Power Tools Battery 10.8V/1500mAh/2500mAh B12A-LI for SKIL 2412-01, 2487-B2, 2487-B5, F012248702, F012248705 - AliExpress
Amazon.com: SKIL 2-Tool Kit: PWRCore 12 Brushless 12V 1/2 Inch Cordless Drill Driver and 1/4 Inch Hex Impact Driver, Includes 2.0Ah Lithium Battery and Standard Charger - CB738401, Red : Everything Else