LG Chem Lithium Ion Battery - 7.0kWh - 400V

Product discontinued


RESU7H - 7.0kWh high voltage battery storage system

This battery from LG Chem is a Residential Energy Storage Unit (RESU) featuring a 400V lithium ion battery with integrated battery management system.

The RESU7H is designed to tie in with a grid connect solar system to increase self-consumption and savings. An additional high voltage inverter (SMA Sunnyboy Storage) is also required. 7kWh is enough to offset the late afternoon/evening energy use of an average household. Smaller households could cover evening and early morning electricity needs.

This battery features 3500 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.

All LG Chem RESU 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: 79 Kilograms
Warranty: 10yrs


LG Chem Lithium Ion Battery - 7.0kWh - 400V
Nominal energy7.0kWh
Usable energy6.6kWh
Nominal capacity63Ah
Max charge/discharge power3.5kW
Peak power5.0kW (10 sec)
Nominal voltage400V
Voltage range (DC)350V - 450V
Max altitude2000m
Operating temperature range-10 - +45°C
Optimal temperature range15 - 30°C
Dimensions (mm)744(W) x 692(H) x 206(D)
Net weight76 kg
Protection classIP55
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.

Tesla Powerwall now in stock!

Rainbow Power Company is pleased to announce that Tesla Powerwall Home Batteries are now in stock - ready to be installed.

Tesla Powerwall is the most cost effective and innovative grid-storage battery on the market and can be retrofit to most existing solar systems.

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