Tesla launched Powerwall last year as a residential backup power supply. However, as the market is not enthusiastic, the company quietly remove one of its product.
Lithium-ion
The FAA issued an official warning to airlines that lithium-ion batteries powering most mobile devices including smartphones are dangerous to be brought and transported in the aircraft’s cargo. The warning was stated following a series of study involving previous incidents involving lithium ion batteries overheating.
Hydrogen fuel cell maker claims it can make an iPhone 6 battery life last for a week. Intelligent Energy which is a British hydrogen fuel cell maker and a green energy company said it's not theoretical, far-off dream and claimed to have built a battery that definitely fits an iPhone6 and requires no charging of up to seven days.
Apple Inc (AAPL.O) is discussing a settlement in a lawsuit brought by electric car battery maker A123 Systems, which accused the iPhone maker of poaching top engineers to build a large-scale battery division.