Skil PWRCORE 20-Volt Lithium 5.0 Ah Battery with Fuel Gauge

The Power Is In Your Hands: The PWRCore 20-Volt 5.0 Ah Lithium Battery is backed by an innovative temperature management system that results in longer run time and battery life. Each cell is surrounded by revolutionary phase change materials to keep the battery cool, and powering through any project. You can use this lithium battery to power up any Skil 20-Volt power tool.