Battery pack for a cordless power tool

A battery pack, comprising:

• a battery pack housing operably connectable to a handheld power tool,
• ten battery cells in a 5S2P battery pack configuration in which the ten battery cells includes five sets of battery cells, each set of battery cells including two battery cells connected in parallel and the five sets of battery cells are connected in series and disposed in the battery pack housing,
• battery pack terminals electrically connectable to power tool terminals of the power tool and electrically connected to the ten battery cells, and
• a ratio of energy (J) and inductance (H) characteristic greater than 2.50 J/H @100 A and greater than 2.00 J/H @80 A and greater than 2.00 J/H @60 A.