Find out how the new Bosch CORE18V battery performs and see it tested head-to-head with the Bosch 4.0 Ah battery!

The Bosch GBA18V63 CORE18V 6.3Ah battery is Bosch's newest and most powerful 18V battery to date.  Watch my full review to see how I've been putting the CORE18V to work and find out all of my thoughts and opinions on it.  Also see it put to the test head to head with the Bosch 4.0 Ah battery to compare torque output, run time and charge time to see if it's worth the upgrade.  I put the CORE18V to work in the Bosch IDH182 Socket Ready Impact Driver as well as the new Bosch GOP18V-28 Starlock Oscillating Multi Tool.