The Tolsen MP20V is a 20V lithium-ion battery designed to power a wide range of cordless tools within the same platform. This 4.0Ah model 87474 is specifically designed for when you require longer runtimes for more demanding projects. To help you manage your work without unexpected interruptions, the battery features a built-in LED power indicator that shows the remaining charge at a glance. It is fully compatible with chargers 87485 and 87486, ensuring a reliable energy supply for anyone from home DIY enthusiasts to construction professionals using the MP20V system.