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51.2V Lithium Battery – 100Ah 5kWh Energy Storage System for Solar and Off-Grid Use
51.2V100Ah 5KWh Features
• 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
Power Your System with a 51.2V Lithium Battery
The 51.2V lithium battery provides steady, long-lasting energy for solar storage, off-grid setups, and backup systems. With 100Ah capacity and 5kWh output, it’s ideal for homes, cabins, and remote power needs.
This battery uses LiFePO₄ chemistry for greater safety and longer life. It lasts over 6,000 cycles at 80% depth of discharge. It’s lighter than lead-acid batteries and doesn’t require maintenance.
You can install this battery with most 48V solar inverters and charge controllers. Use it for both home and commercial systems.
51.2V Lithium Battery – Features and Specs
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Voltage: 51.2V (nominal)
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Capacity: 100Ah
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Energy Storage: 5kWh
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Chemistry: LiFePO₄ (Lithium Iron Phosphate)
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Life Cycle: 6,000+ cycles at 80% DoD
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BMS: Built-in Battery Management System
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Mounting: Rack or stackable configuration
- Ideal For: Solar, off-grid, telecom, UPS, and EV backup

Best Uses: Off-Grid, Solar, and Backup
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Residential and commercial solar battery banks
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Off-grid cabins and mobile power setups
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Backup power for internet, lighting, and appliances
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Energy storage for hybrid and microgrid systems
Why Choose This Battery?
This 51.2V lithium battery gives you safe, long-lasting power. It’s compact, quiet, and easy to install. Use it indoors or outdoors with solar panels, inverters, or hybrid systems. You can also expand your system later by connecting more units in parallel.
Learn more about LiFePO₄ technology on Battery University
In Stock Now – Fast Shipping Available
This 51.2V lithium battery is a smart choice for solar energy storage and backup power. Order today for fast delivery and expert support.
Want more options? Browse our full product line
How long will this battery last?
It lasts over 6,000 cycles, which is about 10 years under normal use.
How long will this battery last?
Yes. It’s fully compatible with most 48V inverters and charge controllers.
Is it safe for indoor installation?
Absolutely. LiFePO₄ is thermally stable, non-toxic, and safe for indoor use.
Related products
- Battery: LiFePO4v
- Capacity: 345Wh
- 2*AC output: 500W MAX (90V 115v 50/60 Hz)
- 1*DC output: 12V120W
- 1*Cigarette Lighter output: 12V/10A,120W Max
- 3*USB-A(QC3.0) output: 5-12V,18W Max
- 1*USB-C(PD) output: 5-12V,22.5W Max
- 1*Wireless charging output: 10W Max
- 1*LED output: 5W
- 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
- Battery:LiFePO4
- Capacity:2048Wh
- Output power:2600W
- Output:USB*4;Type C*2;AC*4;DC*2
- cigarette lighter*1
- XT60(Solar Input port)*1
- Charing:Solar/AC/Carcharging
- plugs & Outlets: EU/UK//AU/US etc
- Dimension:483*295*298(mm)
- Weight:26.5KG
- Battery: 25.6Wh (8000mAh), LiFePO₄ — the safest lithium option
- Input: AC110–240V, 2.5A Max | Output: 12V DC, 2A Max
- Backup time: 2–4 hours (varies by connected load)
- Dual 5.5×2.5mm DC output ports
- ON/OFF switch, 4-LED battery status indicators
- Durable flame-retardant ABS case (126×80×42mm), Weight: 246g
- Applications: Ideal for IP cameras, security systems, speakers, fans, and LED lighting
- Warranty: 12 months
- Nominal Capacity: 300Ah
- Nominal Voltage: 51.2V
- Working Voltage: 40V–58V
- Inverter Output Power: 5kW
- Battery Chemistry: Lithium Iron Phosphate (LiFePO₄)
- Battery Modules: 3 included (stacked design)
- Communication: CAN / RS485
- Smart Management: EMS + LCD Display
- Installation Type: Indoor (Space-saving cabinet)
- Dimensions: 600 × 600 × 1100 mm
- Weight: Approx. 185 kg
- Operating Temp: Charge: 0–50°C / Discharge: -20–55°C
- Humidity Range: 5%–85% RH, no condensation
- 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
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