BYD Battery-Box Premium HVS 7.7 vs Deye GB-L8
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
Battery-Box Premium HVS 7.7
GB-L8
Difference
Usable energy
7.68 kWh
7.36 kWh
0.32 kWh apart
Continuous discharge power
7.68 kW
8.19 kW
0.51 kW more power
Max system capacity
12.8 kWh
24.5 kWh
11.7 kWh more room to expand
Nominal energy
7.68 kWh
8.18 kWh
0.50 kWh apart
Depth of discharge
100 %
90 %
10 pp more of the cells usable
Continuous charge power
7.68 kW
8.19 kW
0.51 kW faster charging
Peak discharge power
15.36 kW
10.24 kW
5.12 kW more surge
Nominal voltage
307 V
205 V
102 V apart
Weight
129.0 kg
97.0 kg
32.0 kg lighter
Weight per kWh
16.8 kg/kWh
13.2 kg/kWh
3.6 kg/kWh lighter
Min operating temperature
-10 °C
-20 °C
10 °C more cold tolerant
Power per kWh
1.00 kW/kWh
1.11 kW/kWh
0.11 kW/kWh more power for its size
Max operating temperature
50 °C
60 °C
10 °C more heat tolerant
Ingress protection
IP55
IP65
IP55 vs IP65
Modules per stack
2-5
2-6
2-5 vs 2-6
Operating voltage
240-360 V
166.4-700 V
240-360 V vs 166.4-700 V
Dimensions
995x585x298 mm
650x540x385 mm
995x585x298 mm vs 650x540x385 mm
02
3 shops we track
Price offers
Shop
Battery-Box Premium HVS 7.7
GB-L8
At this shop
Shop prices by brand: See 121 BYD offers · See 44 Deye offers
03
Full specification
Parameter
Battery-Box Premium HVS 7.7
GB-L8
Difference
Capacity
Usable energy
7.68 kWh
7.36 kWh
0.32 kWh apart
Nominal energy
7.68 kWh
8.18 kWh
0.50 kWh apart
Depth of discharge
100 %
90 %
+10 pp for Battery-Box Premium HVS 7.7
Max system capacity
12.8 kWh
24.5 kWh
+11.7 kWh for GB-L8
Modules per stack
2-5
2-6
2-5 vs 2-6
Power
Continuous discharge power
7.68 kW
8.19 kW
+0.51 kW for GB-L8
Continuous charge power
7.68 kW
8.19 kW
+0.51 kW for GB-L8
Peak discharge power
15.36 kW
10.24 kW
+5.12 kW for Battery-Box Premium HVS 7.7
Power per kWh
1.00 kW/kWh
1.11 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
307 V
205 V
102 V apart
Operating voltage
240-360 V
166.4-700 V
240-360 V vs 166.4-700 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
129.0 kg
97.0 kg
-32.0 kg for GB-L8
Weight per kWh
16.8 kg/kWh
13.2 kg/kWh
-3.6 kg/kWh for GB-L8
Dimensions
995x585x298 mm
650x540x385 mm
995x585x298 mm vs 650x540x385 mm
Ingress protection
IP55
IP65
IP55 vs IP65
Outdoor-rated
Yes
Yes
Same
Min operating temperature
-10 °C
-20 °C
-10 °C for GB-L8
Max operating temperature
50 °C
60 °C
+10 °C for GB-L8
Warranty
Warranty
10 yrs
10 yrs
Same
Warranted throughput
-
-
Neither datasheet publishes this
04
Open all batteries
More useful comparisons
Similar capacity
BYD Battery-Box Premium HVS 7.7 vs FoxESS ECS2900-H3
15 differences, the largest is max system capacity
Similar capacity
BYD Battery-Box Premium HVS 7.7 vs Sigenergy SigenStor BAT 8.0
16 differences, the largest is continuous discharge power
Similar capacity
BYD Battery-Box Premium HVS 7.7 vs FoxESS ECS4300H-H2
15 differences, the largest is usable energy
Similar capacity
Deye GB-L8 vs Deye GB-SL-EU (2 modules in series)
5 differences, the largest is weight
Similar capacity
Deye GB-L8 vs Dyness Tower Pro TP7
16 differences, the largest is continuous discharge power
Similar capacity
Deye GB-L8 vs FoxESS HS7.5
9 differences, the largest is usable energy
05
Written summary
Checking cache...
Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.