Skip to content
Cheaper Home Battery Rebates Are Here! Prices shown are BEFORE rebates. Don't miss out, you can save thousands!! Call us 1300 763 469.
Cheaper Home Battery Rebates Are Here! Prices shown are BEFORE rebates. Don't miss out, you can save thousands!! Call us 1300 763 469.
Deye AI-W5.1-B 5.12 kWh Battery

Deye AI-W5.1-B IP65 LifePO4 Low Voltage Battery System - CEC approved

by DEYE
$3,480.00

Customers please Note:

Shipping is free on most orders within Australia; however, some heavy or bulky items may require specialised freight at additional cost. While we aim to keep shipping free wherever possible, regional and remote areas may attract additional charges depending on location and freight requirements.

For tailored quotes or to confirm shipping costs, please get in touch.
For more details on shipping and delivery, please click here.

Notify me when back in stock

The Deye AI-W5.1-B Lithium Iron Phosphate Battery is a scalable, reliable and efficient energy storage solution tailored for both residential and commercial applications.

With system capacities from 5.12kWh to 30.72kWh per stack and featuring advanced LiFePO4 (Lithium Iron Phosphate) technology, the Deye AI-W5.1-B offers enhanced safety, long lifespan and high energy efficiency.

With a modular design, this battery system allows for flexible expansion, supporting up to 6 stacks in parallel, reaching a maximum capacity of 184kWh. Its intelligent Battery Management System (BMS) ensures optimal performance, safety and ease of monitoring through remote access and firmware updates .

PLEASE NOTE:
This is a heavy item, free shipping to the nearest freight depot or unloading facilities are required, otherwise tailgate fees may apply.
Please contact us for more information.

This listing is for the complete battery stack, including PDU, Base, Energy storage Modules, Power and Communication cables.

Individual components are available- Click below to view:

The AI-W5.1-B Battery Energy Storage System utilises advanced LFP (Lithium Iron Phosphate) technology to deliver safe, low voltage, high efficiency power with a lifespan exceeding 10 years. Its integrated Battery Management System (BMS) continuously monitors cell performance, ensures balanced charging and safeguards against over-voltage and other potential faults. With a broad operating temperature range, IP65-rated protection, and natural cooling capabilities, this battery is well-suited for both indoor and outdoor solar storage applications.

Adaptable Modular Design:

Featuring a modular, stackable design, the AI-W5.1-B can be scaled seamlessly from 5kWh to 184kWh, accommodating diverse energy storage needs. Built-in DC breakers simplify the paralleling of up to 36 battery modules, allowing for flexible installation. This adaptability ensures the system can be tailored precisely to match your solar array size and energy runtime requirements.

Smart Remote Monitoring:

The AI-W5.1-B supports remote monitoring and control through smartphones, PCs, or touchscreen interfaces, providing real-time insights into state of charge, system health, and fault diagnostics. Integration with smart meters and energy management systems ensures optimal performance, while over-the-air firmware updates keep the system’s analytics current and effective.

Key Features:

Low Voltage: Enables safe and easily expandable energy storage 

Safe and Reliable: Utilises Cobalt-Free LiFePO₄ battery chemistry, ensuring superior safety, long service life, and excellent efficiency .

High Performance: Supports high discharge power, with a wide operating temperature range from -20℃ to 55℃ .

Scalable and Modular Design: Easily expandable from 5kWh up to 184kWh with a stackable design and modular flexibility .

Intelligent Management: Equipped with an advanced BMS system for real-time monitoring of voltage, current and temperature .

Seamless Installation: Supports auto-networking capabilities for easy integration .

Eco-Friendly: Built with environmentally friendly materials, non-toxic, and pollution-free .

Technical Specifications:

• Battery Chemistry: LiFePO4

• Battery Module Energy: 5.12kWh

• Battery Module Voltage: 51.2V

• Battery Module Capacity: 100Ah

• Scalability: From 2 (10.24kWh) up to 6 modules (30.72kWh) per stack

• Nominal Voltage: 51.2V

• Operating Voltage: 43.2–57.6V

• Usable Energy: 4.6–27.6kWh (90% Depth of Discharge)

• Charge/Discharge Current (Recommend/Max/Peak): 50A / 100A / 150A (10s)

• Cycle Life: ≥6000 cycles (at 90% DoD, 25°C)

• Energy Throughput: 16MWh (Battery Module @70% EOL)

• Operating Temperature: Charge: 0–55℃ / Discharge: -20–55℃

• Storage Temperature: 0–35℃

• Humidity: 5–95%

• Altitude: ≤2000m

• Installation: Wall-mounted / Floor-mounted

• Communication Ports: CAN2.0, RS485

• IP Rating: IP65

• Warranty: 10 years

Applications:

• Residential Energy Storage Systems

• Commercial Backup Power Solutions

• Off-Grid Power Systems

• Grid-Tied Hybrid Systems

Certifications:

• UN38.3

• IEC62619

• CE

• VDE2510-50

• CEI 0-21

• CE-LVD

• CEC

Click Here To View Deye AI-M5.1-B Lithium Iron Phosphate (LFP) Battery DATASHEET

Click Here To View DEYE AI-M5.1-B Lithium Iron Phosphate (LFP) Battery MANUAL

Interested in starting your solar journey, but need some help in deciding what is the best system for your needs, free and without obligation? 

Start by CLICKING HERE
We'll be glad to assist you, in achieving Energy Independence... Your Way. 


Yep, we know... there are lots of options when buying products online.

We also believe in providing you with only the highest quality products, combined with exceptional customer service.

How You Win:

  • Free shipping Australia wide on most orders
  • Most competitive prices available
  • Pre and after sales Technical Support
  • 30 Day Easy Returns Policy 

Important Disclaimer: Installation of Hardwired Electrical Products in Australia

Please read the following information, including the disclaimer at the bottom of this page;
by purchasing from Buzz Energy Systems, you understand and acknowledge these terms. 

When it comes to the installation of hardwired electrical products in Australia, it is important to be aware of the regulations and guidelines in place to ensure safety and compliance.
As per the Electrical Safety Act, installations operating at ELV (Extra Low Voltage) levels of 120 VDC and below can be installed by individuals with the necessary knowledge and skills.

However, it is crucial to note that installations operating above ELV levels require the expertise of licensed electricians and experienced installers. Products falling under this category are not suitable for DIY (Do-It-Yourself) installation and must be handled by professionals. Attempting to install such products without the proper qualifications can not only compromise performance but also invalidate any manufacturer's warranties. 

At Buzz Energy Systems, we recognise the importance of reliable and efficient installations that prioritise safety, performance and warranty compliance. Our team consists of qualified tradespeople and specialists who are equipped with the expertise required to handle complex electrical installations.

For installations that operate above ELV levels, we strongly advise against DIY installation. Instead, we recommend seeking professional assistance from licensed electricians and experienced installers to ensure the proper installation and optimal performance of such products.

When it comes to installing hardwired electrical products above ELV levels, rest assured that Buzz Energy Systems can provide the necessary qualified tradespeople and specialists. Our professional installation services guarantee compliance with regulations, the preservation of manufacturers warranties and most importantly, your safety.

Do not compromise on the installation of your hardwired electrical products. Trust Buzz Energy Systems for a professional and hassle-free experience.
Contact us today for advice or to schedule your installation with our qualified team.

Legal Indemnity Disclaimer

By engaging with Buzz Energy Systems, purchasing and utilising our products and services, you acknowledge and agree to the following indemnity disclaimer. This disclaimer covers any potential claims for death, injury, property damage, financial loss, or warranty claims:

  1. Assumption of Responsibility: Buzz Energy Systems shall not be responsible or liable for any consequences arising from the installation, operation or use of our products or services, excluding any rights or remedies you may have under the Australian Consumer Law or other applicable legislation. You, as the user or purchaser, assume full responsibility for any potential risks, damages, or losses that may occur, including those not covered under Australian Consumer Law.

  2. Proper Installation and Use: It is your responsibility to ensure that the installation, operation, and use of our products align with relevant laws, regulations, and safety guidelines. We strongly recommend seeking the expertise of licensed professionals to handle installations above ELV levels and to ensure compliance with all applicable codes and standards.

  3. Personal Injury and Property Damage: Buzz Energy Systems shall not be held liable for any injuries, damages, or losses caused by improper installation, operation, or maintenance of our products. You agree to indemnify and hold Buzz Energy Systems harmless from any liability in relation to personal injury or property damage resulting from the use of our products or services.

  4. Financial Loss: Buzz Energy Systems shall not be liable for any financial loss, including but not limited to direct or indirect loss of profits, revenue, or savings, arising from the use or inability to use our products or services. Any costs associated with repairs, replacements, or damages incurred fall under your responsibility.

  5. Warranty Claims: Buzz Energy Systems provides manufacturer warranties on our products, subject to the terms and conditions outlined in the accompanying documentation. However, we shall not be held liable for any warranty claims resulting from improper installation, operation or maintenance of our products. Warranties may become void if our products are not installed or used in accordance with supplied instructions or if unauthorised modifications or repairs are made.

  6. Independent Advice: It is recommended that you seek independent advice, particularly legal or professional guidance, to assess the suitability of our products and services for your specific requirements.

By engaging with Buzz Energy Systems, you acknowledge and voluntarily assume all risks associated with the installation, operation, and use of our products and services. This disclaimer extends to any third parties who may be affected by the use of our products or services.

Please note: This indemnity disclaimer is intended to be a general statement of our position and should not be interpreted as a comprehensive legal contract. We recommend seeking legal advice to draft and review any specific agreements or contracts related to the use of Buzz Energy Systems' products and services.

For Faq's and information regarding product applications and Rebates,
Please Click here. 

Description

The Deye AI-W5.1-B Lithium Iron Phosphate Battery is a scalable, reliable and efficient energy storage solution tailored for both residential and commercial applications.

With system capacities from 5.12kWh to 30.72kWh per stack and featuring advanced LiFePO4 (Lithium Iron Phosphate) technology, the Deye AI-W5.1-B offers enhanced safety, long lifespan and high energy efficiency.

With a modular design, this battery system allows for flexible expansion, supporting up to 6 stacks in parallel, reaching a maximum capacity of 184kWh. Its intelligent Battery Management System (BMS) ensures optimal performance, safety and ease of monitoring through remote access and firmware updates .

PLEASE NOTE:
This is a heavy item, free shipping to the nearest freight depot or unloading facilities are required, otherwise tailgate fees may apply.
Please contact us for more information.

This listing is for the complete battery stack, including PDU, Base, Energy storage Modules, Power and Communication cables.

Individual components are available- Click below to view:

The AI-W5.1-B Battery Energy Storage System utilises advanced LFP (Lithium Iron Phosphate) technology to deliver safe, low voltage, high efficiency power with a lifespan exceeding 10 years. Its integrated Battery Management System (BMS) continuously monitors cell performance, ensures balanced charging and safeguards against over-voltage and other potential faults. With a broad operating temperature range, IP65-rated protection, and natural cooling capabilities, this battery is well-suited for both indoor and outdoor solar storage applications.

Adaptable Modular Design:

Featuring a modular, stackable design, the AI-W5.1-B can be scaled seamlessly from 5kWh to 184kWh, accommodating diverse energy storage needs. Built-in DC breakers simplify the paralleling of up to 36 battery modules, allowing for flexible installation. This adaptability ensures the system can be tailored precisely to match your solar array size and energy runtime requirements.

Smart Remote Monitoring:

The AI-W5.1-B supports remote monitoring and control through smartphones, PCs, or touchscreen interfaces, providing real-time insights into state of charge, system health, and fault diagnostics. Integration with smart meters and energy management systems ensures optimal performance, while over-the-air firmware updates keep the system’s analytics current and effective.

Key Features:

Low Voltage: Enables safe and easily expandable energy storage 

Safe and Reliable: Utilises Cobalt-Free LiFePO₄ battery chemistry, ensuring superior safety, long service life, and excellent efficiency .

High Performance: Supports high discharge power, with a wide operating temperature range from -20℃ to 55℃ .

Scalable and Modular Design: Easily expandable from 5kWh up to 184kWh with a stackable design and modular flexibility .

Intelligent Management: Equipped with an advanced BMS system for real-time monitoring of voltage, current and temperature .

Seamless Installation: Supports auto-networking capabilities for easy integration .

Eco-Friendly: Built with environmentally friendly materials, non-toxic, and pollution-free .

Technical Specifications:

• Battery Chemistry: LiFePO4

• Battery Module Energy: 5.12kWh

• Battery Module Voltage: 51.2V

• Battery Module Capacity: 100Ah

• Scalability: From 2 (10.24kWh) up to 6 modules (30.72kWh) per stack

• Nominal Voltage: 51.2V

• Operating Voltage: 43.2–57.6V

• Usable Energy: 4.6–27.6kWh (90% Depth of Discharge)

• Charge/Discharge Current (Recommend/Max/Peak): 50A / 100A / 150A (10s)

• Cycle Life: ≥6000 cycles (at 90% DoD, 25°C)

• Energy Throughput: 16MWh (Battery Module @70% EOL)

• Operating Temperature: Charge: 0–55℃ / Discharge: -20–55℃

• Storage Temperature: 0–35℃

• Humidity: 5–95%

• Altitude: ≤2000m

• Installation: Wall-mounted / Floor-mounted

• Communication Ports: CAN2.0, RS485

• IP Rating: IP65

• Warranty: 10 years

Applications:

• Residential Energy Storage Systems

• Commercial Backup Power Solutions

• Off-Grid Power Systems

• Grid-Tied Hybrid Systems

Certifications:

• UN38.3

• IEC62619

• CE

• VDE2510-50

• CEI 0-21

• CE-LVD

• CEC

Specifications

Click Here To View Deye AI-M5.1-B Lithium Iron Phosphate (LFP) Battery DATASHEET

Manual

Click Here To View DEYE AI-M5.1-B Lithium Iron Phosphate (LFP) Battery MANUAL

Find my kit

Interested in starting your solar journey, but need some help in deciding what is the best system for your needs, free and without obligation? 

Start by CLICKING HERE
We'll be glad to assist you, in achieving Energy Independence... Your Way. 


Why Buy from Buzz?

Yep, we know... there are lots of options when buying products online.

We also believe in providing you with only the highest quality products, combined with exceptional customer service.

How You Win:

  • Free shipping Australia wide on most orders
  • Most competitive prices available
  • Pre and after sales Technical Support
  • 30 Day Easy Returns Policy 

Disclaimer

Important Disclaimer: Installation of Hardwired Electrical Products in Australia

Please read the following information, including the disclaimer at the bottom of this page;
by purchasing from Buzz Energy Systems, you understand and acknowledge these terms. 

When it comes to the installation of hardwired electrical products in Australia, it is important to be aware of the regulations and guidelines in place to ensure safety and compliance.
As per the Electrical Safety Act, installations operating at ELV (Extra Low Voltage) levels of 120 VDC and below can be installed by individuals with the necessary knowledge and skills.

However, it is crucial to note that installations operating above ELV levels require the expertise of licensed electricians and experienced installers. Products falling under this category are not suitable for DIY (Do-It-Yourself) installation and must be handled by professionals. Attempting to install such products without the proper qualifications can not only compromise performance but also invalidate any manufacturer's warranties. 

At Buzz Energy Systems, we recognise the importance of reliable and efficient installations that prioritise safety, performance and warranty compliance. Our team consists of qualified tradespeople and specialists who are equipped with the expertise required to handle complex electrical installations.

For installations that operate above ELV levels, we strongly advise against DIY installation. Instead, we recommend seeking professional assistance from licensed electricians and experienced installers to ensure the proper installation and optimal performance of such products.

When it comes to installing hardwired electrical products above ELV levels, rest assured that Buzz Energy Systems can provide the necessary qualified tradespeople and specialists. Our professional installation services guarantee compliance with regulations, the preservation of manufacturers warranties and most importantly, your safety.

Do not compromise on the installation of your hardwired electrical products. Trust Buzz Energy Systems for a professional and hassle-free experience.
Contact us today for advice or to schedule your installation with our qualified team.

Legal Indemnity Disclaimer

By engaging with Buzz Energy Systems, purchasing and utilising our products and services, you acknowledge and agree to the following indemnity disclaimer. This disclaimer covers any potential claims for death, injury, property damage, financial loss, or warranty claims:

  1. Assumption of Responsibility: Buzz Energy Systems shall not be responsible or liable for any consequences arising from the installation, operation or use of our products or services, excluding any rights or remedies you may have under the Australian Consumer Law or other applicable legislation. You, as the user or purchaser, assume full responsibility for any potential risks, damages, or losses that may occur, including those not covered under Australian Consumer Law.

  2. Proper Installation and Use: It is your responsibility to ensure that the installation, operation, and use of our products align with relevant laws, regulations, and safety guidelines. We strongly recommend seeking the expertise of licensed professionals to handle installations above ELV levels and to ensure compliance with all applicable codes and standards.

  3. Personal Injury and Property Damage: Buzz Energy Systems shall not be held liable for any injuries, damages, or losses caused by improper installation, operation, or maintenance of our products. You agree to indemnify and hold Buzz Energy Systems harmless from any liability in relation to personal injury or property damage resulting from the use of our products or services.

  4. Financial Loss: Buzz Energy Systems shall not be liable for any financial loss, including but not limited to direct or indirect loss of profits, revenue, or savings, arising from the use or inability to use our products or services. Any costs associated with repairs, replacements, or damages incurred fall under your responsibility.

  5. Warranty Claims: Buzz Energy Systems provides manufacturer warranties on our products, subject to the terms and conditions outlined in the accompanying documentation. However, we shall not be held liable for any warranty claims resulting from improper installation, operation or maintenance of our products. Warranties may become void if our products are not installed or used in accordance with supplied instructions or if unauthorised modifications or repairs are made.

  6. Independent Advice: It is recommended that you seek independent advice, particularly legal or professional guidance, to assess the suitability of our products and services for your specific requirements.

By engaging with Buzz Energy Systems, you acknowledge and voluntarily assume all risks associated with the installation, operation, and use of our products and services. This disclaimer extends to any third parties who may be affected by the use of our products or services.

Please note: This indemnity disclaimer is intended to be a general statement of our position and should not be interpreted as a comprehensive legal contract. We recommend seeking legal advice to draft and review any specific agreements or contracts related to the use of Buzz Energy Systems' products and services.

FAQ's and Guides

For Faq's and information regarding product applications and Rebates,
Please Click here.