According to EnergyTrend, a research division of TrendForce, the overall demand for lithium batteries for the 2014 cycle was steady despite some turbulences. The first half of the year saw a strong promotion for power banks. This was followed by a push for prismatic laptop batteries as well as popular large-screen handheld devices driven by Apple in the second half. These factors affected the supply and demand for cylindrical, prismatic and polymer battery markets.