Abstract: A case for an electronic device is provided. The case includes a battery and electrical circuitry. The electrical circuitry is configured to receive electrical power from a power source connected to the case, supply the electrical power to the electronic device, and monitor an amount of current of the electrical power used by the electronic device. The electrical circuitry is also configured to charge the battery using a remaining amount of current of the electrical power where the sum of the amount of current used by the electronic device and the remaining amount of current do not exceed a current limit for the power source.

Abstract: A protective case for an electronic device includes a cover, a rechargeable battery, first and second electrical connectors, and electrical circuitry. The first electrical connector is accessible at an outer surface of the cover for electrically connecting to an external power source. The second electrical connector is accessible at an inner surface of the cover for electrically connecting the protective case to the electronic device. The electrical circuitry distributes the received electrical power to the electronic device and to the rechargeable battery. The electrical circuitry also distributes stored electrical power from the rechargeable battery to the electronic device. Distribution of the stored electrical power to the electronic device is conditioned upon an input received from the electronic device, a mode of the protective case, and or a signal received at the protective case.

Abstract: A protective case for an electronic device includes a cover, a rechargeable battery, first and second electrical connectors, and electrical circuitry. The first electrical connector is accessible at an outer surface of the cover for electrically connecting to an external power source. The second electrical connector is accessible at an inner surface of the cover for electrically connecting the protective case to the electronic device. The electrical circuitry distributes the received electrical power to the electronic device and to the rechargeable battery. The electrical circuitry also distributes stored electrical power from the rechargeable battery to the electronic device. Distribution of the stored electrical power to the electronic device is conditioned upon an input received from the electronic device, a mode of the protective case, and or a signal received at the protective case.

Abstract: A protective case for an electronic device includes first and second case portions, a rechargeable battery, first and second electrical connectors, a switch, and electrical circuitry. The second case portion is removably attachable to the first case portion. The first electrical connector is accessible at an outer surface of the second case portion for electrically connecting to an external power source. The second electrical connector is accessible at an inner surface of the second case portion for electrically connecting the protective case to the electronic device. The switch is accessible on the second case portion and is user operable. The electrical circuitry distributes the received electrical power to the electronic device and to the rechargeable battery. The electrical circuitry also distributes stored electrical power from the rechargeable battery to the electronic device. Distribution of the stored electrical power to the electronic device is conditioned upon a state of the switch.

Abstract: A case for an electronic device is provided. The case includes a battery, an interface to receive electrical current from an external power source, and a computer processor. The computer processor is configured to execute computer-readable instructions to receive a communication from the electronic device, limit the received electrical current to a current limit, and allocate the electrical current among the battery and the electronic device based on the received communication.

Abstract: A protective case for an electronic device includes first and second case portions, a rechargeable battery, first and second electrical connectors, a switch, and electrical circuitry. The second case portion is removably attachable to the first case portion. The first electrical connector is accessible at an outer surface of the second case portion for electrically connecting to an external power source. The second electrical connector is accessible at an inner surface of the second case portion for electrically connecting the protective case to the electronic device. The switch is accessible on the second case portion and is user operable. The electrical circuitry distributes the received electrical power to the electronic device and to the rechargeable battery. The electrical circuitry also distributes stored electrical power from the rechargeable battery to the electronic device. Distribution of the stored electrical power to the electronic device is conditioned upon a state of the switch.

Abstract: A method of performing power management in a protective case for a mobile computing device is provided. The method includes receiving electrical current from a power source connected to the protective case. The methods also includes commanding the mobile computing device to consume no more than a specified amount of the received electrical current by transmitting a data communication from the protective case to the mobile computing device indicating the specified amount of the received electrical current. The method further includes monitoring an amount of the received electrical current consumed by the mobile computing device and distributing at least a portion of the received electrical current not consumed by the mobile computing device to a rechargeable battery of the protective case.

Abstract: A protective enclosure for an electronic device is provided. The protective enclosure includes a hard shell that includes a front shell formed to a rigid shape of a front portion of the electronic device and a back shell formed to a rigid shape of a rear portion of the electronic device. The protective enclosure also includes a stretchable cushion layer over the hard shell that has a sufficient elasticity to conform to the hard shell and provide cushioning to the protective enclosure. The protective enclosure also includes a battery and electrical circuitry configured to receive electronic communications from the electronic device and distribute electrical current received from an external power source among the battery and the electronic device based on the received electronic communications.

Abstract: A method of performing power management in a protective case for a mobile computing device is provided. The method includes receiving electrical current from a power source connected to the protective case. The methods also includes commanding the mobile computing device to consume no more than a specified amount of the received electrical current by transmitting a data communication from the protective case to the mobile computing device indicating the specified amount of the received electrical current. The method further includes monitoring an amount of the received electrical current consumed by the mobile computing device and distributing at least a portion of the received electrical current not consumed by the mobile computing device to a rechargeable battery of the protective case.

Abstract: A case for an electronic device is provided. The case includes a battery, an interface to receive electrical power from an external power source, a payment device reader, a product information input device, and a computer processor configured to execute computer-readable instructions. The computer processor executes the instructions to conduct communications with the electronic device, limit an amount of current of the received electrical power consumed by the case, allocate the amount of current among the battery and the electronic device based on the communications, read product information from a product using the product information input device, and read a payment device using the payment device reader, where the payment device is used to pay for the product.

Abstract: A case for an electronic device is provided. The case includes a battery and electrical circuitry. The electrical circuitry is configured to receive electrical power from a power source connected to the case, supply the electrical power to the electronic device, and monitor an amount of current of the electrical power used by the electronic device. The electrical circuitry is also configured to charge the battery using a remaining amount of current of the electrical power where the sum of the amount of current used by the electronic device and the remaining amount of current do not exceed a current limit for the power source.

Abstract: A case for an electronic device is provided. The case includes a battery, an interface to receive electrical current from an external power source, and a computer processor. The computer processor is configured to execute computer-readable instructions to receive a communication from the electronic device, limit the received electrical current to a current limit, and allocate the electrical current among the battery and the electronic device based on the received communication.

Abstract: A case for an electronic device is provided. The case includes a battery, an interface to receive electrical power from an external power source, a payment device reader, a product information input device, and a computer processor configured to execute computer-readable instructions. The computer processor executes the instructions to conduct communications with the electronic device, limit an amount of current of the received electrical power consumed by the case, allocate the amount of current among the battery and the electronic device based on the communications, read product information from a product using the product information input device, and read a payment device using the payment device reader, where the payment device is used to pay for the product.

Abstract: A protective enclosure for an electronic device is provided. The protective enclosure includes a hard shell that includes a front shell formed to a rigid shape of a front portion of the electronic device and a back shell formed to a rigid shape of a rear portion of the electronic device. The protective enclosure also includes a stretchable cushion layer over the hard shell that has a sufficient elasticity to conform to the hard shell and provide cushioning to the protective enclosure. The protective enclosure also includes a battery and electrical circuitry configured to receive electronic communications from the electronic device and distribute electrical current received from an external power source among the battery and the electronic device based on the received electronic communications.

Abstract: A method of power management for an electronic device that is coupled to a protective case for the electronic device is provided. The method includes receiving data including a charge level of a battery of the protective case, identifying a charge level of a battery of the electronic device, and generating a graphical representation. The graphical representation includes an indication of the charge level of the protective case battery and an indication of a charge level of the electronic device battery. The method further includes displaying the graphical representation on a display of the electronic device.

Abstract: A protective case for an electronic device is provided. The protective case includes an interface for connecting to a rechargeable battery, a group of display elements, a device interface for electrically interfacing with the electronic device, and an external interface. The protective case also includes electrical circuitry configured to receive electrical power from an external power source through the external interface, exchange communications with the electronic device through the device interface, determine a charge rate for the rechargeable battery of the electronic device based on information received in the communications, and supply a portion of the received electrical power to the electronic device through the device interface if a condition is satisfied.