What are the benefits of using lithium-ion batteries? There are many tools around us that run on electricity. Taking advantage of the benefit that they are small and powerful, lithium-ion batteries are incorporated into a variety of devices. In particular, products such as smartphones, PCs, and digital cameras became smaller, lighter, and longer lasting after they started using lithium-ion batteries. Electric vehicles were initially equipped with nickel-metal hydride batteries. However, they now use lithium-ion batteries because of their benefits in being powerful and having low self-discharge and because they do not suffer from the non-user-friendly inability to allow top-up charging like nickel-metal hydride batteries. http://www.yatfeibattery.com/electric-vehicle/