Dyness TOWER T21 (21.31 kWh) (21.31 kWh) Battery System Commercial Battery High voltage 5 Years Product Warranty
The Dyness Tower T21 is a 21.31 kWh modular LiFePO₄ battery designed for residential and commercial energy storage. With high scalability, long cycle life, and strong power output, it ensures efficient solar self-consumption and reliable backup power.
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85 kWh
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21 kWh
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874 kWh
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ID: 192240
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43 kWh
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426 kWh
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341 kWh
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ID: 161588
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41
pcs.
874 kWh
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21 kWh
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20
Ratings
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ID: 168343
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Performance data
Type | Battery System |
Capacity | 21 KWh |
Efficiency | 95.0 % |
Voltage | 576 V |
Voltage min | 524 V |
Voltage max | 648 V |
Measurements
length | 1.500 mm |
width | 504 mm |
Height | 380 mm |
weight | 269 kg |
Manufacturer warranty
Product warranty | 5 years |
Certificates
Dyness Tower T21 (21.31 kWh) – Low Voltage Battery Storage
Product Overview
The Dyness Tower T21 is a modular low-voltage lithium iron phosphate (LiFePO₄) battery system designed for residential and commercial energy storage applications. With a nominal capacity of 21.31 kWh, it offers scalability, high power output, and a stackable floor-standing design.
Its long cycle life, broad inverter compatibility, and natural convection cooling make it a reliable solution for solar self-consumption, backup power, and peak shaving applications.
Technical Data & Specifications
Electrical Data
- Battery Type: Lithium Iron Phosphate (LiFePO₄)
- Nominal Voltage: 51.2 V
- Nominal Capacity: 21.31 kWh
- Usable Capacity: 19.2 kWh
- Voltage Range: 42 – 58.4 V
- Recommended Charge/Discharge Current: 50 A
- Maximum Continuous Charge/Discharge Current: 100 A
- Peak Discharge Current (15s): 120 A
- Cycle Life: >6,000 cycles
Mechanical Properties
- Dimensions (W × D × H): 600 × 380 × 1100 mm
- Weight: 218 kg
- Installation Type: Floor-standing, stackable design
- Cooling Method: Natural convection
Operating Conditions
- Charge Temperature Range: 0°C to 50°C
- Discharge Temperature Range: -10°C to 50°C
- Storage Temperature Range: -20°C to 60°C
- Humidity: 5% – 95% (non-condensing)
- Maximum Installation Altitude: 2000 m
- Protection Rating: IP54
Compatibility & Scalability
- Scalability: Up to 6 units in parallel
- Communication Interfaces: RS485, CAN
- Compatible Inverters: Works with major inverter brands
Certifications & Standards
- Certification Standards: UN38.3, IEC62619, CE, UL1973, UL9540A
Key Features for Installers
✔ 21.31 kWh Modular Battery System – Stackable and scalable for flexible capacity expansion
✔ Long Cycle Life – Over 6,000 cycles at 25°C for extended durability
✔ High Power Discharge – Continuous 100 A and peak discharge up to 120 A (15s)
✔ Flexible Installation – Stackable design for optimized space usage
✔ Enhanced Safety – IP54 protection, natural cooling, and certified to international safety standards
✔ Broad Compatibility – Works with major inverter brands via RS485 & CAN communication
Why Choose the Dyness Tower T21?
The Dyness Tower T21 is a high-capacity, modular energy storage system designed for reliable backup power and solar energy optimization. Its scalability, safety, and compatibility make it an ideal choice for residential and commercial applications.
Dyness
Dyness is an enterprise founded in 2017 focusing on battery system integration R&D and manufacturing.
They specialize in grid tied and off grid LFP battery solutions for residential application in Europe, Australia, Africa, South America etc.
They specialize in grid tied and off grid LFP battery solutions for residential application in Europe, Australia, Africa, South America etc.
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