A vehicular removable battery removably mountable in an electric vehicle includes a time acquirer configured to acquire a current time, a time period storage storing a time period in which electric power is supplied, and an electric power supply controller configured to control the supply of the electric power stored in an electric power storage to the electric vehicle. After the electric power supply controller detects that an activation instruction of the electric vehicle has been issued, the electric power supply controller is configured to enable the supply of the stored electric power to the electric vehicle in a case where the acquired current time is included in the stored time period. The electric power supply controller is configured to prohibit the supply of the electric power to the electric vehicle in a case where the acquired current time is not included in the stored time period.

An attachment member attaches a bicycle battery pack to a frame of a bicycle. The attachment member includes a coupling member and a lock. The coupling member restricts movement of the bicycle battery pack relative to the frame while the attachment member is in an attachment state in which the battery pack is attached to the frame. The coupling member extends through a first frame portion of the frame and coupled to a first housing portion of the housing while the attachment member is in the attachment state. The lock is provided on the coupling member and switchable between a restriction state that restricts movement of the coupling member relative to the housing and the frame, and a release state that permits movement of the coupling member relative to the housing and the frame while the attachment member is in the attachment state.

Described herein are methods for determining, based on actual crank conditions, an ability of a battery connected to an electric starter motor, to start an internal combustion engine, wherein the battery is a single monobloc or a plurality of monoblocs that are electrically connected in series or parallel. The method may include: receiving battery temperature data, representing a temperature of the battery at a time of cranking the internal combustion engine; receiving voltage data monitored from the battery, determining an instantaneous minimum voltage of the battery during the time of cranking the internal combustion engine; and determining a capability of the battery to crank the internal combustion engine based on the battery temperature data and the instantaneous minimum voltage of the battery.

The system may be configured to perform operations including measuring a temperature and a voltage of a battery at various times producing data points, wherein each data point comprises the temperature and voltage of the battery and a respective time that the temperature and voltage was measured; assigning each data point to a respective cell in a matrix stored on a, wherein the matrix comprises a first axis comprising voltage ranges and a second axis comprising temperature ranges, wherein each cell is associated with a voltage range and a temperature range, wherein the voltage and temperature of each data point is within the voltage range and temperature range, respectively, of the respective cell; and/or generating a first value in a counter comprised in each cell reflecting a total number of data points assigned to the cell, such that the first value in each cell is stored in the memory.

A battery monitor circuit, systems and methods are disclosed. The battery monitor circuit may have a voltage sensor, a temperature sensor, a processor for receiving a monitored voltage signal from the voltage sensor, for receiving a monitored temperature signal from the temperature sensor, and for generating voltage data and temperature data based on the monitored voltage signal and the monitored temperature signal, an antenna, and a transmitter. The battery monitor circuit may be configured for wirelessly communicating the voltage data and the temperature data to a remote device, via the antenna. In an exemplary embodiment, the battery monitor circuit is located internal to the battery and wired electrically to the battery.

A method for estimating a SOC of a battery electrically coupled to at least one of a load or a power source includes detecting, by a voltage sensor, voltages of the battery. The method further includes determining, by a processor, an average voltage of the battery by averaging the detected voltages of the battery over a predetermined period of time. The method further includes determining, by the processor, a present operating state of the battery based on at least one of the detected voltages of the battery. The method further includes determining, by the processor, a present SOC of the battery based on the present operating state of the battery and the average voltage of the battery. The method further includes transmitting, by the processor, the present SOC of the battery to an output device for outputting the present SOC of the battery.

Batteries are provided that include a base including a body having a hole, and an inner wall extending away from the base and disposed around the hole. An interior of the inner wall and the hole form at least part of a through-hole extending through the battery. The battery includes an outer wall extending away from the base and disposed around the inner wall. Cells are disposed on the base and between the inner wall and the outer wall. Structural battery packs are also provided that include: a hollow elongated member including a first interior space between its first and second ends; and one or more batteries disposed around the hollow elongated member between its first and second ends. Each battery includes a through-hole. The hollow elongated member is disposed through the through-hole of each battery. Methods related to the batteries and the structural battery packs are also provided.

Disclosed are systems and methods for disabling a battery in an un-manned aerial vehicle. The system includes a battery containing lithium; a battery disable unit; and a processor configured to: receive a disable command; and transmit the disable command to the battery disable unit to activate the battery disable unit to cause the battery to malfunction.

A battery recycling method used to recycle used batteries from one or more cell sites includes uniquely identifying and marking the used batteries at the one or more cell sites; packaging and removing the used batteries from the one or more cell sites to a staging facility; packaging the used batteries from a plurality of cell sites at the staging facility with a insulation material; providing the packaged used batteries from the plurality of cell sites to a recycling facility; tracking the used batteries at each foregoing step; and providing a recycling certificate to an operator of the one or more cell sites evidencing successful recycling of the used batteries.

The present invention reduces the effort involved in an operation for cancelling a current cutoff device while inhibiting a capacity decline during parking. Provided is a battery device 20 that is to be mounted on a vehicle, and that is provided with: an assembled battery 30 that supplies electric power to loads 10 including an engine starting device 10A; a current cutoff device 45 that cuts off an electric current to the loads 10 from the assembled battery 30; and a control unit 70, wherein upon detecting a parked state of the vehicle, the control unit 70 operates the current breaker device 45 so as to execute a current cutoff process for cutting off the current flowing from the assembled battery 30 to the loads 10, and following the execution of the current cutoff process, if a prior action to be performed on the vehicle by a user before starting driving is detected, the control unit 70 cancels the cutoff of current by cancelling the operation of the current breaker device 45.