Ingco 20V 4.0AH Li-ion Battery Pack is a powerful and reliable energy source for Ingco power tools. With lithium-ion technology, this battery pack offers a long-lasting and consistent supply of power, making it ideal for a variety of DIY and professional applications. It ensures efficient performance, allowing users to tackle tasks with confidence. LED battery power indicator tells you precise battery power. It is convenient for you to charge in time and reminds you of the fully charged state. Protection against over discharge, over-heating or overload, prolong battery life Extremely long life thanks to balance charge technology.