S. carmaker Tesla Motors is expected to launch today a home battery pack that will cut electricity bills. Battery packs can store the energy of solar panels and other renewable sources of energy and extract power from the grid at night for use during peak hours during the day. Tesla uses advanced lithiumIon batteries powered by electric vehicles cost up to £ 54,500. Its top-of-the-The range Model S can travel 300 miles on a single charge and can accelerate from 0 to 60 mph in 3 minutes. 1 seconds. Tesla, run by billionaire tech entrepreneur Elon Musk, has been secretly testing batteries at home around California.