Automatic activation of continuous glucose monitoring (cgm) transmitter

A wireless continuous glucose monitoring (CGM) transmitter, comprising:

• first and second activation pads;
• transmitter electronics;
• a battery having a positive terminal and a negative terminal, the negative terminal coupled to the first activation pad;
• and
• a switch disconnect circuit having an input pin, an output pin, and an enable pin, wherein the input pin is coupled to the positive terminal of the battery, the output pin is coupled to a power input of the transmitter electronics, and the enable pin is coupled to the second activation pad;
• wherein the switch disconnect circuit is configured to electrically disconnect the battery from the transmitter electronics in response to an electrical connection of the first activation pad to the second activation pad.

A method of reducing battery discharge in a wireless continuous glucose monitoring (CGM) transmitter, the method comprising:

• coupling an input of a switch disconnect circuit to a positive terminal of a battery and coupling an output of the switch disconnect circuit to a power input of transmitter electronics of the CGM transmitter;
• coupling a first activation pad to a negative terminal of the battery;
• coupling a second activation pad to an enable pin of the switch disconnect circuit;
• and
• packaging the CGM transmitter in a package comprising an electrical conductor positioned to contact both the first and second activation pads, causing the switch disconnect circuit to disconnect the battery from the transmitter electronics.

A battery-operated electronic device, comprising:

• first and second activation pads;
• device electronics;
• a battery having a positive terminal and a negative terminal, the negative terminal coupled to the first activation pad;
• and
• a switch disconnect circuit having an input pin, an output pin, and an enable pin, wherein the input pin is coupled to the positive terminal of the battery, the output pin is coupled to a power input of the device electronics, and the enable pin is coupled to the second activation pad;
• wherein the switch disconnect circuit is configured to electrically disconnect the battery from the device electronics in response to an electrical connection of the first activation pad to the second activation pad.