Wireless transaction enabled handheld computer system and method

A method of transmitting data over a radio frequency (RF) link from a handheld computer having a low battery charge, comprising:

• providing the handheld computer wit a rechargeable battery having a relatively low charge, the relatively low charges being too low to transmit information using a transceiver of the handheld computer;
• coupling the handheld computer to a recharger;
• providing power from the recharger to the transceiver of the handheld computer and the battery while the handheld computer is coupled to the recharger;
• establishing an RF link using the transceiver while the battery has a relatively low charge and the handheld computer is coupled to the recharger.

A handheld computer, comprising:

• a housing;
• a display supported byte housing;
• a processor coupled to the display;
• a rechargeable battery configured to power the processor and the display;
• a recharging connector coupled to the rechargeable battery;
• and
• a radio frequency (RF) transceiver coupled to the processor and powerable by the battery when the battery has a charge above a low level, the transceiver configured to send and receive data while the bakery charge is below the low level and the recharging connector receives power from a power source and provides power to the rechargeable battery and to the transceiver, the low level being a level at which the battery is unable to power the transceiver when the charge is below the low level.

A handheld computer, comprising:

• an expansion module including a rechargeable battery and a radio frequency (RF) transceiver, the battery configured to power the transceiver when the battery has a charge above a low level;
• a processor
• a display;
• and
• a module connector configured to couple to the expansion module,
• wherein the RF transceiver is configured to send and receive data while the battery charge is below the low level and the module receives power from a power source and provides power to the rechargeable battery and to the transceiver, the low level being a level at which the battery is unable to power the transceiver when the charge is below the low level.