25kWh Felicity FLA48500TG2 48V 500Ah Lithium Battery with Built-In WiFi Module

The 25kWh Felicity FLA48500TG2 is a large-capacity 48V 500Ah lithium battery with a built-in WiFi module, designed for compatible solar and backup installations with significantly higher energy-storage requirements.

Its 25kWh capacity is the standout feature. Compared with the 15kWh FLA48300TG2, this model provides an additional 10kWh of nominal storage, making it particularly relevant to larger homes, businesses and higher-consumption solar installations.

With a substantial 500Ah capacity on a 48V platform, the FLA48500TG2 provides high-capacity storage from a single battery model, while its built-in WiFi module adds integrated connectivity.

Technical Specifications

Key Features

• Large 25kWh energy-storage capacity
• High-capacity 48V 500Ah configuration
• Lithium battery technology
• Built-in WiFi module
• Single high-capacity battery solution
• Designed for compatible 48V inverter systems
• 10kWh more storage than the 15kWh FLA48300TG2
• 5× the nominal storage of a 5kWh battery
• Suitable for larger residential and commercial solar installations
• Exact Felicity model FLA48500TG2

25kWh – Built for Bigger Storage Requirements

The defining advantage of the FLA48500TG2 is its substantial 25kWh energy capacity.

This capacity gives a solar installation considerably more stored energy for evening consumption, overnight operation and backup periods than smaller 5kWh, 10kWh or 15kWh battery options.

For properties with greater daily energy requirements, the 25kWh capacity can reduce dependence on frequent grid support, provided the solar array, inverter and loads are correctly sized.

48V 500Ah High-Capacity Configuration

The FLA48500TG2 combines:

48V | 500Ah | 25kWh

in one high-capacity lithium battery model.

The 500Ah capacity clearly separates this model from smaller 100Ah, 200Ah and 300Ah Felicity battery configurations.

This makes it particularly relevant where the goal is to achieve substantial energy storage while retaining a compatible 48V battery architecture.

25kWh vs 15kWh Storage

Compared with the 15kWh FLA48300TG2, the FLA48500TG2 provides a significant capacity increase:

The 25kWh model provides approximately 66.7% more nominal storage than the 15kWh model.

For customers whose priority is longer energy availability rather than simply increasing inverter output, this additional storage is a major advantage.

5× the Storage of a 5kWh Battery

The capacity difference becomes even clearer across the range:

5kWh → Base capacity

10kWh → 2× 5kWh

15kWh → 3× 5kWh

25kWh FLA48500TG2 → 5× 5kWh

This positions the FLA48500TG2 as a much larger storage option for installations with higher daily energy consumption.

Built-In WiFi Module

The FLA48500TG2 features a built-in WiFi module, providing integrated connectivity without requiring WiFi to be added as a separate external module.

This distinguishes the model from conventional battery storage where connectivity may require additional hardware.

The exact monitoring platform, battery information available through WiFi, remote functions and setup procedure should follow Felicity’s documentation for the FLA48500TG2.

25kWh Storage Does Not Mean 25kW Output

The 25kWh rating describes stored energy, not the battery’s instantaneous power capability.

🔋 25kWh = Energy storage

⚡ kW = Power supplied at a given moment

A 25kWh battery therefore should not automatically be paired with a 25kW inverter on capacity alone.

The FLA48500TG2’s permitted discharge current/power, inverter battery requirements and communication compatibility should be confirmed before system sizing.

Applications / Use Cases

🏠 Large Homes – substantial battery storage for appropriately calculated household energy requirements.

☀️ High-Capacity Solar Storage – stores greater amounts of daytime solar generation for later consumption.

🏢 Commercial Properties – suitable for compatible installations requiring larger energy reserves.

🏪 Business Backup – high-capacity storage for appropriately sized essential business operations.

🌙 Extended Day-to-Night Solar Use – useful where substantial daytime generation needs to be stored for evening and overnight consumption.

Battery & Inverter Matching

Before installing the FLA48500TG2, verify:

• Compatible 48V battery architecture
• Inverter battery operating-voltage range
• Battery charge-current requirements
• Battery discharge-current/power capability
• Inverter communication compatibility
• Maximum expected load
• Required backup duration
• DC cable sizing
• DC protection and isolation
• WiFi configuration requirements

The supplied information does not state the battery’s cycle life, DOD, charge current, discharge power or communication protocol. These specifications should be confirmed for the FLA48500TG2 rather than assumed from other Felicity battery models.

Usage & Installation Notes

• Match with a compatible 48V inverter system
• Confirm battery discharge capability against the intended inverter and loads
• Configure charging according to Felicity requirements
• Use correctly sized DC cables
• Install appropriate DC protection and isolation
• Observe correct battery polarity
• Protect battery terminals against accidental short circuits
• Configure the built-in WiFi according to manufacturer instructions
• Follow Felicity’s installation and environmental requirements

Mini FAQ

What is the exact model?
Felicity FLA48500TG2.

What is its capacity?
25kWh | 48V | 500Ah.

Is it a lithium battery?
Yes. The supplied product information identifies it as a lithium battery.

Does it have WiFi?
Yes. The FLA48500TG2 has a built-in WiFi module.

How much more storage does it have than the 15kWh model?
It provides 10kWh additional nominal storage, approximately 66.7% more.

How does it compare with a 5kWh battery?
Its 25kWh capacity provides 5× the nominal stored energy of a 5kWh battery.

Can I pair it with a 25kW inverter?
Not based on the 25kWh capacity alone. The battery’s permitted discharge power/current and the inverter’s battery requirements must first be confirmed.

Why Buy from Macire

• Exact Felicity FLA48500TG2 model
• Massive 25kWh storage capacity
• High-capacity 48V 500Ah configuration
• Lithium battery
• Built-in WiFi module
• 10kWh more storage than the 15kWh model
• Professional inverter and battery-system matching support

Visit us: Kenafric Business Park, Ruaraka, Nairobi
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Calls: 0713 520 969 / 0718 762 530
Website: Macire