Provided is a battery estimation system comprising a processor and a storage device coupled to the processor. The storage device stores accelerated test data obtained by measuring change in degree of deterioration of a rechargeable battery cell at a predetermined temperature. The processor calculates a relationship between the temperature and the magnitude of an activation energy of the rechargeable battery cell on the basis of the accelerated test data, calculates a temperature as a maximum temperature on the basis of the relationship between the temperature and the magnitude of the activation energy of the rechargeable battery cell, the calculated temperature being a temperature at which the magnitude of the activation energy changes from decreasing to increasing in response to increase in the temperature, and determines a temperature equal to or less than the maximum temperature as a temperature to be used in an accelerated test.

Provided is a device configured to determine a power capacity of a battery of a vehicle, predict a first set of values indicative of amounts of power to be stored during a time interval by the battery, the power being generated by a renewable energy generator carried by the vehicle, and predict a second set of values indicative of amounts of energy to be consumed from the battery during the time interval based on previous energy consumption by the vehicle. The device is also configured to determine a score based on the power capacity, the first set of values, and the second set of values. The system is also configured to determine whether the score satisfies a threshold and, in response to a determination that the score satisfies the threshold, activate an internal combustion engine to charge to the battery.

In some examples, an apparatus to authenticate a battery includes a battery voltage monitor to monitor a voltage of the battery. The apparatus to authenticate the battery also includes a voltage source regulator to filter the voltage of the battery and provide the filtered voltage to turn on circuitry to be used to authenticate the battery.

A power supply system with UPS, PCS and circuit diagnosis capabilities is disclosed, including: a DC-bus connected to a voltage/current (V/I) meter, a battery energy storage system (ESS) container, a power conditioning system (PCS), at least one current translation unit, and an energy management controller (EMC), wherein, the V/I meter is used to monitor the voltage and current of the DC-bus, and the PCS performs bi-directional conversion between the DC current from the DC-bus and the AC power from an external distribution panel, the current translation unit translate the DC current from the DC-bus into a voltage suitable for at least a critical load, and the EMC controls the operation of the V/I meter, the battery ESS container, the PCS, and the at least one current translation unit, respectively.

Disclosed is a method for determining the serviceability of a fill-level measuring device that includes at least one electronic unit. The method can be applied to any type of field device that includes at least one electronic unit supplied by an energy store of the field device. The method includes: measuring the capacitance of the energy store and/or measuring the power withdrawal at the energy store. The field device is classified as not operationally reliable if the capacitance of the energy store is below a defined minimum capacitance and/or if the power withdrawal deviates from a predefined normal consumption. An advantage of the method according to the invention is that, in addition to the functional diagnosis, in particular also a prediction up to the expected elapsing of the remaining operating time can be created by recording the power withdrawal or the capacitance over progressive measurement cycles.

Various embodiments of the present technology may provide methods and apparatus for a battery. The apparatus may compute an ideal energy capability of the battery and an actual energy capability of the battery. The apparatus may compare the energy capabilities and determine whether to supply current to a load according to a default duty cycle or an adjusted duty cycle. The apparatus may provide an adjusted duty cycle by increasing the pulse width of the duty cycle or increasing the total period of the duty cycle.

Examples described herein include examples of method for predicting battery performance of a battery comprising collecting battery data corresponding to a plurality of batteries with characteristics similar to the battery during a first time period, storing the collected battery data in a staging memory, generating a logarithmic regression based on the collected battery data, and predicting battery performance for the battery based on the logarithmic regression.

A terminal apparatus detachably mounted on a battery module assembly made up of module units which are formed as aggregates of a plurality of cells and accommodated in a battery case through its open end. The apparatus has a computer which is programed to acquire state of the battery module assembly, to communicate acquired state of the battery module assembly to outside, and to connect or disconnect output of the battery module assembly to or from a load such as a vehicle electric motor, a factory electrical machine tool, home lighting fixtures and a construction machine electric motor by means of switch. The computer is further programed to detect change of the load and to switch output of the battery module assembly in accordance with changed load when the change of the load is detected.

Methods for determining an operating state of a battery with respect to one or more use profiles include: a step of prior learning during which operational limits of the battery are defined depending on parameters of the battery; the operational limits defining an operational zone in which the battery carries out the one or more use profiles, and a non-operational zone in which the battery does not carry out the one or more use profiles; a step of determining the operating state of the battery for a given use profile in the course of which the parameters of the battery in operation are determined and a comparison step in which the operational limits and the parameters of the battery are compared and the battery is positioned in the operational or non-operational zone.

A system that includes a battery, a power source, and a controller. The power source is configured to provide a charging current to the battery initially, and the controller is configured to associate a first impedance associated with a first state of charge (SOC) of the battery. Subsequently, the controller is configured to determine a second impedance of the battery during a discharge state of the battery. The controller may then determine a second SOC of the battery during the discharge state based on the first SOC of the battery when the second impedance corresponds to the first impedance.