The Industry's Most Innovative Battery SKIL's industry-leading PWRCore 12 Lithium Batteries contain an innovative temperature management system that results in both longer run time and longer battery life. Each cell is surrounded by revolutionary phase change materials to keep the battery functioning at its best, all so you can power through any project.

• Longer Run Time & Battery Life - Industry leading PWRCore 12 lithium-ion battery technology wraps each cell with cooling material to keep the battery powering on for 25% longer run time and 2X battery life.
• Power On The Go - Plug in to the battery's USB port wherever, whenever with PWRAssist Mobile Charging.
• Always Know Charge Status - Green LEDs show charge status with after-glow
• Pair with any SKIL PWRCore 12 product

Includes:

• 4.0Ah Battery
• Battery Jacket