Abstract: A compact battery charger for charging a battery comprising: a microprocessor; a set of terminals operatively coupled to said microprocessor and configured to electrically couple with an automotive battery; and an internal lithium ion battery, wherein the internal lithium ion battery is a lithium ion battery, wherein a single-ended primary-inductor converter may be configured to receive an input voltage of 5 VDC to 20 VDC and output a predetermined DC charge voltage to said internal lithium ion battery.

Abstract: A compact battery charger for charging a battery comprising: a microprocessor; a set of terminals operatively coupled to said microprocessor and configured to electrically couple with an automotive battery; and an internal lithium ion battery, wherein the internal lithium ion battery is a lithium ion battery, wherein a single-ended primary-inductor converter may be configured to receive an input voltage of 5 VDC to 20 VDC and output a predetermined DC charge voltage to said internal lithium ion battery.

Abstract: A battery charging system comprising a battery charger configured to deliver power to a rechargeable battery, wherein the battery charger comprises a wireless data transceiver; and a remote server communicatively coupled to the battery charger through a network via said wireless data transceiver and configured to communicate one or more battery charge parameters or battery charger control commands between the battery charger and a remotely situated portable user device.

Abstract: A compact battery charger for charging a battery comprising: a microprocessor; a set of terminals operatively coupled to said microprocessor and configured to electrically couple with an automotive battery; and an internal lithium ion battery, wherein the internal lithium ion battery is a lithium ion battery, wherein a single-ended primary-inductor converter may be configured to receive an input voltage of 5 VDC to 20 VDC and output a predetermined DC charge voltage to said internal lithium ion battery.

Abstract: A movable barrier system allows for varying the linear actuator speed to account for speed variances caused by the physical configuration of the system. An example system includes a processor configured to variably control operation speed of the linear actuator during operation between a first position of the movable barrier and a second position of the movable barrier as a function of location of the movable barrier pivot connection relative to the linear actuator pivot connection. The function may be a function of a ratio of a distance from the linear actuator pivot connection to a fixed point and a distance from the movable barrier pivot connection to the fixed point. The function may be calculated by the processor or accessed by the processor according to information about the physical configuration of the system.

Abstract: The invention provides a disc inspection and rejuvenation/repair system. The inspection system and rejuvenation/repair system may be provided as separate modules or may be combined in an integrated unit. The integrated unit may be manually operated, or may be an automated system comprising a controller and disk handling system Appertaining methods of operating the system and modules are also provided.

Abstract: The invention provides a disc inspection and rejuvenation/repair system. The inspection system and rejuvenation/repair system may be provided as separate modules or may be combined in an integrated unit. The integrated unit may be manually operated, or may be an automated system comprising a controller and disk handling system Appertaining methods of operating the system and modules are also provided.