Abstract: A method of remote sensing a charge includes charging or discharging a first capacitor of a first RC circuit and a second capacitor of a second RC circuit to a predetermined threshold voltage using a power source. When each of the capacitors reach the predetermined threshold voltage, a response signal is provided from a communications module to a handheld computing device comprising a reader system. An amount of time between the response signals is determined. The amount of time is indicative of charge information.

Abstract: A state of charge indicator including an indicator with a display threshold and an indicator circuit electrically coupled to the indicator such that when a main cell voltage of a main cell is greater than a display threshold, the indicator circuit applies a driver voltage to the indicator such that the indicator is inactive and when the main cell voltage is less than the display threshold, the indicator circuit applies the driver voltage to the indicator such that the indicator is active.

Abstract: Included are embodiments for remotely determining a battery characteristic. Some embodiments include searching for a first wireless signal that identifies the energy storage device and, in response to receiving the first wireless signal, determining a current charge level of the energy storage device. Some embodiments include receiving a second wireless signal from the energy storage device, determining from the second wireless signal, whether the current charge level of the energy storage device reaches a predetermined threshold, and in response to determining that the current charge level of the energy storage device reaches the predetermined threshold, sending, by the computing device, an alert indicating the current charge level.

Abstract: An antenna for a cylindrical body may include a flexible substrate coupled to a cylindrical body; a two symmetrical loop omni-directional antenna comprising at least one antenna trace with a first terminal and a second terminal coupled to the flexible substrate; and an integrated circuit electrically coupled to the first terminal and the second terminal.

Abstract: Included are embodiments for remotely determining a battery characteristic. Some embodiments include searching for a first wireless signal that identifies the energy storage device and, in response to receiving the first wireless signal, determining a current charge level of the energy storage device. Some embodiments include receiving a second wireless signal from the energy storage device, determining from the second wireless signal, whether the current charge level of the energy storage device reaches a predetermined threshold, and in response to determining that the current charge level of the energy storage device reaches the predetermined threshold, sending, by the computing device, an alert indicating the current charge level.

Abstract: A state of charge indicator including an indicator with a display threshold and an indicator circuit electrically coupled to the indicator such that when a main cell voltage of a main cell is greater than a display threshold, the indicator circuit applies a driver voltage to the indicator such that the indicator is inactive and when the main cell voltage is less than the display threshold, the indicator circuit applies the driver voltage to the indicator such that the indicator is active.

Abstract: The invention is directed toward a battery pack. The battery pack includes at least one electrochemical cell; a case; a plate; an indicator circuit; and a battery-to-internal volume ratio. The case includes at least one open end. The plate is placed over the at least one open end. The plate includes a terminal plate, a base plate, or any combination thereof. The indicator circuit includes an integrated circuit and an antenna. The indicator circuit is affixed to the plate. The battery-to-internal volume ratio is greater than about 0.52.

Abstract: The invention is directed towards an indicator circuit. The indicator circuit includes a ground plane; an antenna; a decoupler component; and an integrated circuit. The antenna includes at least one antenna trace; a first antenna terminal; and a second antenna terminal. The decoupler component includes a first decoupler component terminal and a second decoupler component terminal. The integrated circuit is electrically coupled to the first antenna terminal and the second antenna terminal. The integrated circuit is electrically coupled to the first decoupler component terminal. The second decoupler component terminal is electrically connected to the ground plane.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

Abstract: The invention is directed towards an indicator circuit. The indicator circuit includes a ground plane; an antenna; a decoupler component; and an integrated circuit. The antenna includes at least one antenna trace; a first antenna terminal; and a second antenna terminal. The decoupler component includes a first decoupler component terminal and a second decoupler component terminal. The integrated circuit is electrically coupled to the first antenna terminal and the second antenna terminal. The integrated circuit is electrically coupled to the first decoupler component terminal. The second decoupler component terminal is electrically connected to the ground plane.

Abstract: A state of charge indicator including an indicator with a display threshold and an indicator circuit electrically coupled to the indicator such that when a main cell voltage of a main cell is greater than a display threshold, the indicator circuit applies a driver voltage to the indicator such that the indicator is inactive and when the main cell voltage is less than the display threshold, the indicator circuit applies the driver voltage to the indicator such that the indicator is active.

Abstract: Included are embodiments for remotely determining a battery characteristic. Some embodiments include searching for a first wireless signal that identifies the energy storage device and, in response to receiving the first wireless signal, determining a current charge level of the energy storage device. Some embodiments include receiving a second wireless signal from the energy storage device, determining from the second wireless signal, whether the current charge level of the energy storage device reaches a predetermined threshold, and in response to determining that the current charge level of the energy storage device reaches the predetermined threshold, sending, by the computing device, an alert indicating the current charge level.

Abstract: A state of charge indicator may include an indicator with a display threshold and an auxiliary cell having an auxiliary cell voltage. The auxiliary cell may be electrically coupled to the indicator such that when a difference between a main cell voltage of a main cell and the auxiliary cell voltage is less than the display threshold, the indicator is inactive and when the difference between the main cell voltage and the auxiliary cell voltage is greater than or about equal to the display threshold, the indicator is active.

Abstract: Included are embodiments for remotely determining a battery characteristic. Some embodiments include searching for a first wireless signal that identifies the energy storage device and, in response to receiving the first wireless signal, determining a current charge level of the energy storage device. Some embodiments include receiving a second wireless signal from the energy storage device, determining from the second wireless signal, whether the current charge level of the energy storage device reaches a predetermined threshold, and in response to determining that the current charge level of the energy storage device reaches the predetermined threshold, sending, by the computing device, an alert indicating the current charge level.

Abstract: A method of remote sensing a charge includes charging or discharging a first capacitor of a first RC circuit and a second capacitor of a second RC circuit to a predetermined threshold voltage using a power source. When each of the capacitors reach the predetermined threshold voltage, a response signal is provided from a communications module to a handheld computing device comprising a reader system. An amount of time between the response signals is determined. The amount of time is indicative of charge information.

Abstract: An article having a conductive body, a magnetic diverter, and a communication device is described. The magnetic diverter is positioned on an outer surface of the conductive body. The magnetic diverter covers a substantial portion of the outer surface of the conductive body. A communication device is positioned on the outer surface of the diverter or may be recessed therein. The communication device is capable of signal coupling with a reader.

Abstract: A system for wireless energy transfer includes a circuit for wireless transmission of energy, including a first, tunable resonator circuit including a transmitter coil and a variable capacitance device connected in shunt across the transmitter coil. Also disclosed is a circuit for wireless reception of energy including a tunable second resonator circuit including a receiver coil inductively coupled to the transmitter coil and a variable capacitance device connected in shunt across the receiver coil. Also disclosed is an arrangement for wireless energy transmission and reception that foregoes the necessity for separate circuits for DC rectification at the reception end of the arrangement. Also disclosed a system for wireless energy transfer where the system includes a tunable resonator circuit embedded in a surface such as piece of furniture, counter, etc., e.g., a table.

Abstract: A state of charge indicator may include an indicator with a display threshold and an auxiliary cell having an auxiliary cell voltage. The auxiliary cell may be electrically coupled to the indicator such that when a difference between a main cell voltage of a main cell and the auxiliary cell voltage is less than the display threshold, the indicator is inactive and when the difference between the main cell voltage and the auxiliary cell voltage is greater than or about equal to the display threshold, the indicator is active.

Abstract: A state of charge indicator may include an indicator with a display threshold and an auxiliary cell having an auxiliary cell voltage. The auxiliary cell may be electrically coupled to the indicator such that when a difference between a main cell voltage of a main cell and the auxiliary cell voltage is less than the display threshold, the indicator is inactive and when the difference between the main cell voltage and the auxiliary cell voltage is greater than or about equal to the display threshold, the indicator is active.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.