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Product overview

Reliable performance without the guesswork.

Review the product details, specifications and support information below before ordering.

Best for

Residential solar backup systems

  • Small offices and shops
  • Off-grid homes
  • Essential-load backup systems
  • Security and communication systems
  • Areas with frequent power interruptions
  • Solar-system battery upgrades
Typical use

When connected to a correctly sized inverter and solar array, the battery can support essential appliances such as:

  • 💡 LED lights
  • 📺 Television
  • 📡 Wi-Fi router
  • 💻 Computers and laptops
  • 📱 Phones and small electronic devices
  • 🌀 Fans
  • 📹 CCTV and security equipment
  • 🖨️ Selected office equipment
  • 🧊 Energy-efficient refrigerator, subject to load assessment

Actual backup time depends on the total connected load, inverter efficiency, battery settings and usable depth of discharge.

The LVTOPSUN LVTS-512100-G3 Lithium Battery is a compact residential energy-storage solution designed for solar backup and off-grid power systems. With a capacity of 5.12kWh, a nominal voltage of 51.2V and a rating of 100Ah, it provides dependable stored energy for use at night, during blackouts or whenever grid electricity is unavailable.

Built with durable LiFePO₄ lithium iron phosphate technology, this power-wall battery offers efficient charging, stable performance and low-maintenance operation.

🔋 Key Features

  • 5.12kWh nominal energy capacity
  • 51.2V 100Ah battery rating
  • Designed for compatible 48V solar systems
  • Safe and durable LiFePO₄ technology
  • Integrated battery-management system
  • Front monitoring display
  • Compact power-wall design
  • Efficient charging and discharging
  • Low-maintenance operation
  • Suitable for residential and light-commercial solar systems
  • Compatible with selected hybrid and off-grid inverters

✅ Benefits of LiFePO₄ Technology

  • Longer service life than conventional lead-acid batteries
  • Higher usable energy capacity
  • Faster and more efficient charging
  • Stable performance during repeated charging cycles
  • Reduced maintenance requirements
  • Improved thermal and chemical stability
  • Compact installation compared with equivalent lead-acid storage

⚡ 48V System Compatibility

Although the battery has a nominal voltage of 51.2V, it is commonly used in solar installations classified as 48V systems.

Before installation, confirm that the inverter supports:

  • 51.2V lithium batteries
  • The recommended charging voltage
  • Suitable charging and discharging current
  • The required battery communication protocol
  • Correct cable sizes and protection devices

Professional installation by a qualified solar technician is recommended.

Technical details

Specifications

  • Brand: LVTOPSUN
  • Model: LVTS-512100-G3
  • Battery Chemistry: Lithium Iron Phosphate — LiFePO₄
  • Nominal Energy: 5.12kWh
  • Nominal Voltage: 51.2V
  • Battery Capacity: 100Ah
  • System Classification: 48V low-voltage system
  • Installation Style: Power wall
  • Display: Integrated battery-monitoring screen
  • Application: Solar-energy storage and backup power

Questions and answers

Before you order

What is the battery’s storage capacity?
The battery provides 5.12kWh of nominal energy storage.

What is its voltage and amp-hour rating?
It is rated at 51.2V and 100Ah.

What battery technology does it use?
It uses LiFePO₄ lithium iron phosphate technology.

Can it be used with a 48V inverter?
Yes, provided the inverter supports 51.2V lithium batteries and the correct charging parameters.

Can it be used for home backup power?
Yes. It is suitable for supporting essential household appliances when paired with a compatible inverter and properly sized solar array.

Can it power a refrigerator?
It may support an energy-efficient refrigerator, but its running and starting wattage should be checked before connection.

Can it be charged using solar panels?
Yes. It can be charged through a compatible hybrid or off-grid solar inverter.

Can it also charge from grid electricity?
Yes, when connected to a compatible hybrid inverter that supports utility charging.

How long will it provide backup power?
Backup duration depends on the total wattage of the connected appliances. Lower loads provide longer backup time.

Is professional installation recommended?
Yes. Correct installation helps ensure safe wiring, proper inverter communication and dependable battery performance.

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