Power tool system and battery pack therefor having wireless communicator

A battery pack for a hand-held power tool, the battery pack comprising:

• at least one battery cell;
• a battery pack housing accommodating the at least one battery cell;
• a power tool interface electrically connected to the at least one battery cell within the battery pack housing, the power tool interface being configured to be physically and electrically connected to and disconnected from a battery pack interface of the power tool;
• and
• a Bluetooth communication device attached to or accommodated within the battery pack housing, the Bluetooth communication device being configured to wirelessly transmit data between the battery pack and an external device using radio waves while the power tool interface of the battery pack is physically and electrically connected to the battery pack interface of the hand-held power tool.

A battery pack for a hand-held power tool, the battery pack comprising:

• at least one battery cell;
• a battery pack housing accommodating the at least one battery cell;
• a power tool interface electrically connected to the at least one battery cell within the battery pack housing, the power tool interface being configured to be physically and electrically connected to and disconnected from a battery pack interface of the power tool;
• and
• a wireless communicator accommodated entirely within the battery pack housing, the wireless communicator being configured to wirelessly transmit data between the battery pack and an external device using radio waves that pass through the battery pack housing while the power tool interface of the battery pack is physically and electrically connected to the battery pack interface of the hand-held power tool.