Battery from Dyness 576.0V TOWER T21 (21.31 kWh) with 21.31KWH capacity

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.

Quantity Minimum Sales unit Escrow Reviews Availability Price per pc. Total price
4 pcs.
85 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
20 Ratings
In stock, PL
ID: 195043
Solartraders best price
Save up to 9%
41 pcs.
874 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
1 Rating
In stock, DE
ID: 192240
Prices for members only
Save up to 5%
2 pcs.
43 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
6 Ratings
In stock, DE
ID: 196629
Prices for members only
Save up to 4%
20 pcs.
426 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
41 Ratings
In stock, CZ
ID: 105852
Prices for members only
Save up to 4%
16 pcs.
341 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
4 Ratings
In stock, PL
ID: 161588
Prices for members only
Register for free
41 pcs.
874 kWh
1 pcs.
21 kWh
Piece
Full star Full star Full star Full star Full star
20 Ratings
In stock, PL
ID: 168343
Prices for members only
Register for free
Fast shipping
Test without obligation
Over 4,700 offers
37,570 members
We show you the best offers from leading and verified photovoltaic dealers. Compare prices for solar products with one click and save on every purchase. Make a non-binding inquiry; you can then decide for or against the supplier's offer without any pressure.

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

English
Data Sheet Download icon

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 InstallationStackable design for optimized space usage
Enhanced SafetyIP54 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. 

Reviews

0.0
Empty star Empty star Empty star Empty star Empty star
0 Reviews
This product has no reviews yet.