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5kW Cabinet Energy Storage System with Built-In Inverter
- High-Capacity Storage – Available in 5kWh, 10kWh, 15kWh, and 20kWh configurations to suit various energy demands.
- Advanced MPPT Technology – Enhances solar charging efficiency, optimizing power input from photovoltaic sources.
- Long Cycle Life – Designed for 6000+ charge cycles, ensuring durability and cost-effectiveness.
- Pure Sine Wave Inverter – Provides stable and clean power output, ideal for sensitive electronics.
- Smart Battery Management System (BMS) – Intelligent control for safe operation, preventing overcharging and overheating.
Energy Storage System with 5kW Inverter for Backup & Off-Grid Power
This all-in-one Energy Storage cabinet delivers dependable backup power with a built-in 5kW inverter. Designed for home, business, and off-grid use, it integrates storage and conversion into a compact, durable unit. The system pairs with high-capacity LiFePO₄ batteries to offer safe, efficient, and long-lasting power when you need it most.
Whether you’re powering lights, tools, appliances, or sensitive electronics, this cabinet provides clean, steady energy. It helps reduce dependence on the grid while improving your energy reliability during blackouts or peak demand.
Compact Energy Storage with Inverter Built In
The integrated 5kW inverter converts stored DC power into usable AC output. This reduces setup time and lowers installation costs. It’s ideal for solar battery systems, home backup, mobile units, and remote site power.
The unit fits neatly into utility closets, garages, sheds, or workspaces where space is limited. It can be used indoors or outdoors (in a weather-protected setting) for flexible deployment.
Compatible with LiFePO₄ Batteries
This system supports 48V LiFePO₄ battery modules. These batteries last longer, charge faster, and are safer than traditional lead-acid types. Connect 100Ah or 200Ah batteries depending on your runtime needs and energy usage.

Wholesale and Custom Energy Storage Orders
National Battery Supply offers fast shipping, bulk pricing, and OEM branding for installers, contractors, and resellers. If you’re integrating battery backup into residential or commercial projects, this Energy Storage system is ready for immediate deployment.
Learn more about how energy storage systems work from the U.S. Department of Energy.
Looking for more options? Browse our full product line

What kind of batteries does this system support?
It works with 48V LiFePO₄ battery modules, typically 100Ah or 200Ah.
What kind of batteries does this system support?
Yes. This system features a built-in 5kW inverter for AC output.
Can this be used off-grid?
Yes. It’s ideal for off-grid cabins, solar power setups, and remote backup.
Do you offer wholesale or OEM pricing?
Yes. We support bulk orders, private labeling, and fast delivery across the U.S.
Related products
- Grid-Connected AC Parameters:
- Rated Power: 188 kW
- Rated Current: 211 A
- Rated Voltage: AC400V ± (20%~15%)
- Rated Grid Frequency: 50Hz/60Hz
- TDD: <3% (total harmonic distortion)
- Battery Cabinet Dimensions: 1800mm (L) x 2300mm (W) x 1200mm (H)
- Weight: 3000 kg
- Storage Temperature Range: -30°C to +60°C
- Altitude: Up to 6000 meters
- Nominal Capacity: 215 kWh
- System Efficiency: 85%
- Protection Rating: IP54 (dust and water-resistant)
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Dimensions: 1050mm x 1830mm x 800mm
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Operating Temperature Range: -30°C to 50°C
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System Efficiency: 95%
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Battery Type: Lithium-ion
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Maximum Output Power: 300W
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Maximum Input Current: 32A-32A
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PV Power: 19.5kW to 19.9kW
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MPPT Voltage Range: 320V-850V
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Maximum Input Voltage: 850V DC
- Input Battery Voltage Range:48V-58.4V
- Input Charge Voltage:58V Max
- Input Charge Current:100A
- Output Discharge Current:100A
- Output DoD:90%
- MC4 (Solar): 7000W Max (500V/14A)
- AC#1: 2000W Max (110V-120V@50Hz/60Hz)
- AC#2 (Grid): 5000W Max (110V-120V@50Hz/60Hz)
- AC#3 (EPS): 5000W Max (120V@60Hz) Automatic Switchover Time < 20ms
- AC#4: 2000W/ Max (120V@60Hz)
- AC#5 (30A): 3000W Max (120V@60Hz)
- AC#6 (50A): 5000W Max (120V60Hz)
- Integrated BMS and multiple safety protection designs, guaranty customers use safe
- Flexible installation: Wall mounted/ Floor mounted/ Stack/ Rack mounted. Optional bracket kits for different installation scenarios.
- Compact structure: 3U standard size (482*133.5*460mm)
- Long-lasting: cyle life ≥6000 cycles @90%DOD.15 years design life.
- High Safety: High safety LiFePO4 battery. Cells are UL9540A certified
- Parallel ability: up to 32pcs connected in parallel, scale from 5kWh to 160kWh
- Compatible with mainstream inverters
- Existing certification Cell: UL9540A, UL1642, UL2580, IEC62619, ROHS, UN38.3,
- Float charging the prolonged by our proprietary concision-resistant alloy
- High-purity electrolytes and special agents reduce water loss;
- impacts from earthquakes are reduced by compact seismic ABS jars and covers
- Delicate seal technologies protect the battery from electrolyte leakage and creepage
- The delicate construction of self-relief valves can avoid bulges and cracks
Recently Viewed Products
- Massive energy for all devices: with a capacity of 60,000 mAh (192 Wh)
- Charge multiple devices simultaneously
- Sustainable solar charging
- Compact and travel-friendly design
- Durable LiFePO4 Battery
- Ultra-reliable Lithium Iron Phosphate (LiFePO4) technology
- Integrated battery management System (BMS)
- Ultra-long cycle life
- Light weight & compact
- Water & dust resistant (IP56)
- Highly durable ABS enclosure
- Drop-in lead acid replacement
- Environment friendly
- Bluetooth App is optional
- 20KWh-120KWh
- A long cycle life
- High safety standard BMS software protection and
- Strong housing, exquisite looks, and easy installation.
- Battery Capacity: 57.72Wh lithium battery
- Output: 12V with a max current of 5A
- Charging Time: 3-4 hours with a 12V DC 6A adapter
- Backup Duration: Up to 10 hours for 12V 0.5A devices, 1-2 hours for 12V 2A devices
- Smart IC Control: Manages charging, discharging, and temperature for optimal performance
- Silent Cooling System: Uses a brushless motor fan for quiet operation
- Compact Design: L100×W100×T60mm, 490g weight

National Battery Supply is a reputable manufacturer specializing in custom battery solutions. With over 20 years of experience, we can manage all your power needs.
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