPPT: 22A
- Battery Voltage Range: 40–58.4V
- Max Charging Current: 250A
- Max Discharging Current: 260A
- Max Efficiency: 96.5%
- Rapid Shutdown: Tigo RSS Transmitter
- Arc Fault Protection: AFCI, PV DC Arc
- Dimensions: 51.5" × 19.5" × 10.43"
- Weight: 184 lbs
Battery – Sanctuary 3 (14.3kWh)
- Battery Type: Lithium Iron Phosphate (LiFePO₄)
- Rated Voltage: 51.2VDC
- Voltage Range: 40–58.4VDC
- Capacity: 14.3kWh
- Operating Temperature (Charge): 32°F to 113°F
- Operating Temperature (Discharge): -4°F to 140°F
- Derating: Below 50°F, Above 104°F
- Dimensions: 44.91" × 18.50" × 10.43"
- Weight: 290 lbs
Certifications & Compliance
- ESS System: UL 9540
- Inverter: UL 1741, UL 1741 SB, IEEE 1547-2018, IEEE 1547.1-2020, FCC Part 15 Class B, UL 1699B
- Battery: UL 1973, UL 9540A
Other Details
- Supports generator or AC-coupled solar connection, single source only
- Auto-start generator functionality supported
- Install in shaded, well-ventilated locations only
- High-voltage system, electric shock risk
- Capacitors retain hazardous energy, do not touch
- Read all instructions before installation, operation, or maintenance
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Great value, perfect for our infant room!
Color: Black, Size: Standard - 4 Panel
Great product, sturdy design and easy to build! It is a fairly light weight item, which aids in the maneuverability of the divider. The color was as described and is dark enough to block the light from our sleeping infants! I do love that you are able to see through the slats and see the child sleeping- if you are looking for something with MORE privacy, this is not it. It has great coverage area and is dark and a wonderful value for the price, however, you are able to see through the areas where each panel connects!
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Reviewed in the United States on August 18, 2025
★★★★★ 1
Don’t waste your money or time!
Color: White, Size: Standard - 4 Panel
Don’t waste your money. The instructions make no sense and the metal poles are either sized wrong for the product or screw holes are incorrectly placed, but no two poles matched in size and placement making it impossible to put this together without the panels being warped. No matter how I tried to switch the poles to see if I had them wrong, they always turned out warped and incorrectly fit. I finally gave up and threw everything out - I wasted $50 on this junk and because I didn’t try to put it together immediately after I bought it, it is way too late for a refund. Lesson learned!
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Reviewed in the United States on October 1, 2025
★★★★★ 3
Sturdiness
Color: Black, Size: Standard - 4 Panel
Not so sturdy. It worked well for its intended job, but, it has to be secured to the floor for long term use.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Hide my hot water heater
Color: Grey, Size: Standard - 4 Panel
I used the divider to hide my hot water heater. It's perfect and looks great
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Reviewed in the United States on April 21, 2026
★★★★★ 4
Wobbly but Usable
Color: Grey, Size: Standard - 4 Panel
A bit wobbly, but good enough for the price when you need a solid background for remote work calls.
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Reviewed in the United States on May 6, 2026