Lithium-ion battery technology is an important innovation in the early 1990s, and is the fastest growing trend in the power tools segment. A Lithium-ion battery is a family of rechargeable battery technology that lithium ions move from the negative electrode to the positive electrode during discharge, and back when charging.

The Lithium-ion batteries are popular these days because the numbers of advantage over competing other battery technologies. Lithium-ion battery is a low maintenance battery with no memory effect that means you do not have to completely discharge before recharging; and it is no scheduled cycling is required to extend the battery’s life; it is lighter weight than other types of rechargeable batteries for a given capacity; it with a low self-discharge rate about losing 5% per month which compared to a 20% loss per month for a NiMH (Nickel-Metal Hydride) battery