5.12kWh Amizar 51.2V 100Ah Lithium Battery – 48V Solar & Backup Storage

The 5.12kWh Amizar 51.2V 100Ah Lithium Battery is a practical 48V-class energy-storage battery for residential solar systems, essential-load backup and compatible hybrid inverter installations.

Its specifications give it a clear position within the Amizar battery range: 51.2V provides the higher-voltage platform used by larger 48V-class inverter systems, while 100Ah produces 5.12kWh of nominal energy storage.

This makes the battery particularly useful for customers who need more storage than a compact 2.56kWh system but do not require the much larger capacity of a 10.24kWh or 15.36kWh battery.

For a properly sized home solar installation, 5.12kWh provides a meaningful energy reserve for essential circuits, such as lighting, internet equipment, television, computers and selected compatible appliances.

Technical Specifications

Key Features

• 5.12kWh nominal energy storage
• 51.2V nominal voltage
• 100Ah battery capacity
• Designed for compatible 48V-class systems
• Suitable for residential solar storage
• Practical capacity for essential-load backup
• Can store daytime solar production for later use
• Suitable for compatible hybrid inverter systems
• Mid-range option between smaller 2.56kWh and larger 10.24kWh storage
• Suitable for homes, offices and selected small-business loads

5.12kWh Essential-Load Storage Advantage

The 5.12kWh capacity gives this Amizar battery a different role from much larger 10.24kWh and 15.36kWh models.

It is particularly well suited to customers who want to prioritize essential loads rather than install a very large battery from the beginning.

Depending on actual consumption and system configuration, these loads may include:

💡 Lighting

📡 Wi-Fi & Networking Equipment

📺 Television

💻 Computers & Laptops

🔌 Selected Electronics

🧊 Compatible Refrigeration Loads

The exact backup duration will depend on the combined load and the battery’s usable energy.

51.2V + 100Ah Advantage

The supplied electrical ratings directly produce the battery’s stated energy capacity:

51.2V × 100Ah = 5,120Wh = 5.12kWh

This is important when comparing batteries because Ah alone does not describe total stored energy.

The combination of 100Ah at 51.2V provides 5.12kWh of nominal storage while keeping the battery within the 48V-class architecture used by compatible higher-output hybrid inverter systems.

48V-Class Solar System Advantage

The battery’s 51.2V nominal voltage makes it relevant to compatible 48V-class hybrid inverter installations.

This gives it a distinctly different application from 25.6V batteries designed for 24V-class systems.

A typical configuration can be:

☀️ Solar Panels → ⚡ 48V Hybrid Inverter ↔ 🔋 5.12kWh Amizar Battery → 🏠 Essential Loads

The inverter’s exact battery operating range and charging specifications must match the battery before installation.

Practical Starting Capacity for 48V Solar

For customers moving into a 48V solar platform, 5.12kWh is a practical storage capacity for an essential-load system.

Rather than paying for much larger storage that may not be necessary for the intended loads, the 5.12kWh model can be selected where the customer’s priority is keeping specific circuits operational during outages or periods of low solar generation.

System sizing should always begin with the customer’s actual energy consumption and required backup duration.

Day-to-Evening Solar Storage Advantage

The battery can store compatible solar generation during periods when production exceeds immediate consumption.

A properly configured system can operate broadly as:

☀️ Day: Solar powers selected loads while available surplus energy charges the battery.

🌙 Evening: Stored battery energy supports selected loads when solar production decreases.

This makes the 5.12kWh Amizar useful for both backup power and increasing the practical use of solar-generated electricity outside daylight hours.

Where 5.12kWh Fits in the Amizar Range

*Based on the product specification previously supplied.

Within the 51.2V Amizar range, the relationship is especially clear:

• 100Ah → 5.12kWh
• 200Ah → 10.24kWh
• 300Ah → 15.36kWh

The 5.12kWh model is therefore the more compact storage option within these 51.2V configurations.

Home Solar Advantage

For a residential system, the 5.12kWh battery can provide a focused energy reserve for loads that the customer considers essential.

This makes it particularly relevant to smaller homes, apartments and residential backup installations where maintaining lighting, communication and selected appliances is more important than attempting to power every high-consumption load.

Applications / Use Cases

🏠 Home Solar Backup – stored energy for selected household essentials.

☀️ Solar Energy Storage – captures compatible PV generation for later consumption.

💻 Home Offices – suitable for appropriately sized computers, routers and communication equipment.

🏪 Small Businesses – useful for selected essential business loads where 5.12kWh meets the required storage target.

📡 Communication Backup – practical for routers, networking equipment and related electronics.

⚡ 48V Hybrid Systems – suitable for appropriately matched 48V-class hybrid inverter installations.

Battery & Inverter Matching

Before connecting the battery, verify that the inverter supports:

• 51.2V nominal lithium battery systems
• The battery’s actual operating-voltage range
• Appropriate lithium charging settings
• Required charge and discharge current
• Any required battery-to-inverter communication
• Suitable DC protection

For example, a 48V inverter rating alone does not guarantee compatibility with every 51.2V lithium battery.

Usage & Installation Notes

• Use with a compatible 48V-class inverter/charger
• Confirm lithium charging parameters
• Verify battery discharge capability against inverter demand
• Observe correct battery polarity
• Use appropriately sized DC cables
• Install correctly rated DC protection
• Keep battery terminals and cable connections secure
• Never short-circuit battery terminals
• Follow manufacturer charging and discharge limits
• Protect the battery from water and excessive heat
• Follow Amizar installation and storage requirements
• Have the complete battery/inverter system correctly sized for the intended loads

Mini FAQ

What is the battery capacity?
It is specified at 5.12kWh, 51.2V and 100Ah.

How is 5.12kWh calculated?
The supplied specifications give 51.2V × 100Ah = 5,120Wh = 5.12kWh.

Is this a 48V battery?
Its nominal voltage is 51.2V, placing it in the 48V-class lithium battery category for compatible systems.

How does it compare with the 10.24kWh Amizar battery?
Both are 51.2V-class batteries, but this model has 100Ah / 5.12kWh, while the larger model has 200Ah / 10.24kWh. The 10.24kWh version therefore has twice the nominal storage capacity.

How does it compare with the 15.36kWh Amizar battery?
The 15.36kWh model is specified at 51.2V / 300Ah, providing three times the nominal energy storage of this 5.12kWh model.

Is it suitable for home solar?
Yes. Its specifications make it particularly relevant to 48V-class residential solar and essential-load backup systems.

Can I use it with the Amizar 6.2kW or 8.2kW 48V inverter?
The voltage class is relevant, but the battery’s actual discharge capability, inverter charging parameters and any required communication must be confirmed before pairing.

Is it LiFePO₄?
The supplied details specify an Amizar lithium battery but do not identify the exact lithium chemistry, so LiFePO₄ should only be stated after confirming it from the battery label or datasheet.

Why Buy from Macire

• 5.12kWh Amizar lithium battery
• 51.2V | 100Ah configuration
• Practical storage capacity for 48V-class solar systems
• Suitable for essential-load home backup
• Compact alternative to 10.24kWh and 15.36kWh storage
• Professional inverter and battery system sizing
• Nationwide delivery
• After-sales product support

Visit us: Kenafric Business Park, Ruaraka, Nairobi
WhatsApp: 0750 00 66 00
Calls: 0713 520 969 / 0718 762 530
Website: Macire