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| Number | Title | Issue Date |
| 5300874 | Intelligent power supply system for a portable computer An intelligent power supply system for a portable computer, the computer having a central processing unit (CPU), and being operable in response to power supplied from at least two chargeable batteries or an alternating current (AC) adapter, includes means... | 04/05/1994 |
| 5283511 | Rechargeable battery manager Apparatus and method for conditioning batteries such as those of the nickel-cadmium type for which deep discharge prior to recharge is desirable. Mechanical programming plates having different patterns of apertures for batteries of different characteristi... | 02/01/1994 |
| 5274319 | Rechargeable battery manager An apparatus and method for conditioning batteries incorporates a programming device having different signatures for batteries of different characteristics. When a battery is to be conditioned, one of the programming devices representing the characteristi... | 12/28/1993 |
| 5218287 | Lead battery assembly adapted to be charged by a charger for a nickel-cadmium battery A lead battery assembly including a lead battery, a voltage-detecting circuit used to detect the voltage of the lead battery and an automatic voltage-charging circuit, these circuits being connected to the lead battery and contained together with the lead... | 06/08/1993 |
| 5200690 | Quick charge control apparatus and control method thereof A apparatus for quick charging either a Nickel-Cadmium battery or a Nickel-Metal hydride battery. An adaptor/charger is comprised of a constant current circuit for maintaining a constant charging current, a switching circuit for switching a current value ... | 04/06/1993 |
| 5172043 | Energy using device A battery powered energy-using device is disclosed which operably distinguishes between batteries having standard and non-standard terminal configurations. The battery compartment in the device is provided with a terminal having first and second insulated... | 12/15/1992 |
| 5164652 | Method and apparatus for determining battery type and modifying operating characteristics A battery type detector for battery-using and battery-charging equipment is disclosed. Operational characteristics of the using and charging equipment are modified in accordance with the battery type detected.... | 11/17/1992 |
| 5162721 | Electronic system to discriminate a plurality of power sources A multipower type electronic system discriminates the kind of power source connected to it. A detection voltage and/or a detection voltage timing interval is set on the basis of the discriminated type of power source and a predetermined display is execute... | 11/10/1992 |
| 5160880 | Method and apparatus for charging and testing batteries An apparatus for charging and testing a rechargeable battery is adapted to determine certain conditions, including defect and characteristics, of the battery. The apparatus defects caused by sulfated cells, short circuited cells, and mismatched cells, and... | 11/03/1992 |
| 5111128 | Battery identification apparatus A battery comprises a housing having at least one rechargeable cell within the housing, wherein the cells have a predetermined characteristic. Magnetized elements within the housing provide information to a charger, wherein the arrangement and number of t... | 05/05/1992 |
| 5038093 | Rechargeable cell terminal configuration and charging device A charger for charging a rechargeable electrochemical cell including: a first conductive terminal having a central opening therein and a first contact end, the first conductive terminal connected to circuitry capable of providing charging current at a fir... | 08/06/1991 |
| 5017856 | Battery charging system A battery charging system including a battery of one chemistry type and a battery charger for a different battery type is disclosed. If a battery over-discharge condition or if an electrochemical cell imbalance is detected within the battery, the battery ... | 05/21/1991 |
| 4876495 | Apparatus and method for charging and testing batteries This invention relates to a method for charging a rechargeable battery especially lead-acid batteries. In this method, the open circuit voltage of the battery is measured and the minimum number of cells is estimated from this value. The battery is then ch... | 10/24/1989 |
| 4849682 | Battery charging system A system for sequentially charging a plurality of batteries initially interrogates each battery to determine the battery type and the level of charge. The charging system prioritizes the batteries to be charged from most to least fully charged and charges... | 07/18/1989 |
| 4800328 | Inductive power coupling with constant voltage output A constant voltage inductive power coupling for magnetically transferring electrical power from a power source through an air gap to a load comprising a first electromagnetic inductor connected to a power source to generate a shaped alternating magnetic f... | 01/24/1989 |
| 4751452 | Battery operated power wrap tool A portable power tool for forming wire wrap type connections includes an electric motor, a torque transmitter and a casing for enclosing the electric motor and the torque transmitter. Removably mounted to the casing is a battery pack. The battery pack mou... | 06/14/1988 |
| 4746852 | Controller for battery charger A controller for a battery charger terminates battery charging operation as a function of a time derivative of measured battery voltage. The controller has analog and digital embodiments. A controller with means for determining a time derivative of the me... | 05/24/1988 |
| 4645996 | Rechargeable battery and electrical circuit for charging thereof An electrical circuit is provided which is operable in a first mode to deliver electrical energy to the load of an energy-using device and to a rechargeable battery for charging thereof. The circuit is operable in a second mode to deliver energy to the lo... | 02/24/1987 |
| 4628243 | Battery charging system having means for distinguishing between primary and secondary batteries A battery charging system is provided including a charger and a rechargeable battery of "standard" size and configuration. The rechargeable battery bears a special indicia that is sensed by the charger as a precondition to enabling the charging circuit of... | 12/09/1986 |
| 4628242 | System for charging a rechargeable battery A charging system is provided for use in an energy-using device operable from an external source of A-C power and from either batteries of either the rechargeable or non-chargeable type. The charging system effects charging of batteries of the rechargeabl... | 12/09/1986 |
| 4602202 | Universal connector for rechargeable and non-rechargeable batteries A universal connector for use with rechargeable and nonrechargeable batteries having conventional terminals includes switching means for inherently permitting product energization from both types of batteries while connecting only a rechargeable battery t... | 07/22/1986 |
| 4577145 | Charging system having electromagnetic field means for distinguishing between primary and secondary batteries A battery charging system is provided for charging a rechargeable batteries and for distinguishing the rechargeable battery from a non-rechargeable battery. The charging system establishes an electromagnetic field proximate the battery. A circuit within t... | 03/18/1986 |
| 4577144 | Battery charging system including means for distinguishing between rechargeable and non-rechargeable batteries A battery charging system is provided which distinguishes between primary and secondary batteries by sensing a charging or discharging parameter of a battery placed into the system. A sensing means is included in the system which senses the value of at le... | 03/18/1986 |
| 4489268 | Rechargeable battery with separate charging terminal contact ring A generally cylindrical rechargeable battery is provided leaving a pair of power terminals for delivering energy to an energy-using device. The battery further includes a charging terminal contact spaced apart from the power terminals and extending substa... | 12/18/1984 |
| 4382219 | Arrangement consisting of a battery handle for electro-optical diagnostic instruments, of a charger and of a storage cell An improved battery handle system which provides for safe use of either a rechargeable storage cell or non-rechargeable batteries. This system comprises a battery handle adapted to hold the storage cell, having a positive pole adapted to interact with the... | 05/03/1983 |
| 4140957 | Calculator driving and battery pack recharging circuit A circuit to conveniently and safely drive an electronic calculator from a source of ac power or, alternately, from either one of a plurality of disposable batteries or a unique, rechargeable battery pack. The present circuit includes an arrangement of co... | 02/20/1979 |
| 4006396 | Universal battery charging apparatus Battery charging apparatus for charging batteries having different optimum charging rates, and wherein there is included in the same housing with the battery an electrical element having a characteristic related to a predetermined charging rate of the bat... | 02/01/1977 |
