Deye RW-M6.1-B

It is the energy tank of a house with panels: it gathers the surplus during the day and gives it back in the evening. Being enclosed in a sealed metal housing, it can sit on an exterior wall or in the garage, not only in a technical room. The chemistry is cobalt-free lithium iron phosphate, stable and with no maintenance requirements.

Out of 6.14 nominal kWh, 5.53 kWh remain usable at 90% depth of discharge, enough for the evening and night consumption of an ordinary house. The rated DC power of 3.07 kW shows what load the battery can support continuously; if needed the current rises to 100 A, with a peak of 150 A for 2 minutes, for starting a motor. At least 6000 cycles down to 70% remaining capacity means, as a guide, more than 16 years at one discharge per day, and the warranty covers 10 years or 20 MWh passed through the battery. The module is 510 x 740 x 145 mm and about 58 kg, so it takes up about as much wall space as a radiator, and it is mounted by two people. Up to 32 units can be connected in parallel, that is 196 kWh.

Cobalt-free LiFePO4, 6.14 kWh nominal / 5.53 kWh usable at 90% DoD, 120 Ah, 51.2 V, range 43.2-57.6 V, rated DC power 3.07 kW. Recommended current 60 A, maximum 100 A, peak 150 A / 2 min at 25 °C; at least 6000 cycles (0.5C/0.5C, 70% EOL). IP65 metal enclosure, wall or floor mounting, 510 x 740 x 145 mm (161 mm depth with the hanging plate), approx. 58 kg, natural cooling, discharge -20...55 °C. Internal BMS with monitoring and balancing, CAN 2.0 and RS485 communication, 5 SOC LEDs and 3 status LEDs, automatic network connection of the modules, firmware update including from a USB stick. Certifications UN38.3, IEC62619, CE, CEI 0-21, VDE2510-50.

Who it suits

Suitable for a house where there is no technical room and the battery must be mounted in the garage or on an exterior wall, with an evening consumption covered by about 5.5 kWh.

Terms explained

• IP65: An enclosure completely sealed against dust and resistant to water jets, therefore suitable for outdoor installation.
• SOC: The state of charge, that is the percentage of energy remaining in the battery, like on a phone; here it is read on 5 LEDs on the enclosure.
• 6000 cycles at 70% EOL: One charge plus one discharge means one cycle; after 6000 cycles the battery still keeps at least 70% of its initial capacity.

Technical specifications

Recommended applications

• Residential storage with outdoor or garage installation
• Deye hybrid systems for self-consumption
• Small commercial applications with an extended battery bank

Warranty

10 years, throughput 20 MWh at 70% EOL

Technical details

Specifications confirmed from the manufacturer's datasheet

Deye RW-M6.1-B is a cobalt-free LiFePO4 battery, with 6.14 kWh of nominal energy and 5.53 kWh of usable energy at 90% DoD. The nominal voltage is 51.2 V, with a working range of 43.2-57.6 V and a rated DC power of 3.07 kW. The recommended charging/discharging current is 60 A, maximum 100 A, with a peak of 150 A for 2 minutes at 25 degrees C. The declared service life is at least 6000 cycles (0.5C/0.5C, 70% EOL).

The IP65 metal enclosure allows wall or floor mounting and measures 510 x 740 x 145 mm (161 mm depth with the hanging plate), with a weight of approx. 58 kg. The internal BMS monitors and balances the cells, and communication to the inverter is through CAN 2.0 and RS485. Local indication is given by 5 SOC LEDs and 3 status LEDs. The modules connect to each other automatically in a network, and the firmware can be updated including from a USB stick. Certifications: UN38.3, IEC62619, CE, CEI 0-21, VDE2510-50.