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| Number | Title | Issue Date |
| 5631540 | Method and apparatus for predicting the remaining capacity and reserve time of a battery on discharge A highly accurate apparatus and method of predicting remaining capacity Q and reserve time t of a discharging battery to a selected end voltage is determined by an arrangement considering the open circuit voltage, battery voltage, battery temperature and ... | 05/20/1997 |
| 5627448 | Electric vehicle charging connector assembly An electrical connector assembly used for charging an electric vehicle includes a power source side connector and a vehicle side connector. The power source side connector is detachably connected to the vehicle side connector mounted on the body of an ele... | 05/06/1997 |
| 5563495 | Charging circuit with battery charge monitor circuit A charging circuit charges a nickel-cadmium battery by means of a constant current source. A resistor, diodes and a tantalum capacitor are connected between an output terminal of the charging circuit and a ground potential. A junction between the capacito... | 10/08/1996 |
| 5563491 | Combined parking meter and electric-vehicle battery charger with remote status receiver A combined parking meter/battery charger station includes a detachable remote receiver to inform the vehicle operator of charge-level status and other information. Upon sufficient payment or credit, the remote receiver is released so that it may be carrie... | 10/08/1996 |
| 5561360 | Battery cycle life improvements through bifurcated recharge method A two part battery recharge method first introduces stepped charge current to the battery to restore a majority of energy to a deeply discharged battery. Thereafter, relatively low frequency periodic charge currents and discharge currents interspersed wit... | 10/01/1996 |
| 5561361 | Computer power supply and battery recharging system A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charg... | 10/01/1996 |
| 5561359 | Discharge path for a battery compartment of an electric vehicle Concentration of hydrogen gas generated during a process of electrically recharging a battery of an electric vehicle is maintained by discharging the hydrogen gas during the process. An electric fan is installed inside a control unit box for accommodating... | 10/01/1996 |
| 5559420 | Electricity supply unit trailer for electric vehicles A power pack of batteries are enclosed in an encasement for protection and air-cooling. The encased batteries ride on wheels, and keep supplying power to an electric vehicle while attached to it. The unit can even generate additional electricity extending... | 09/24/1996 |
| 5557190 | Battery recharging system with signal-to-noise responsive falling voltage slope charge termination The falling voltage slope charge termination routine is performed during intervals of the charging cycle in which signal-to-noise ratio is comparatively high. The falling voltage slope charge termination technique is automatically disabled or rendered les... | 09/17/1996 |
| 5554920 | Rechargeable battery charging method A rechargeable battery is supplementary charged after peak battery voltage is detected. The time interval for supplementary charging is variable and set as a function of the time to peak voltage or charging current. The longer the charging time or the hig... | 09/10/1996 |
| 5550454 | Charging regime for secondary lithium batteries A method for extending the cycle life of a solid, secondary lithium electrochemical cell is disclosed. The method increases the ability of an electrochemical cell to retain at least one-half of its initial charge capacity over many charge-discharge cycles... | 08/27/1996 |
| 5550452 | Induction charging apparatus The induction charging apparatus has a power source unit and a device unit which can be detachably coupled to the power source unit. The power source unit has a first casing having one end opened, a primary coil provided in the first casing, an oscillator... | 08/27/1996 |
| 5545969 | Battery residual capacity displaying system with discharged electrical quantity computation section A system for displaying the residual capacity of a secondary battery so as to update the battery capacity when the battery discharges from its full charged condition to a predetermined voltage level, in which this predetermined voltage is selected to be s... | 08/13/1996 |
| 5545966 | Air/liquid cooled metallic turn for high frequency high power charging transformers Heat exchanger that are also outer turns of secondary windings of a transformer for use in a charge port of battery charging apparatus. The outer turns may have any shape or thickness, may be air or liquid cooled, or may be vapor changers (heat pipes). Ot... | 08/13/1996 |
| 5543701 | Electrical storage cell polarization controller In order to extend the useful life of electrical storage battery cells under float voltage charge it is advisable to maintain the polarization of the positive plates of the cell relative to a reference electrode in the cell at a predetermined level. This ... | 08/06/1996 |
| 5541492 | Method for charging a multiple voltage electrochemical cell A method (200) of charging a multiple voltage battery is disclosed. The multiple voltage battery is characterized by a preselected operating voltage and a charge profile curve having at least two occurrences of the slope thereof being substantially zero. ... | 07/30/1996 |
| 5541490 | Computer power supply system A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charg... | 07/30/1996 |
| 5537390 | Device for detecting residual capacity of secondary battery A secondary battery control device includes a secondary battery section, a current converting section for converting current inputted or outputted to the secondary battery section from direct current to alternating current or vice versa, and a charge and ... | 07/16/1996 |
| 5534765 | Battery with memory for storing charge procedure A battery charger system (100) is provided which includes a charger (110) for supplying charge current and voltage and a battery (120) having a memory (122) for storing charge parameters. The charge parameters comprise battery related information instruct... | 07/09/1996 |
| 5532572 | Storage capacitor power supply A long-lived, lightweight, and quickly and precisely charged storage capacitor power supply capable of stably supplying electric power to a load. The power supply has a capacitor block consisting of capacitors connected in series, in parallel or in any co... | 07/02/1996 |
| 5530337 | Battery cluster charger having a backup charging system A battery cluster charger has a plurality of charging circuits for charging a plurality of battery packs. When one of the charging circuits suffers a failure and cannot charge a corresponding battery pack, it is replaced with another of the charging circu... | 06/25/1996 |
| 5530335 | Battery regulated bus spacecraft power control system A system for supplying d.c. power to an electrical load, in which such load includes a rechargeable battery, is characterized by a plurality of power sources connected in common to the electrical load, wherein the current generated by the multiple power s... | 06/25/1996 |
| 5528122 | Battery voltage equalizer circuit A battery equalizer for equalizing the voltage on series connected batteries synchronously switches the opposite ends of a tapped autotransformer in alternately reversing connection to the distally opposite terminals of the battery by alternately turning ... | 06/18/1996 |
| 5525890 | Battery unit and battery energy billing method A battery unit of a cartridge type for use as a power supply for electric motorcars, broadcasting apparatus and the like comprises a battery, a monitoring unit for monitoring the condition of the battery and storing information about the battery, a displa... | 06/11/1996 |
| 5525893 | A.C. line connected battery charger A battery charging circuit device (10) includes a rectifier (16) and current controller (44) for directing current away from the battery (30). The rectifier (16) provides a current curve which is controlled by the current controller (44) so as to prevent ... | 06/11/1996 |
| 5525892 | Pulsed battery rejuvenator having variable trailing edge shaped pulses A battery rejuvenator circuit for use in conjunction with automatic start/stop battery generators. The rejuvenator circuit generates a positive voltage pulse train (characterized by a fast rise time spike followed by a non-uniform hump-shaped trail-off) t... | 06/11/1996 |
| 5523668 | NiCd/NiMH battery charger A battery charging system and method of operating the system is provided which can charge either NiCd and/or NiMH batteries with significant permanent recombinant capacity sufficient to permit cell charge completion, as well as charge maintenance, in an a... | 06/04/1996 |
| 5523667 | Alkaline battery charger and method of operating same Apparatus and methods for recharging various types of battery cells are enclosed involving alternating periods of charging and discharging of the cells, a reference charge cut-off voltage, a comparator for comparing cell voltage with cut-off voltage, and ... | 06/04/1996 |
| 5519302 | Battery charger which suspends charging according to a voltage drop and restarts charging according to battery temperature By sensing battery voltage and temperature, a battery charger fully charges a battery even when a load is attached during charging. A control circuit suspends charging by detecting a change in battery voltage near a peak voltage. A charge restart section ... | 05/21/1996 |
| 5514946 | Battery pack including static memory and a timer for charge management A battery pack for a computer system including static memory to maintain battery operating parameters and charge information, a real time clock (RTC) for measuring periods of non-use of the battery and a communication circuit to exchange the battery infor... | 05/07/1996 |
| 5514945 | Battery charging systems A battery management chip which controls charging and discharging currents of a rechargeable battery. Another significant teaching of the presently preferred embodiment is a battery manager integrated circuit which includes an on-chip bandgap voltage refe... | 05/07/1996 |
| 5510691 | Modular power supply and modular interconnect system for portable electronic equipment The modular battery recharger and power distribution system for notebook and lap top computers of the present invention encompasses both an apparatus and method enabling the use of as many standardized structures as is possible to construct a wide variety... | 04/23/1996 |
| 5508600 | Method for displaying a charge level of a battery A method for displaying a charge level of a battery includes the steps of (1) displaying the charge level of the battery in a first manner during battery charging, and (2) displaying the charge level of the battery in a second manner which is different th... | 04/16/1996 |
| 5508597 | Quick exchange battery apparatus for battery powered vehicles and method therefor An apparatus for storing and changing battery packs from a battery powered vehicle. The battery powered vehicle drives toward a light source which aligns the battery powered vehicle with the apparatus. The apparatus is moved in a horizontal plane to a pos... | 04/16/1996 |
| 5506488 | Rechargeable power pack for use in devices powered by multiple batteries A rechargeable power pack is shaped and dimensioned to be inserted in the battery compartment of an electrical device. The top of the power pack is exactly symmetrical with the battery compartment cover which it replaces. The power pack houses rechargeabl... | 04/09/1996 |
| 5504411 | Battery charger contact protection circuit A battery charger contact protection circuit (10) including a metal oxide field effect transistor (16) is provided. The battery charger contact protection circuit (10) adds the advantages of reducing heat, reducing cost, and providing flexibility in the c... | 04/02/1996 |
| 5502366 | Battery pack coupler for camcorder with sliding lever A battery pack coupler for a camcorder including a plurality of guide holes formed on a battery-attaching plate and guide ribs formed on the battery-attaching plate, all operating lever in which hooking pieces are provided on the inner surface of the batt... | 03/26/1996 |
| 5500584 | Battery charging method and apparatus using initial charging step with gradually increasing charging current, quick charging step with large charging current and final charging step with decreasing charging current A battery charging method for charging a battery such as a lead acid storage battery quickly, and a battery charging apparatus used in carrying out the battery charging method, includes an initial charging process between times 0 to t1, a quick charging p... | 03/19/1996 |
| 5498949 | Rechargeable device with operational inhibit during recharging A rechargeable photographic camera includes an interlock circuit that automatically inhibits operation of the camera flash when the camera is mated with a charging cradle, regardless of the condition of a manual on-off flash switch. The rechargeable batte... | 03/12/1996 |
| 5499234 | Method for recharging flooded cell batteries Maintenance free flooded electrolyte battery cycle life is extended by controlling charge acceptance and gassing during recharge. Charge acceptance is improved by periodically discharging the battery during a portion of the recharge which removes surface ... | 03/12/1996 |
