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RW-M6.1 vs RW-M6.1-B 20 of 24 identical Swap Change batteries

Deye RW-M6.1 vs Deye RW-M6.1-B

Deye RW-M6.1
RW-M6.1
5.53 kWh LFP LV
Open battery page Datasheet PDF
VS
RW-M6.1-B
5.53 kWh LFP LV
Open battery page Datasheet PDF
The verdict

4 differences, and they point both ways

The largest is max system capacity: 170.8 kWh more room to expand. 20 of 24 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 4 differences
How alike are they
20 of 24 comparable
parameters are identical
identical differs not published
01

What actually differs

4 of 24 parameters
Parameter RW-M6.1 RW-M6.1-B Difference
Max system capacity 6.1 kWh 177.0 kWh 170.8 kWh more room to expand
Weight 55.0 kg 58.0 kg 3.0 kg lighter
Weight per kWh 9.9 kg/kWh 10.5 kg/kWh 0.5 kg/kWh lighter
Dimensions 720x460x143 mm 740x510x145 mm 720x460x143 mm vs 740x510x145 mm
02

Price offers

1 shop we track
Shop RW-M6.1 RW-M6.1-B At this shop
www.nejpanely.cz Czechia - 39 000 Kč incl. VAT Only RW-M6.1-B

All 1 offer for RW-M6.1-B

Shop prices by brand: See 44 Deye offers

03

Full specification

Parameter RW-M6.1 RW-M6.1-B Difference
Capacity
Usable energy 5.53 kWh 5.53 kWh Same
Nominal energy 6.14 kWh 6.14 kWh Same
Depth of discharge 90 % 90 % Same
Max system capacity 6.1 kWh 177.0 kWh +170.8 kWh for RW-M6.1-B
Modules per stack 1 - Not published by Deye
Power
Continuous discharge power 5.12 kW 5.12 kW Same
Continuous charge power 5.12 kW 5.12 kW Same
Peak discharge power 7.68 kW 7.68 kW Same
Power per kWh 0.93 kW/kWh 0.93 kW/kWh Same
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 Low voltage Low voltage Same
Nominal voltage 51 V 51 V Same
Operating voltage 43.2-57.6 V 43.2-57.6 V Same
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) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 55.0 kg 58.0 kg -3.0 kg for RW-M6.1
Weight per kWh 9.9 kg/kWh 10.5 kg/kWh -0.5 kg/kWh for RW-M6.1
Dimensions 720x460x143 mm 740x510x145 mm 720x460x143 mm vs 740x510x145 mm
Ingress protection IP65 IP65 Same
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -20 °C -20 °C Same
Max operating temperature 55 °C 55 °C Same
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput 20.0 MWh 20.0 MWh Same
04

More useful comparisons

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Deye RW-M6.1 vs Deye RW-F5.3-1H3
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Deye RW-M6.1 vs Deye SE-G5.1 Pro-B (EU, NA, AU)
9 differences, the largest is usable energy
05

Written summary

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