An apparatus for charging a plurality of series connected battery cells includes first and second input terminals for providing a charging voltage to the plurality of series connected battery cells. A transformer includes a primary side associated with the...

Charging a storage battery requires a charging current (10) which is applied to the battery to be charged and when the battery voltage (12) exceeds a given voltage value (U1) a pulse charge takes place, in which a charging current is for a given period of ...

The present invention relates to a battery pack having a function for calculating a remaining capacity of a battery cell that can be charged. When a calculated capacity integrated value Y is smaller than a maximum capacity integrated value Ym, a microcompu...

A secondary battery 101 of the present invention is comprised such that a heat-sensitive element 133 which varies in resistance value due to change of temperature is not placed on a path through which a charge or discharge current flows into or out of a st...

A power circuit includes a linear voltage control block 5 for stepping down a charged voltage of a power assist capacitor to a predetermined voltage value within an operating voltage range of a load when an output voltage of a power supply in the form of a...

It is known that reforming implantable defibrillator capacitors at least partially restores and preserves their charging efficiency. An industry-recognized standard is to reform implantable capacitors by pulse discharging the connected electrochemical cell...

Storage/discharge device where the low impedance current pool compartment is meant for application in common primary cell or secondary rechargeable cell or fuel cell, or still in a capacitor or super capacitor, otherwise similar charging/discharging device...

A battery pack mounted to a predetermined apparatus to permit supply and output of power of a secondary battery cell between the battery pack and the apparatus, comprising: a plurality of field effect transistors for stopping charge or discharge current in...

A battery pack is formed by serially connecting a plurality of cells, that are individually constructed as rechargeable batteries. Charging and discharging of this battery pack are controlled such that, the proportion of discharge current with respect to t...