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Product overview

Reliable performance without the guesswork.

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

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

When paired with a correctly sized and compatible inverter, 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 will depend on the total connected load, inverter efficiency, battery settings and permitted depth of discharge.

The Felicity Solar FLA48100 Lithium Battery is a dependable energy-storage solution designed for home backup, office use, small businesses and off-grid solar installations.

Built with durable Lithium Iron Phosphate (LiFePO₄) technology, the battery offers efficient charging, a long service life and minimal maintenance compared with conventional lead-acid batteries. Its compact enclosed design and built-in monitoring display provide a clean, modern installation.

🔋 Key Features

  • 48V 100Ah lithium battery
  • Approximately 4.8kWh nominal energy capacity
  • Durable LiFePO₄ battery technology
  • Integrated battery-management system
  • Front LCD screen for battery-status monitoring
  • Efficient charging and discharging
  • Low-maintenance operation
  • Compact enclosed design
  • Suitable for compatible 48V hybrid and off-grid inverters
  • Ideal for residential and light-commercial solar systems

✅ Benefits of LiFePO₄ Technology

  • Longer service life than conventional lead-acid batteries
  • Greater 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 an equivalent lead-acid battery bank

⚠️ Inverter Compatibility

Before installation, confirm that the inverter supports:

  • 48V lithium batteries
  • The recommended charging voltage
  • Suitable charging and discharging current
  • The battery’s communication protocol
  • Correct protection devices and cable sizes

Professional installation by a qualified solar technician is recommended to ensure safe wiring, correct configuration and dependable performance.

Technical details

Specifications

  • Brand: Felicity Solar
  • Model: FLA48100
  • Battery Chemistry: Lithium Iron Phosphate — LiFePO₄
  • Nominal Voltage: 48V
  • Battery Capacity: 100Ah
  • Nominal Energy: Approximately 4.8kWh
  • System Type: Low-voltage solar battery
  • Display: Integrated battery-monitoring screen
  • Application: Solar-energy storage and backup power

Capacity note: A 48V 100Ah battery provides approximately 4.8kWh of nominal energy. Some sellers may refer to this battery as a “5kW” or “5kWh” model.

Questions and answers

Before you order

What is the capacity of the Felicity FLA48100 battery?
It is rated at 48V and 100Ah, providing approximately 4.8kWh of nominal energy storage.

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

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 system.

Can it power a refrigerator?
It may support an energy-efficient refrigerator, but the refrigerator’s running and starting wattage should be checked first.

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 hybrid inverter that supports utility charging.

Can it work with any 48V inverter?
Not necessarily. The inverter must support lithium batteries with the correct charging settings and communication protocol.

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

Does it require regular maintenance?
LiFePO₄ batteries require minimal routine maintenance, although the wiring, terminals, protection devices and system settings should be inspected periodically.

Is professional installation recommended?
Yes. Professional installation helps ensure correct wiring, inverter compatibility and a longer battery service life.

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