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Battery-Box Premium HVS 7.7 vs SigenStor BAT 8.0 3 of 19 identical Swap Change batteries

BYD Battery-Box Premium HVS 7.7 vs Sigenergy SigenStor BAT 8.0

Battery-Box Premium HVS 7.7
7.68 kWh 96.0 % round-trip LFP HV
Open battery page Datasheet PDF
VS
Sigenergy SigenStor BAT 8.0
SigenStor BAT 8.0
7.8 kWh LFP HV
Open battery page Datasheet PDF
The verdict

16 differences, and they point both ways

The largest is continuous discharge power: 3.68 kW more power. 3 of 19 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 16 differences
How alike are they
3 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

16 of 19 parameters
Parameter Battery-Box Premium HVS 7.7 SigenStor BAT 8.0 Difference
Continuous discharge power 7.68 kW 4.00 kW 3.68 kW more power
Usable energy 7.68 kWh 7.80 kWh 0.12 kWh apart
Max system capacity 12.8 kWh 48.4 kWh 35.6 kWh more room to expand
Nominal energy 7.68 kWh 8.06 kWh 0.38 kWh apart
Continuous charge power 7.68 kW 4.00 kW 3.68 kW faster charging
Peak discharge power 15.36 kW 6.00 kW 9.36 kW more surge
Power per kWh 1.00 kW/kWh 0.51 kW/kWh 0.49 kW/kWh more power for its size
Weight 129.0 kg 73.0 kg 56.0 kg lighter
Weight per kWh 16.8 kg/kWh 9.4 kg/kWh 7.4 kg/kWh lighter
Min operating temperature -10 °C -20 °C 10 °C more cold tolerant
Max operating temperature 50 °C 55 °C 5 °C more heat tolerant
Inverter None (battery only) Built in (all-in-one) None (battery only) vs Built in (all-in-one)
Ingress protection IP55 IP66 IP55 vs IP66
Modules per stack 2-5 1-6 2-5 vs 1-6
Operating voltage 240-360 V 300-600 V 240-360 V vs 300-600 V
Dimensions 995x585x298 mm 270x767x260 mm 995x585x298 mm vs 270x767x260 mm
02

Price offers

4 shops we track
Shop Battery-Box Premium HVS 7.7 SigenStor BAT 8.0 At this shop
Solaris Energy Poland 13 720 zł incl. VAT - Only Battery-Box Premium HVS 7.7
solarbatterysupermarket.com.au Australia - 3 895 A$ incl. VAT Only SigenStor BAT 8.0
Consor Energia Poland 31 000 zł incl. VAT - Only Battery-Box Premium HVS 7.7
www.solar-outlet.nl Netherlands 3 298.95 € incl. VAT - Only Battery-Box Premium HVS 7.7

All 3 offers for Battery-Box Premium HVS 7.7 · All 1 offer for SigenStor BAT 8.0

Shop prices by brand: See 119 BYD offers · See 11 Sigenergy offers

03

Full specification

Parameter Battery-Box Premium HVS 7.7 SigenStor BAT 8.0 Difference
Capacity
Usable energy 7.68 kWh 7.80 kWh 0.12 kWh apart
Nominal energy 7.68 kWh 8.06 kWh 0.38 kWh apart
Depth of discharge 100 % - Not published by Sigenergy
Max system capacity 12.8 kWh 48.4 kWh +35.6 kWh for SigenStor BAT 8.0
Modules per stack 2-5 1-6 2-5 vs 1-6
Power
Continuous discharge power 7.68 kW 4.00 kW +3.68 kW for Battery-Box Premium HVS 7.7
Continuous charge power 7.68 kW 4.00 kW +3.68 kW for Battery-Box Premium HVS 7.7
Peak discharge power 15.36 kW 6.00 kW +9.36 kW for Battery-Box Premium HVS 7.7
Power per kWh 1.00 kW/kWh 0.51 kW/kWh +0.49 kW/kWh for Battery-Box Premium HVS 7.7
Efficiency and lifetime
Round-trip efficiency 96.0 % - Not published by Sigenergy
Cycle life - - Neither datasheet publishes this
Cycle test depth 100 % 100 % Same
Capacity at end of life - - Neither datasheet publishes this
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 307 V - Not published by Sigenergy
Operating voltage 240-360 V 300-600 V 240-360 V vs 300-600 V
Cell chemistry LFP LFP Same
Active cell balancing - - Neither datasheet publishes this
Thermal management - - Neither datasheet publishes this
Built-in inverter
Inverter None (battery only) Built in (all-in-one) None (battery only) vs Built in (all-in-one)
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 129.0 kg 73.0 kg -56.0 kg for SigenStor BAT 8.0
Weight per kWh 16.8 kg/kWh 9.4 kg/kWh -7.4 kg/kWh for SigenStor BAT 8.0
Dimensions 995x585x298 mm 270x767x260 mm 995x585x298 mm vs 270x767x260 mm
Ingress protection IP55 IP66 IP55 vs IP66
Outdoor-rated Yes - Not published by Sigenergy
Min operating temperature -10 °C -20 °C -10 °C for SigenStor BAT 8.0
Max operating temperature 50 °C 55 °C +5 °C for SigenStor BAT 8.0
Warranty
Warranty 10 yrs - Not published by Sigenergy
Warranted throughput - - Neither datasheet publishes this
04

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05

Written summary

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