The technological iteration of lithium-ion batteries has promoted the leapfrog upgrade of the power tool industry from wired to wireless and from bulky to lightweight. As the core power core of power tools, with the core advantages of high power density, long cycle life, fast charging, light weight and durability, they have gradually replaced traditional nickel-cadmium batteries and are widely used in various industrial and household power tools. They are suitable for diversified operating scenarios such as drilling, cutting, grinding and assembly. Their performance directly determines the operating efficiency, battery life and service life of power tools, and becomes the key to improving the operating experience and reducing the use cost.

　　Compared with ordinary consumer batteries, lithium-ion batteries for power tools focus more on power output and stability, adapting to the high-frequency and high-load operating needs of power tools. Lithium-ion batteries dedicated to industrial-grade power tools have a power density of 150-200Wh/kg, which can provide strong and continuous power, easily cope with high-intensity operations such as metal drilling and stone cutting, and avoid problems such as insufficient power and jamming; household-grade products balance portability and practicality, with small size and light weight, suitable for small tools such as hand drills and electric screwdrivers, easy to carry and operate, and greatly reduce the labor burden.

　　In addition, lithium-ion batteries for power tools have significant usage advantages: the cycle life can reach more than 2000-3000 times, which is 2-3 times that of traditional nickel-cadmium batteries, greatly reducing the frequency of battery replacement and the long-term use cost; fast charging technology can achieve full charge in 1-2 hours, supporting fast supplementary charging during operation intervals, avoiding delays in operation progress due to dead batteries; built-in intelligent BMS battery management system, with overcharge, over-discharge, over-temperature and short-circuit protection functions, can adapt to complex operating environments such as outdoors and construction sites, preventing battery damage or safety accidents. At the same time, it has no memory effect and low self-discharge rate, no need for deliberate discharge when idle, more convenient to use, and no heavy metal pollution, which conforms to the concept of green environmental protection. Today, with the upgrading of technology, lithium-ion batteries for power tools have continuously optimized in terms of power, battery life and temperature resistance, adapting to more high-load and complex scenarios, promoting power tools to develop in a more efficient, lightweight, green and intelligent direction, and becoming an indispensable core power support in industrial production and home decoration.