what's inside of Cordless drill machine battery pack | open cordless screwdriver battery #shorts - YouTube
Tool Tear Down: How to Disassemble a Cordless Drill | eReplacementParts.com - YouTube
BOSCH GXL18V-240B22 18V 2-Tool Combo Kit with 1/2 In. Hammer Drill/Driver, Two-In-One 1/4 In. and 1/2 In. Bit/Socket Impact Driver/Wrench and (2) 2 Ah Standard Power Batteries - Amazon.com