The LG Chem RESU is an Energy Storage System with 3.3, 6.5 and 10LV of lithium ion cells rated to 6000 cycles or more. The 10LV unit is capable of putting out 7kW of peak power or 5kW continuously. This system can be expanded to up to 20kWhr for larger applications. The battery has 8.5kWhr of usable capacity with a round trip efficiency of greater than 95%. With an extremely high energy density and stylish enclosure LG will also compete on aesthetics with other products such as Tesla's Powerwall.