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GB-L8 vs Tower T7 5 of 18 identical Swap Change batteries

Deye GB-L8 vs Dyness Tower T7

Deye GB-L8
GB-L8
7.36 kWh LFP HV
VS
Tower T7
7.1 kWh HV
The verdict

GB-L8 leads on the differences that matter

The largest is usable energy: 0.26 kWh apart. 5 of 18 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
5 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 18 parameters
Parameter GB-L8 Tower T7 Difference
Usable energy 7.36 kWh 7.10 kWh 0.26 kWh apart
Continuous discharge power 8.19 kW 4.26 kW 3.93 kW more power
Nominal energy 8.18 kWh 7.10 kWh 1.08 kWh apart
Depth of discharge 90 % 100 % 10 pp more of the cells usable
Continuous charge power 8.19 kW 4.26 kW 3.93 kW faster charging
Power per kWh 1.11 kW/kWh 0.60 kW/kWh 0.51 kW/kWh more power for its size
Nominal voltage 205 V 192 V 13 V apart
Weight 97.0 kg 105.0 kg 8.0 kg lighter
Weight per kWh 13.2 kg/kWh 14.8 kg/kWh 1.6 kg/kWh lighter
Min operating temperature -20 °C -10 °C 10 °C more cold tolerant
Max operating temperature 60 °C 50 °C 10 °C more heat tolerant
Ingress protection IP65 IP54 IP65 vs IP54
Dimensions 650x540x385 mm 700x504x380 mm 650x540x385 mm vs 700x504x380 mm

Shop prices by brand: See 44 Deye offers · See 20 Dyness offers

02

Full specification

Parameter GB-L8 Tower T7 Difference
Capacity
Usable energy 7.36 kWh 7.10 kWh 0.26 kWh apart
Nominal energy 8.18 kWh 7.10 kWh 1.08 kWh apart
Depth of discharge 90 % 100 % +10 pp for Tower T7
Max system capacity 24.5 kWh - Not published by Dyness
Modules per stack 2-6 2-6 Same
Power
Continuous discharge power 8.19 kW 4.26 kW +3.93 kW for GB-L8
Continuous charge power 8.19 kW 4.26 kW +3.93 kW for GB-L8
Peak discharge power 10.24 kW - Not published by Dyness
Power per kWh 1.11 kW/kWh 0.60 kW/kWh +0.51 kW/kWh for GB-L8
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 205 V 192 V 13 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 97.0 kg 105.0 kg -8.0 kg for GB-L8
Weight per kWh 13.2 kg/kWh 14.8 kg/kWh -1.6 kg/kWh for GB-L8
Dimensions 650x540x385 mm 700x504x380 mm 650x540x385 mm vs 700x504x380 mm
Ingress protection IP65 IP54 IP65 vs IP54
Outdoor-rated Yes - Not published by Dyness
Min operating temperature -20 °C -10 °C -10 °C for GB-L8
Max operating temperature 60 °C 50 °C +10 °C for GB-L8
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
03

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04

Written summary

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