An ECG monitoring device includes an acquisition module that is wirelessly connected to a host module. The acquisition module includes an inductive charging/receiving coil connected to a re-chargeable battery within the acquisition module. The host module includes an inductive charging coil operably connected to a power source for the host module. When the acquisition module is connected to the host module, the charging/receiving coil is positioned in alignment with the inductive charging coil to enable the battery to be charged via the signals emitted from the inductive charging coil and received by the charging/receiving coil. The receiving coil in the acquisition module also sends data to the host module while the acquisition module is positioned within the holster. This data connection is used to send different types of data, and particularly to send module pairing or identifier data utilized to pair or associate the acquisition module with the host module.
