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Tower T21 vs GB-L24 5 of 15 identical Swap Change batteries

Dyness Tower T21 vs Deye GB-L24

Tower T21
21.31 kWh HV
Open battery page Datasheet PDF
VS
Deye GB-L24
GB-L24
22.08 kWh LFP HV
Open battery page Datasheet PDF
The verdict

GB-L24 leads on the differences that matter

The largest is usable energy: 0.77 kWh apart. 5 of 15 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
5 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 15 parameters
Parameter Tower T21 GB-L24 Difference
Usable energy 21.31 kWh 22.08 kWh 0.77 kWh apart
Nominal energy 21.31 kWh 24.54 kWh 3.23 kWh apart
Depth of discharge 100 % 90 % 10 pp more of the cells usable
Nominal voltage 576 V 614 V 38 V apart
Weight 269.0 kg 253.0 kg 16.0 kg lighter
Min operating temperature -10 °C -20 °C 10 °C more cold tolerant
Weight per kWh 12.6 kg/kWh 11.5 kg/kWh 1.2 kg/kWh lighter
Max operating temperature 50 °C 60 °C 10 °C more heat tolerant
Ingress protection IP54 IP65 IP54 vs IP65
Dimensions 1500x504x380 mm 1530x540x385 mm 1500x504x380 mm vs 1530x540x385 mm

Shop prices by brand: See 26 Dyness offers · See 44 Deye offers

02

Full specification

Parameter Tower T21 GB-L24 Difference
Capacity
Usable energy 21.31 kWh 22.08 kWh 0.77 kWh apart
Nominal energy 21.31 kWh 24.54 kWh 3.23 kWh apart
Depth of discharge 100 % 90 % +10 pp for Tower T21
Max system capacity - 24.5 kWh Not published by Dyness
Modules per stack 2-6 2-6 Same
Power
Continuous discharge power 12.78 kW - Not published by Deye
Continuous charge power 12.78 kW - Not published by Deye
Peak discharge power - - Neither datasheet publishes this
Power per kWh 0.60 kW/kWh - Not published by Deye
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth - - Neither datasheet publishes this
Capacity at end of life - 70 % Not published by Dyness
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 576 V 614 V 38 V apart
Operating voltage - 166.4-700 V Not published by Dyness
Cell chemistry - LFP Not published by Dyness
Active cell balancing - - Neither datasheet publishes this
Thermal management - Yes Not published by Dyness
Built-in inverter
Inverter None (battery only) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 269.0 kg 253.0 kg -16.0 kg for GB-L24
Weight per kWh 12.6 kg/kWh 11.5 kg/kWh -1.2 kg/kWh for GB-L24
Dimensions 1500x504x380 mm 1530x540x385 mm 1500x504x380 mm vs 1530x540x385 mm
Ingress protection IP54 IP65 IP54 vs IP65
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -10 °C -20 °C -10 °C for GB-L24
Max operating temperature 50 °C 60 °C +10 °C for GB-L24
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
03

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The same specification on paper
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.