Abstract: A protective battery case for use with a mobile electronic device can include a back wall, a right side wall, a left side wall, a bottom wall, and a top wall. The protective battery case can include a battery, which can be disposed in the back wall. A device interface can be configured to engage a corresponding interface on the mobile electronic device to deliver electrical power from the battery to the mobile electronic device. A charging interface can be configured to receive electrical power for charging the battery. The protective battery case can include one or more bumpers disposed on the inside of the protective battery case such that the one or more bumpers abut against sides of the mobile electronic device to provide cushioning and/or shock absorption to protect the mobile electronic device.

Abstract: A protective battery case for use with a mobile electronic device can include a back wall, a right side wall, a left side wall, a bottom wall, and a top wall. The protective battery case can include a battery, which can be disposed in the back wall. A device interface can be configured to engage a corresponding interface on the mobile electronic device to deliver electrical power from the battery to the mobile electronic device. A charging interface can be configured to receive electrical power for charging the battery. The protective battery case can include one or more bumpers disposed on the inside of the protective battery case such that the one or more bumpers abut against sides of the mobile electronic device to provide cushioning and/or shock absorption to protect the mobile electronic device.

Abstract: A charging device for charging an electronic device can include a main body having a recess. First and second electrical cables can be disposed in the recess when in retracted positions, and the first and second electrical cables can extend outside of the main body when in extended positions. The charging device can have a cover that is movable between a closed position, which can cover the recess, and an open position, which can expose the recess to enable the electrical cables to move between the retracted and extended positions. The charging device can include a battery. Electrical power can be received via the second electrical cable for charging the battery. Electrical power can be output from the battery via the first electrical cable to charge an electronic device.