Lion Energy Sanctuary 2 – Home Energy Storage System
The Lion Energy Sanctuary 2 is a powerful, fully automated home energy storage system designed to keep your home running during power outages. Built with advanced LiFePO₄ battery technology and a hybrid grid-support inverter, it delivers reliable, quiet, and maintenance-free backup power.
When the grid goes down, the system instantly switches to battery power — keeping your lights, refrigerator, furnace, Wi-Fi, and essential appliances running without noise, fuel, or manual intervention.
Designed for indoor installation, the Sanctuary 2 is ideal for whole-home or essential-load backup and can be expanded as your energy needs grow.
Key Features
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Automatic Backup Power
Instant seamless transition to battery power during outages — no fuel, no noise, no manual transfer switch required.
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Expandable Energy Capacity
14.3kWh (1 battery)
28.6kWh (2 batteries)
42.9kWh (3 batteries)
Expandable up to 43kWh total capacity per inverter.
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Powerful 8kW Output
8kW nominal output power
8.8kW max apparent power
120V / 240V split-phase output
Supports essential circuits or larger home loads.
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Solar & Generator Compatible
Supports solar PV input (up to 500V)
Compatible with AC-coupled solar systems
Generator compatible (single source input)
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High-Efficiency Performance
97.8% max inverter efficiency
89% round-trip system efficiency
100A grid pass-through capability
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Safe & Long-Lasting LiFePO₄ Batteries
14.3kWh Lithium Iron Phosphate modules
Long cycle life and stable performance
Advanced Battery Management System (BMS)
UL certified for safety
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Smart Monitoring
Monitor performance, track usage, and manage settings via Lion Energy mobile and desktop app.
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Indoor-Rated Design
Type 3R, IP65 inverter rating
Designed for shaded indoor installations
Silent operation with no emissions
System Configurations
- Sanctuary ESS 12-14.3 – 400 lbs
- Sanctuary ESS 12-28.6 – 690 lbs
- Sanctuary ESS 12-42.9 – 980 lbs
- Single Cycle Round Trip Efficiency (SCRTE): 89%
- Installation: Install in shaded locations. Do NOT install in direct sunlight.
Major System Components
- Lion Hybrid Inverter – 12kW Grid Support Interactive Inverter
- Lion LFP Battery – 14.3kWh
PV Input
- Max PV Input Power: 12kW
- MPPT Input Voltage Range: 120–500V
- Max Input Current per MPPT: 14A × 4
- Max Short Circuit Current per MPPT: 22A
- AC Solar Max: 8kW
AC Output (On-Grid)
- Nominal Output Power: 8kW
- Max Apparent Power Output: 8.8kW
- Nominal AC Output Current: 33.3A
- Max AC Output Current: 36.7A
- Output Voltage Range: 120V / 240V Split Phase
- Grid Frequency: 60Hz
- Max Grid Passthrough: 100A
- Output THDI: < 3%
- Maximum Output Fault Current:
- 71.5A (1 Cycle)
- 72.0A (3 Cycles)
- 72.4A (5 Cycles)
AC Output (EPS / Backup)
- Nominal Output Power: 8kW
- Power Factor Range: -0.8 to +0.8
- EPS Voltage Range: 110–120V / 220–240V Split Phase
- EPS Frequency: 60Hz
- Output THDU: < 2%
Battery Interface (Inverter Side)
- Battery Voltage Range: 40V–60V
- Max Charging Current: 190A
- Max Discharging Current: 190A
GEN / AC-Coupled PV Connection
- Terminals: L1, L2, N, PE (Split-Phase 120/240V)
- Source: Single source only — generator or AC-coupled solar
- Max Apparent Power: 8kW per inverter
- Auto-Start: Supported
General Inverter Data
- Humidity: 0–95%
- Ingress Protection: Type 3R, IP65
- Max Efficiency: 97.8%
- PV DC AFCI: Type 1
- PVRSS: Tigo RSS Transmitters (RS2)
- Weight: 110 lbs
- Dimensions (H × W × D): 33.6” × 18.50” × 10.08”
- Compliance: UL9540, UL1741:2021, UL1741 SB:2021, UL1741 SA:2018, UL1699B:2018, IEEE 1547:2018, IEEE 1547a:2020, IEEE 1547.1:2020, CPUC Rule21:2017, FCC 15 Class-B
Lion LFP Battery – 14.3kWh
- Battery Type: Lithium Iron Phosphate
- Voltage Range: 40–58.4VDC
- Rated Voltage: 51.2VDC
- Capacity: 14.3kWh
- Usable Capacity: 90%
- SCCR (Isc Rating): 2040A / 7ms
- Parallelable Capacity: 43kWh Max
- Max Parallelable Overcurrent Protective Device: 240A
- Max Quantity in Parallel: 3
- Charging Temperature Range: 32ºF–131ºF / 150A
- Discharging Temperature Range: -4ºF–131ºF / 160A
- Derate Range: Below 50°F, Above 104°F
- Weight: 290 lbs
- Dimensions (H × W × D): 44.4” × 18.50” × 9.75”
- Compliance: UL1973, UL9540, UL9540A
Key Specs
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Usable Capacity:
14.3kWh
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Continuous Output:
12kW
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Chemistry:
LiFePO
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Warranty:
10 years
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