An apparatus for the management of one or more power sources when connected to one or more batteries, in particular on a boat, comprises a first power source such as an engine alternator 11 connected to a first source charge manager 26 and a second power source such as a solar panel 13,14 connected to a second source charge manager 26. The first and second source charge managers 26 are connected to a rail 5 maintained over a predetermined range of voltage. The rail 5 is connected to a battery charge manager 33, which manager is connected to a battery such that the battery can be charged from at least one of the first and second power sources.

A method for managing the electrical consumption of an on-board device in a vehicle including an electric power supply battery, the device having a virtual battery, corresponding to a maximum energy quota available to keep the device active, the method includes determining a level of charge of the virtual battery depending on the level of charge of the electric power supply battery, and, in a discharge situation of the electric power supply battery: determining a probable duration of the discharge situation, calculating a score for the benefit of keeping the device active depending on at least one parameter of the vehicle and/or of the user, and, determining an instruction to keep the device active or to stop the device depending on the score and on the probable duration of the discharge situation, and stopping the on-board device if the stop instruction is determined.

A package deposit enclosure designed for public use is powered by an efficient storage battery and photovoltaic cell array. These unique features allow the package deposit enclosure to be placed in locations where no power is available, but where there is frequent human traffic. Sensing and wireless data communication features allow the unit to be emptied less often than typical package delivery enclosures. Wireless communication also allows users' access to real-time information. On board power enables other functions, such as lighting and audio, to enhance device functionality.

A method to prevent parasitic current drain of a vehicle battery includes shutting off the vehicle ignition to initiate a power down sequence of electronic control units, and detecting an excessive current draw condition from the vehicle battery after the vehicle ignition is shut off for a predetermined period of time. After verifying that an excessive current draw condition exists by analyzing data collected from the vehicle, the method continues with powering up the electronic control units on a vehicle communications network and broadcasting a system state equals run, and broadcasting a system state equals off on the vehicle communications network after the electronic control units have reached steady state operation.

A hybrid distributed low voltage power system can include a primary power source that distributes a first low voltage (LV) energy during a first mode of operation to a plurality of first LV devices of a LV device system and fails to distribute the first LV energy to the plurality of first LV devices during a second mode of operation. The system can also include a secondary power source that distributes a second LV energy to at least one second LV device of the LV device system during the first mode of operation and during the second mode of operation. The plurality of first LV devices are not critical during the second mode of operation. The at least one second LV device is critical during the second mode of operation.

An electronic control unit includes a first controller, a second controller, and a determination portion. The first controller includes a first control portion that determines whether or not supply of power from a battery to the first controller is interruptible. The second controller includes a regulator that regulates power supplied from the battery to the first controller and a second control portion that controls the regulator. The determination portion determines whether or not the supply of power is forcibly interruptible even when the first control portion does not determine that the supply of power is interruptible. When the determination portion determines that the supply of power is forcibly interruptible, the second control portion controls the regulator to interrupt the supply of power from the battery to the first controller.

A display cart includes a pedestal, a lifting frame, and a power supply apparatus including a battery arranged within the pedestal and configured to supply power to an electric apparatus, an external power supply configured to supply power to the battery and/or the electric apparatus, and a capacity management system. The capacity management system includes a control device, a power delivery device, and a capacity statistic device. The control device determines output power of the electric apparatus. The capacity statistic device determines a remaining capacity in the battery, calculates a remaining power supply duration according to the output power of the electric apparatus, and sends a statistic result to the control device. The control device further controls the power delivery device to supply power to the electric apparatus according to the statistic result.

A backup power-supply system according to the present invention includes a detector, a power storage unit, and a controller. The detector is configured to detect an abnormality of a power supply that supplies electric power to loads. The power storage unit is configured to supply electric power to the loads when the detector detects the abnormality of the power supply. The controller is configured to monitor a remaining electric energy remaining in the power storage unit, and impose, when the remaining electric energy of the power storage unit is smaller than a threshold electric energy, a limitation on the loads to which the power storage unit supplies the electric power.

Apparatuses, systems and methods associated with an auxiliary power system design are disclosed herein. In embodiments, an auxiliary power system may be mounted within a vehicle or integrated into a starter battery of the vehicle. The auxiliary power system may include an auxiliary battery and circuitry coupled to the auxiliary battery and a vehicle electrical system of the vehicle. The vehicle electrical system may be used to start an engine of the vehicle. The circuitry may detect a trigger and couple the auxiliary battery to the vehicle electrical system in response to detection of the trigger. The auxiliary battery may provide power to the vehicle electrical system to start the engine of the vehicle when the auxiliary battery is coupled to the vehicle electrical system. Other embodiments may be described and/or claimed.

A method for managing the electrical consumption of an on-board device in a vehicle including an electric power supply battery, the device having a virtual battery, corresponding to a maximum energy quota available to keep the device active, the method includes determining a level of charge of the virtual battery depending on the level of charge of the electric power supply battery, and, in a discharge situation of the electric power supply battery: determining a probable duration of the discharge situation, calculating a score for the benefit of keeping the device active depending on at least one parameter of the vehicle and/or of the user, and, determining an instruction to keep the device active or to stop the device depending on the score and on the probable duration of the discharge situation, and stopping the on-board device if the stop instruction is determined.