Deye GB-L8 vs BYD Battery-Box Premium HVS 7.7
VS
The verdict
GB-L8 leads on the differences that matter
The largest is usable energy: 0.32 kWh apart. 5 of 22 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.
See all 17 differencesHow alike are they
5
of 22 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
17 of 22 parameters
What actually differs
Parameter
GB-L8
Battery-Box Premium HVS 7.7
Difference
Usable energy
7.36 kWh
7.68 kWh
0.32 kWh apart
Continuous discharge power
8.19 kW
7.68 kW
0.51 kW more power
Max system capacity
24.5 kWh
12.8 kWh
11.7 kWh more room to expand
Nominal energy
8.18 kWh
7.68 kWh
0.50 kWh apart
Depth of discharge
90 %
100 %
10 pp more of the cells usable
Continuous charge power
8.19 kW
7.68 kW
0.51 kW faster charging
Peak discharge power
10.24 kW
15.36 kW
5.12 kW more surge
Nominal voltage
205 V
307 V
102 V apart
Weight
97.0 kg
129.0 kg
32.0 kg lighter
Weight per kWh
13.2 kg/kWh
16.8 kg/kWh
3.6 kg/kWh lighter
Min operating temperature
-20 °C
-10 °C
10 °C more cold tolerant
Power per kWh
1.11 kW/kWh
1.00 kW/kWh
0.11 kW/kWh more power for its size
Max operating temperature
60 °C
50 °C
10 °C more heat tolerant
Ingress protection
IP65
IP55
IP65 vs IP55
Modules per stack
2-6
2-5
2-6 vs 2-5
Operating voltage
166.4-700 V
240-360 V
166.4-700 V vs 240-360 V
Dimensions
650x540x385 mm
995x585x298 mm
650x540x385 mm vs 995x585x298 mm
02
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Battery-Box Premium HVS 7.7
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03
Full specification
Parameter
GB-L8
Battery-Box Premium HVS 7.7
Difference
Capacity
Usable energy
7.36 kWh
7.68 kWh
0.32 kWh apart
Nominal energy
8.18 kWh
7.68 kWh
0.50 kWh apart
Depth of discharge
90 %
100 %
+10 pp for Battery-Box Premium HVS 7.7
Max system capacity
24.5 kWh
12.8 kWh
+11.7 kWh for GB-L8
Modules per stack
2-6
2-5
2-6 vs 2-5
Power
Continuous discharge power
8.19 kW
7.68 kW
+0.51 kW for GB-L8
Continuous charge power
8.19 kW
7.68 kW
+0.51 kW for GB-L8
Peak discharge power
10.24 kW
15.36 kW
+5.12 kW for Battery-Box Premium HVS 7.7
Power per kWh
1.11 kW/kWh
1.00 kW/kWh
+0.11 kW/kWh for GB-L8
Efficiency and lifetime
Round-trip efficiency
-
96.0 %
Not published by Deye
Cycle life
6000 cycles
-
Not published by BYD
Cycle test depth
-
100 %
Not published by Deye
Capacity at end of life
70 %
-
Not published by BYD
Self-discharge
-
-
Neither datasheet publishes this
Electrical
Voltage class
High voltage
High voltage
Same
Nominal voltage
205 V
307 V
102 V apart
Operating voltage
166.4-700 V
240-360 V
166.4-700 V vs 240-360 V
Cell chemistry
LFP
LFP
Same
Active cell balancing
-
-
Neither datasheet publishes this
Thermal management
Yes
-
Not published by BYD
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
129.0 kg
-32.0 kg for GB-L8
Weight per kWh
13.2 kg/kWh
16.8 kg/kWh
-3.6 kg/kWh for GB-L8
Dimensions
650x540x385 mm
995x585x298 mm
650x540x385 mm vs 995x585x298 mm
Ingress protection
IP65
IP55
IP65 vs IP55
Outdoor-rated
Yes
Yes
Same
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
04
Open all batteries
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05
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.