Global demand for batteries has never been higher than it is now, and a new report has claimed that demand will only increase in the near future. Experts are now estimating 7.7 percent annual growth through 2019 for the battery industry, thanks largely to the huge growing demand for high-drain devices in China and India. Increases in household income in these countries has meant far more smartphones, laptops and tablets being sold, all of which need batteries. Sales of hybrids and electric cars in North America and Western Europe are also factor in the increased demand.