An ignition module for use on a gas appliance, comprising: a base housing configured to be fixedly mounted on a gas appliance surface; a battery compartment engaged with the base housing, and configured to hold a battery in its operable position with the battery's negative terminal disposed at a lower elevation than the battery's positive terminal when the base housing is mounted for operation on the gas appliance, the battery compartment comprising a battery access portion, operable to selectably access the battery compartment; the base housing comprising one or more module mounting point components, configured to be used to mount the base housing on a vertical surface of the gas appliance at an angle such that a first end of the battery compartment, comprising the battery access portion, is disposed at a lower elevation than an opposing, second end of the battery compartment thereby providing a downward slope from the second end of the battery compartment to the first end of the battery compartment; wherein the module mounting point components comprise either: a first module mounting foot and a second module mounting foot, the second module mounting foot comprising a greater thickness than the first module mounting foot, the thickness measured from a mounting surface of the respective module mounting feet, to dispose the battery compartment at a downward slope; or a leading end and a trailing end, the leading end comprising a thickness greater than the trailing end, and configured to be mounted in a horizontal configuration on the vertical surface such that the battery compartment is disposed at a downward slope. a base housing configured to be fixedly mounted on a gas appliance surface; a battery compartment engaged with the base housing, and configured to hold a battery in its operable position with the battery's negative terminal disposed at a lower elevation than the battery's positive terminal when the base housing is mounted for operation on the gas appliance, the battery compartment comprising a battery access portion, operable to selectably access the battery compartment; the base housing comprising one or more module mounting point components, configured to be used to mount the base housing on a vertical surface of the gas appliance at an angle such that a first end of the battery compartment, comprising the battery access portion, is disposed at a lower elevation than an opposing, second end of the battery compartment thereby providing a downward slope from the second end of the battery compartment to the first end of the battery compartment; wherein the module mounting point components comprise either: a first module mounting foot and a second module mounting foot, the second module mounting foot comprising a greater thickness than the first module mounting foot, the thickness measured from a mounting surface of the respective module mounting feet, to dispose the battery compartment at a downward slope; or a leading end and a trailing end, the leading end comprising a thickness greater than the trailing end, and configured to be mounted in a horizontal configuration on the vertical surface such that the battery compartment is disposed at a downward slope. a first module mounting foot and a second module mounting foot, the second module mounting foot comprising a greater thickness than the first module mounting foot, the thickness measured from a mounting surface of the respective module mounting feet, to dispose the battery compartment at a downward slope; or a leading end and a trailing end, the leading end comprising a thickness greater than the trailing end, and configured to be mounted in a horizontal configuration on the vertical surface such that the battery compartment is disposed at a downward slope.