This document generally relates to techniques for adaptively triggering charging notifications for a battery-powered user device. One example includes a method or technique that can be performed on a computing device. The method or technique can include obtaining a battery charge level of a battery of a battery-powered user device and accessing user data for a user of the battery-powered user device. The user data can reflect previous usage sessions of the user with the battery-powered user device. The method or technique can also include predicting a future usage session of the user with the battery-powered user device based on the user data. The method or technique can also include estimating confidence that the battery will last through the future usage session based on the battery charge level and the predicted future usage session. The method or technique can also include triggering a charging notification prior to the future usage session based on the estimated confidence.

An ECU executes a process including the steps of: acquiring parameters; calculating an integrated value Q1 of a charging current when detection of a step is not confirmed; acquiring the temperature of each cell when detection of a step is confirmed; calculating an integrated value Q2 of the charging current until charging is completed; once the charging is completed, calculating a correction factor C; and calculating a full charge capacity.

A battery diagnosis method includes: obtaining diagnosis target information including a target full-cell profile of a battery cell associated with a first electric stimulation; correcting the target full-cell profile to be associated with a second electric stimulation that is different from the first electric stimulation, based on a predetermined overpotential profile; applying a diagnosis logic to a corrected target full-cell profile to determine first diagnosis result information, which is a preliminary diagnosis result for a charge/discharge performance of the battery cell; and determining second diagnosis result information, which is a precise diagnosis result for the charge/discharge performance of the battery cell, based on at least one preliminary diagnosis factor included in the first diagnosis result information, using a factor correction model.

A flexible casing including an opening operable to receive a portable electronic device such as a cell phone, said electronic device including a native receptacle for receiving power and other electronic information. The casing includes a native plug, disposed in an edge of the casing and operable to mate with the native receptacle when the casing is placed over the electronic device. A first receptacle, substantially the same as the native receptacle, is disposed in the casing and electrically coupled to the native plug together with a second receptacle disposed in the casing and electrically coupled to the native plug, wherein electricity from either the first or second receptacle is coupled to the native plug.

Systems and methods are provided that may be implemented to automatically and intelligently re-activate battery cell/s of a battery system after the battery system has been subjected to relatively long term storage with the battery system inactive and unpowered by external power. The disclosed systems and methods may be so automatically implemented once external power is provided to the battery system and the battery system becomes active again. In one example, the disclosed systems and methods may be implemented on a battery-powered information handling system using logic executing on a programmable integrated circuit of a battery system (e.g., battery management unit BMU) of the information handling system and/or at the system level (e.g., such as embedded controller EC) of the information handling system.

A portable hand warmer charging case includes a case body. A placement chamber configured to place a hand warmer unit for charging is provided on the case body. The case body is provided with a first circuit board, a first charging unit, and a first battery. The first battery and the first charging unit are electrically connected to the first circuit board. When the hand warmer unit is placed in the placement chamber, the first circuit board is configured to output electrical energy, which is output by the first battery, from the first charging unit; and the first charging unit is configured to be adapted to a second charging unit on the hand warmer unit for use and transmit the electrical energy output by the first circuit board to the second charging unit on the hand warmer unit.