A method of generating a charge/discharge protocol of an additional charging/discharging operation included in an activation method with respect to assembled secondary batteries is provided. The method includes operation (a) of measuring a secondary battery thickness increase rate over time while repeating charging/discharging between a first voltage and a second voltage higher than the first voltage with respect to a first secondary battery; operation (b) of performing, at least once, an operation of performing operation (a) with respect to a second secondary battery after fixing the second voltage and changing the first voltage; operation (c) of determining one of first voltages except for a first voltage at a lowest rate from among measured secondary battery thickness increase rates as a lower limit voltage; and operation (d) of setting a protocol so that charging/discharging is repeated between the lower limit voltage and the second voltage.

The method for transmitting power wirelessly according to an embodiment may comprise checking a position of a receiving device while wirelessly transmitting power to the receiving device, and changing a charging stop level which is compared with power loss which corresponds to a difference between transmitted power transmitted to the receiving device and received power received by the receiving device when the receiving device is outside a charging area. The receiving device is outside the charging area may be determined based on that the received power is equal to or greater than reference power and a power control level when transmitting the power to the receiving device is equal to or greater than a reference value. The charging stop level may be returned to an original value when the power loss is lower than the changed charging stop level until a predetermined time elapses after changing the charging stop level.

An in-vehicle battery management device includes a controller configured or programmed to control a charge/discharge device such that the charge/discharge device performs charge or discharge on an in-vehicle battery of an electric vehicle in a predetermined processing condition, the in-vehicle battery being connected to the charge/discharge device. The controller includes a calculator configured or programmed to calculate a degree of deterioration progress of the in-vehicle battery based on charge/discharge information in the charge or discharge; and a communicator configured or programmed to notify a predetermined notification target of the calculated degree of deterioration progress.

A method of controlling a vehicle includes: determining whether a condition for entry into a refresh mode of a battery in the vehicle is satisfied; when the condition is satisfied, predicting an amount of power generated by a solar generator; determining whether to perform the refresh mode based on the predicted amount of power; when the refresh mode is determined to perform, charging the battery using the power generated by the solar generator; identifying a charge amount of the battery; when the identified charge amount is greater than or equal to a first reference charge amount, terminating charging the battery; when an ignition-on command is received, determining whether the charge amount of the battery is greater than or equal to the first reference charge amount; when the charge amount of the battery is less than the first reference charge amount, charging the battery using power generated by an alternator.

A charge control device is mounted on a vehicle to which external power for charging a storage battery is supplied from an external power supply. The charge control device has an acquisition part, a calculation part, and an output part. The acquisition part acquires a detection result of a physical quantity sensor that detects a physical quantity related to charging of the storage battery. The calculation part changes a target value of the physical quantity when a charge amount of the storage battery is equal to or greater than a target charge quantity and a difference between the target value of the physical quantity and the detection result is lower than a predetermined value. The output part outputs an instruction signal including an instruction to control an external power based on a target value to the external power supply.

A battery diagnosing apparatus includes a profile generating unit configured to obtain a battery profile representing a corresponding relationship between voltage and capacity of a battery, and generate a differential profile representing a corresponding relationship between the voltage and a differential capacity for the voltage based on the obtained battery profile, and a control unit configured to receive the differential profile from the profile generating unit, determine a target peak in the differential profile, compare voltages of the determined target peak and a criterion peak of a criterion profile preset for the battery, and judge whether a side reaction occurs in the battery based on the comparison result.

A portable electronic device with a battery switching function is provided. The portable electronic device has two battery switching assemblies corresponding to each battery. Each battery switching assembly has a primary fastener and a secondary fastener corresponding to each other. When the primary fastener is engaged with the secondary fastener, the secondary fastener engages with the corresponding battery so that the battery cannot be detached from the casing of the portable electronic device. When the primary fastener and the secondary fastener are disengaged, the Hall sensor corresponding to the primary fastener sends a signal to a control unit. Then the control unit turns off the power supply of the corresponding battery and switches to another battery to supply power, or closes a specific application to reduce power consumption.

A smart charger and associated methods and systems are disclosed. The smart charger identifies an anticipatory event that triggers battery charging, selects a battery charging profile that matches the anticipatory event, charges the battery of a mobile device based on the battery charging profile, and updates criteria for identifying anticipatory events and/or the battery charging profile that matches the anticipatory event.

An electronic device and method are disclosed. The electronic device includes a radio signal receiving circuit configured to receive a radio signal, a battery, a charging circuit, and a processor. The processor implements the method, including determining a communication quality of the radio signal when the radio signal is received through the radio signal receiving circuit, while the charging circuit is charging the battery, selecting a charging method and set a charging current of the charging circuit for the battery, based on the determined communication quality, and controlling the charging circuit to charge the battery using the selected charging method and the set charging current.

A charging prompting method includes: obtaining a charging state of an electronic device in a wireless charging process; in response to the charging state being an abnormal charging state, outputting charging prompting information at a first playing speed; and in response to the charging state being a normal charging state, outputting the charging prompting information at a second playing speed. The second playing speed being greater than the first playing speed.