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BOS-G20 vs GB-SL-EU (5 modules in series) 10 of 20 identical Swap Change batteries

Deye BOS-G20 vs Deye GB-SL-EU (5 modules in series)

Deye BOS-G20
BOS-G20
18.43 kWh LFP HV
Open battery page Datasheet PDF
VS
Deye GB-SL-EU (5 modules in series)
GB-SL-EU (5 modules in series)
18.4 kWh LFP HV
Open battery page Datasheet PDF
The verdict

GB-SL-EU (5 modules in series) leads on the differences that matter

The largest is max system capacity: 36.9 kWh more room to expand. 10 of 20 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
10 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 20 parameters
Parameter BOS-G20 GB-SL-EU (5 modules in series) Difference
Max system capacity 61.4 kWh 24.5 kWh 36.9 kWh more room to expand
Nominal voltage 205 V 512 V 307 V apart
Weight 420.0 kg 254.0 kg 166.0 kg lighter
Weight per kWh 22.8 kg/kWh 13.8 kg/kWh 9.0 kg/kWh lighter
Max operating temperature 55 °C 60 °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 IP20 IP65 IP20 vs IP65
Modules per stack 3-12 2-6 3-12 vs 2-6
Operating voltage 166.4-233.6 V 179.2-691.2 V 166.4-233.6 V vs 179.2-691.2 V
Dimensions 1629x530x602 mm 1760x540x385 mm 1629x530x602 mm vs 1760x540x385 mm

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02

Full specification

Parameter BOS-G20 GB-SL-EU (5 modules in series) Difference
Capacity
Usable energy 18.43 kWh 18.40 kWh Effectively the same
Nominal energy 20.48 kWh 20.45 kWh Effectively the same
Depth of discharge 90 % 90 % Same
Max system capacity 61.4 kWh 24.5 kWh +36.9 kWh for BOS-G20
Modules per stack 3-12 2-6 3-12 vs 2-6
Power
Continuous discharge power - - Neither datasheet publishes this
Continuous charge power - - Neither datasheet publishes this
Peak discharge power - - Neither datasheet publishes this
Power per kWh - - Neither datasheet publishes this
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth 90 % 90 % Same
Capacity at end of life 70 % 70 % Same
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 205 V 512 V 307 V apart
Operating voltage 166.4-233.6 V 179.2-691.2 V 166.4-233.6 V vs 179.2-691.2 V
Cell chemistry LFP LFP Same
Active cell balancing - - Neither datasheet publishes this
Thermal management - Yes Not published by Deye
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 - 3-phase Not published by Deye
Backup power - - Neither datasheet publishes this
Physical
Weight 420.0 kg 254.0 kg -166.0 kg for GB-SL-EU (5 modules in series)
Weight per kWh 22.8 kg/kWh 13.8 kg/kWh -9.0 kg/kWh for GB-SL-EU (5 modules in series)
Dimensions 1629x530x602 mm 1760x540x385 mm 1629x530x602 mm vs 1760x540x385 mm
Ingress protection IP20 IP65 IP20 vs IP65
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -20 °C -20 °C Same
Max operating temperature 55 °C 60 °C +5 °C for GB-SL-EU (5 modules in series)
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
03

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04

Written summary

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