Like all other tool manufacturers these days, Bosch is looking to give users a corded experience in a cordless tool. Here, with its new Core 18V 6.3Ah battery (which works on all existing 18V tools), the company is attempting this in three ways: making the cells bigger, managing heat transfer, and making the battery more efficient. Thereon, from Bosch, does a great job explaining the difference between this technology and Bosch’s previous 18V battery technology.