LG Chem Lithium Ion Battery - 6.5kWh - 48V

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RESU6.5 - 6.5kWh battery storage system

This battery from LG Chem is a Residential Energy Storage Unit (RESU) featuring a 48V (nominal 51.8V) lithium ion battery with integrated battery management system.

The RESU6.5 is designed to tie in with a grid connect solar system to increase self-consumption and savings. An additional inverter (e.g. SMA Sunny Island) is also required. 6.5kWh is big enough to offset the late afternoon/evening energy use of an average household. Smaller households could cover evening and early morning electricity needs.

This new RESU generation features 4200 watts continuous power and DC round-tripefficiency of 95% while ensuring 80% of capacity retention after 10 years, and consequently comes with a 10 year warranty.

With the RESU Plus, all new generation 48V models (3.3kWh, 6.5kWh, 9.8kWh) can be "cross-connected" with one other 48V unit of any capacity. All models are floor or wall mountable; the protection class (IP55) even allows outdoor installation; however, RPC recommends a cool location, e.g. inside a brick garage.

Weight: 54 Kilograms
Warranty: 10yrs
Code: BAT-LG06.5
Price: $7204.15


LG Chem Lithium Ion Battery - 6.5kWh - 48V
Nominal energy6.5kWh
Usable energy5.9kWh
Nominal capacity126Ah
Max charge/discharge current100A
Max charge/discharge power4.2kW
Peak power4.6kW (3 sec)
Nominal voltage51.8V
Voltage range (DC)42.0V - 58.8V
Max altitude2000m
Operating temperature range-10 - +45°C
Optimal temperature range15 - 30°C
Dimensions (mm)452(W) x 654(H) x 120(D)
Net weight52 kg
Protection classIP55
ModelRESU 6.5
ManufacturerLG Chem


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We install solar systems in Northern NSW and Southern QLD.

Gold Coast (from Coolangatta to Southport), Nerang and Hinterland (Beaudesert) and out West (Warwick, Stanthorpe, Killarney)

Northern NSW (Tweed Heads to Yamba, including Evans Head, Byron Bay and Ballina); the Far North Coast Hinterland (Grafton via Lismore to Murwillumbah) and out West (Casino to Tenterfield, including Drake and Tabulam, as well as Woodenbong and Bonalbo)

For larger system we also go up to Brisbane or down to Coffs Harbour and even Glen Innes. Other places by arrangement.