A rechargeable battery pack including at least one interface for establishing a mechanical and/or electrical connection of the rechargeable battery pack to a hand-held power tool and/or a charging device. The interface includes contact elements for the electrical and/or mechanical contacting of corresponding contact elements on the hand-held power tool and/or corresponding contact elements on the charging device, at least one contact element being a signal contact element electrically connected to a coding element. The rechargeable battery pack also includes a rechargeable battery pack electronics system configured for providing information regarding the rechargeable battery pack via the signal contact element, and storing at least in part in the coding element, and a microcontroller connected to the rechargeable battery pack electronics system in such a way that the microcontroller detects when information is called up at the signal contact element by a hand-held power tool and/or by a charging device.

A battery management system including a battery center and a controller. The battery center includes one or more battery receptacle. The battery center is configured to: receive one or more batteries, identify one or more batteries, and charge one or more batteries. The controller includes a memory and an electronic processor. The controller is configured to: receive, from the battery center, a status of one or more batteries, receive, from a user, an unlock request, and output, to the battery center, an unlock command. Wherein, the battery center unlocks one or more batteries from the one or more battery receptacle upon receiving the unlock command.

Provided are a vehicle-mounted power source control apparatus, a vehicle-mounted power source apparatus, and a vehicle control method that are highly versatile. A power source control apparatus sets a setting value corresponding to a combination of loads to be connected to multiple output ports based on information determining a candidate value for a setting value for each combination of the loads. Also, control relating to backup is performed based on the set setting value. By doing so, it is possible to perform control relating to backup in a mode corresponding to the combination of the loads.

A power storage system of the invention, includes: a power generator; a first storage battery; a second storage battery having smaller capacitance than that of the first storage battery; a first switcher that connects or disconnects the first storage battery to or from a power supply line and a load device; a second switcher that connects or disconnects the second storage battery to or from the power supply line and the load device; a first switching unit that compares a voltage supplied to the load device with first and second predetermined threshold voltages and controls the first switcher according to a result of the comparison; and a second switching unit that compares the voltage supplied to the load device with third and fourth predetermined threshold voltages and controls the second switcher according to a result of the comparison.

A method comprises providing power from a battery to an external device using a first circuit; and receiving power from a first power source to provide power to the battery using a second circuit while providing power to the external device.

An apparatus includes a charger and a plurality of connectors such that a connector includes a switch and a connection between the charger and the connector. The charger is configured to direct a switch associated with one of the plurality of connectors to connect the connector with which it is associated to the charger. The charger is also configured to charge a device connected to the connector according to a type of battery detected in the device. A plurality of devices is charged using a prioritized charging scheme.

A method for identifying an electrical battery provided with an electrical interface, called the identification electrical interface, including several pins, called the identification pins, at least one of the identification pins being connectable to at least one other identification pin to assign an identifier to the battery, the method includes at least one iteration of a step of reading the identifier, including the following operations carried out alternately for each of the identification pins: polarising the identification pin at a predetermined electric potential (V1), called the test potential; and detecting whether or not the test potential (V1) is present on each of the other identification pins in order to identify the identification pins which are looped together.

An independently operable offset wireless tattoo machine battery pack is disclosed. The battery pack is offset relative to a tattoo machine power interface such that the center of gravity of the battery pack is longitudinally closer to the center of gravity of the tattoo machine than is the power interface. The offset wireless tattoo machine battery pack may include electronic circuitry that controls and operates a tattoo machine independent of any separate control unit, providing a unified wireless standalone tattoo machine.

An electronic apparatus comprises a first battery authentication unit that performs a battery authentication process for authenticating a battery pack connected to the electronic apparatus, a second battery authentication unit that performs the battery authentication process, a first control unit that performs an activation process and controls the first battery authentication unit to perform the battery authentication process after the activation process ends, and a second control unit that controls the second battery authentication unit to perform the battery authentication process while the first control unit is performing the activation process.

Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for identifying a battery. The method may be applied to electronic equipment. The electronic equipment may detect an electrical parameter of a cell under test in the battery of the electronic equipment. The electronic equipment may also determine a similarity between the cell under test and a preset cell according to the electrical parameter, the preset cell meeting a first preset matching relation with the electronic equipment. The electronic equipment may further determine, according to the similarity, whether the cell under test meets the first preset matching relation with the electronic equipment, acquiring a determination result.