A battery characterization system includes a drive-sense circuit (DSC), memory that stores operational instructions, and processing module(s) operably coupled to the DSC and the memory. Based on a reference signal, the DSC generates a charge signal, which includes an AC (alternating current) component, and provides the charge signal to a terminal of a battery via a single line and simultaneously to senses the charge signal via the single line to detect an electrical characteristic of the battery based on a response of the battery. The DSC generates a digital signal representative of the electrical characteristic of the battery. The processing module(s), based on the operational instructions, generate the reference signal to include a frequency sweep of the AC component of the charge signal (e.g., different frequencies at different times or multiple frequencies simultaneously) and processes the digital signal to characterize the battery across the different respective frequencies and generate spectrum analysis (SA) information of the battery.

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

Provided is a battery degradation detection device that detects the degradation state of a battery installed on a vehicle. The battery degradation detection device includes: a flag setting unit that sets, each time the vehicle is started, a flag indicating a sign of degradation of the battery on the basis of a voltage value of the battery at the start of the vehicle; a flag storage unit that stores the flag; a sign-of-degradation determination unit that determines whether or not the battery shows a sign of degradation on the basis of the number of times the flag has been stored in the past; and a degradation determination unit that determines whether or not the battery is in a degradation state on the basis of the voltage value of the battery when it is determined by the sign-of-degradation determination unit that the battery shows a sign of degradation.

This power management device: receives, at predetermined intervals for each certain time period, an integrated value that is obtained by totaling power flowing between a power system and a consumer facility within the certain time period from a smart meter that measures the amount of the power flowing between the power system and the consumer facility; receives, at shorter intervals than the predetermined intervals, the measured value of the power flowing in the consumer facility from a power sensor provided separately from the smart meter; and calculates complementary information that complements the integrated value on the basis of the measured value.

In embodiments, an apparatus may include a battery life monitor. The battery life monitor may, in some embodiments, receive a battery level indicator indicative of a current charge level of a battery that is coupled with the apparatus and a first temperature that may indicate a temperature of a current location of the apparatus. The battery life monitor may also receive one or more additional temperatures that indicate respective temperatures of one or more locations in which the apparatus is likely to be operated prior to discharge of the current charge level of the battery. Based at least in part on the current charge level, the first temperature indicator, and the one or more additional temperatures, the battery life monitor may calculate one or more battery life estimates that correspond with the one or more locations. Other embodiments may be described and/or claimed.

A battery system includes a plurality of batteries that generate operating information thereof, a server unit, an operation unit and a management unit. The server unit collects the operating information from the batteries, and provides the same altogether to the operation unit. The management unit receives the operating information from the operation unit to determine an operation condition of each of the batteries.

An automatic battery fluid level monitoring system is provided. The automatic monitoring system includes a fluid consumption algorithm, programmed into a microprocessor based motor controller, connected through a communications link to a microprocessor based battery charger. The battery charger is electrically connected to a flooded type battery as well as a power connection such as being plugged into an outlet, the electrical connection from an alternator, or the like. Once the fluid consumption algorithm indicates that the fluid level is too low, a battery fluid indicator is activated utilizing a visual and/or audio display. After the battery is refilled, a fluid added reset is triggered, which deactivates the battery fluid indicator. Additional embodiments include utilizing a wired or wireless connection to a remote fleet management system, as well as alternative vehicle performance rules wherein the vehicle performance parameters can be purposefully altered to effect the ongoing performance of the vehicle.

A relay (20) receives a battery information acquisition time from each battery module (10) and calculates measurement time differential information Δt, that is, a time difference between the battery information acquisition time as a reference and the battery information acquisition time of another battery module (10) among the received battery information acquisition times, for each battery module (10). A measurement time correction unit (115) of each battery module (10) corrects a measurement time by the measurement time differential information Δt, using the measurement time differential information Δt received from the relay (20) to adjust the battery information acquisition time of each battery module (10) to the same time.

A wireless battery management system manages at least one battery unit, and the system includes at least one battery tester and a wireless terminal apparatus. The at least one battery tester is electrically connected to the at least one battery unit. The wireless terminal apparatus includes a wireless communication unit, a display unit, and a user interface. The wireless communication unit provides a wireless communication protocol to be wirelessly connected to the battery tester. The user interface is displayed on the display unit and operates an application program of the wireless terminal apparatus. The application program is executed by the wireless terminal apparatus to provide a test and monitor function to control the battery tester testing and monitoring the battery unit correspondingly connected to the battery tester. Accordingly, readability of the battery test results and convenience of monitoring and sharing the battery test results are increased.

One aspect of the present disclosure is an inspection apparatus of a battery pack for an on-site electric apparatus, which comprises a coupler, a discharger, a changer, a discharge performing device, a voltage value detector, and a calculator. The changer detects one of a nominal voltage value of the battery pack coupled to the coupler and a voltage value of a battery in the battery pack, and reduces a discharge time of the battery and/or a discharge current value of the battery as the detected value is larger.