Deye RW-M6.1

5.53 kWh usable LFP Low voltage

Compare with closest alternative Datasheet PDF

Usable (kWh)

5.53

Strong · top 4%

Round-trip (%)

Not published

Power (kW)

5.1

Typical · median 3.5 kW

Cycles

6000

Typical · median 6000

Weight (kg)

55.0

Strong · top 21%

Warranty (yrs)

Typical · median 10 yrs

The RW-M series are low-voltage modules designed for building a flexible energy storage bank for homes or small businesses - especially where safe operation, simple installation, and easy expansion are key. The applied chemistry, LiFePO4 (LFP), is cobalt-free and highly valued for its excellent thermal stability, resistance to overloads, and long lifespan during daily cycling - in practice, this means a lower risk of overheating and more predictable degradation over years of use.

The RW-M features modular scalability - the system can be gradually expanded with additional units, adapting the capacity to growing self-consumption from PV or backup power needs. Protection and balancing are handled by an intelligent BMS, and the housing, designed for demanding conditions, facilitates mounting beyond a standard rack. The manufacturer declares a high number of cycles and a long warranty, translating into a truly lower cost of stored energy over the entire usage period. The series is designed for collaboration with hybrid inverters and off-grid systems, where stable charging and discharging currents and remote monitoring are essential.

Ranking

27 batteries up to 6 kWh

Metric This battery Median Position in class Rank in class

Round-trip efficiency - 95.0% Not published -

Power per kWh 0.93 0.98 Typical 13

Cycle life 6000 6000 Typical 2

Weight per kWh 9.9 11.1 Strong · top 21% 6

Warranty 10 yrs 10 yrs Typical 1

Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

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Specifications

Open datasheet PDF

Usable energy 5.53 kWh What the battery delivers, full to empty

Nominal energy 6.14 kWh What the cells hold

Depth of discharge 90 %

Module energy 6.14 kWh

Modules per stack 1

Max system capacity 6.1 kWh

Units in parallel 32

Continuous discharge power 5.12 kW 0.93 kW per kWh

Continuous charge power 5.12 kW

Peak discharge power 7.68 kW For 120 s

Max discharge current 100 A

Max charge current 100 A

Peak discharge current 150 A

Cycle life 6000 cycles At 90 % depth of discharge

Capacity at end of life 70 %

Voltage class Low voltage

Nominal voltage 51.2 V

Operating voltage 43 to 58 V

Cell technology LFP LiFePO4

Cell management Cobalt-free

Dimensions 720 × 460 × 143 mm Height × width × depth

Weight 55.0 kg 9.9 kg per kWh

Enclosure IP65

Mounting wall

Cooling passive

Operating temperature -20 to 55 °C

Compatible inverters Deye hybrid inverter (implied)

Protocols CAN2.0RS485

Warranty 10 years

Warranted throughput 20.0 MWh Cover ends at the years or this, whichever first

Certifications UN38.3UL1973FCCIEC62619CECEI 0-21

Alternatives

All Deye batteries

Battery Usable Round-trip Power Voltage Difference

Deye RW-M6.1 5.53 kWh - 5.1 kW Low voltage You are here

RW-M6.1-B 5.53 kWh - 5.1 kW LV Similar on paper

RW-F5.3-2H3 5.32 kWh - - LV -0.2 kWh

RW-F5.3-1H3 5.32 kWh - - LV -0.2 kWh

SE-G5.1 Pro-B (EU, NA, AU) 5.12 kWh - 5.1 kW LV -0.4 kWh

RW-L5.1 5.12 kWh - 5.0 kW LV -0.4 kWh

SE-G 5.1 5.12 kWh - 2.5 kW LV -0.4 kWh, -2.6 kW

LUX-E-48100LG03 4.86 kWh - - LV -0.7 kWh

DL5.0C 4.61 kWh 90.0% 2.6 kW LV -0.9 kWh, -2.6 kW

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