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SL-EU (5 modules in series) vs L20 15 of 20 identical Swap Change batteries

Deye GB-SL-EU (5 modules in series) vs Deye GB-L20

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
VS
Deye GB-L20
GB-L20
18.4 kWh LFP HV
Open battery page Datasheet PDF
The verdict

L20 leads on the differences that matter

The largest is weight: 40.0 kg lighter. 15 of 20 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
15 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 20 parameters
Parameter SL-EU (5 modules in series) L20 Difference
Weight 254.0 kg 214.0 kg 40.0 kg lighter
Weight per kWh 13.8 kg/kWh 11.6 kg/kWh 2.2 kg/kWh lighter
Inverter Built in (all-in-one) None (battery only) Built in (all-in-one) vs None (battery only)
Operating voltage 179.2-691.2 V 166.4-700 V 179.2-691.2 V vs 166.4-700 V
Dimensions 1760x540x385 mm 1310x540x385 mm 1760x540x385 mm vs 1310x540x385 mm

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02

Full specification

Parameter SL-EU (5 modules in series) L20 Difference
Capacity
Usable energy 18.40 kWh 18.40 kWh Same
Nominal energy 20.45 kWh 20.45 kWh Same
Depth of discharge 90 % 90 % Same
Max system capacity 24.5 kWh 24.5 kWh Same
Modules per stack 2-6 2-6 Same
Power
Continuous discharge power - 20.48 kW Not published by Deye
Continuous charge power - 20.48 kW Not published by Deye
Peak discharge power - 25.60 kW Not published by Deye
Power per kWh - 1.11 kW/kWh Not published by Deye
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth 90 % - Not published by Deye
Capacity at end of life 70 % 70 % Same
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 512 V 512 V Same
Operating voltage 179.2-691.2 V 166.4-700 V 179.2-691.2 V vs 166.4-700 V
Cell chemistry LFP LFP Same
Active cell balancing - - Neither datasheet publishes this
Thermal management Yes Yes Same
Built-in inverter
Inverter Built in (all-in-one) None (battery only) Built in (all-in-one) vs None (battery only)
Inverter power - - Neither datasheet publishes this
Grid connection 3-phase - Not published by Deye
Backup power - - Neither datasheet publishes this
Physical
Weight 254.0 kg 214.0 kg -40.0 kg for L20
Weight per kWh 13.8 kg/kWh 11.6 kg/kWh -2.2 kg/kWh for L20
Dimensions 1760x540x385 mm 1310x540x385 mm 1760x540x385 mm vs 1310x540x385 mm
Ingress protection IP65 IP65 Same
Outdoor-rated - Yes Not published by Deye
Min operating temperature -20 °C -20 °C Same
Max operating temperature 60 °C 60 °C Same
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.