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7564220 |
Method and electronic circuit for efficient battery wake up charging
A method for efficiently charging a battery. The method includes producing a first signal having a voltage level dependent on the voltage of the battery, comparing the voltage level of the first...
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7518340 |
Method and system for charge rate adjustment to enhance battery cycle life
Methods and systems are disclosed for charge current adjustment to enhance battery cycle life thereby allowing batteries to be charged quickly without accelerating the aging process of the battery....
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7486051 |
Charging and discharging control circuit, and charging type power supply device
A charging and discharging control circuit controls charging and discharging of a secondary battery by monitoring at least one of a voltage across, and an electric current through, the secondary...
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7332892 |
Method for predicting the voltage of a battery
The present invention discloses a method for predicting the voltage of a battery, in particular a vehicle battery. The method according to the invention makes it possible to predict a voltage drop...
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7197487 |
Apparatus and method for estimating battery state of charge
A method for training a support vector machine to determine a present state of charge of an electrochemical cell system includes choosing a training data, preprocessing the training data, finding...
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7193394 |
Method of controlling charge and discharge of secondary battery for automatic guided vehicle
To provide a method of controlling charge and discharge of a secondary battery for automatic guided vehicle that can decide the timing of refresh charge and discharge accurately and minimize the...
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7129675 |
System and method for battery charging
A method for charging a lead acid storage battery to advantageously extend its life is described. The termination of a charging process is based upon an evaluation of the first derivative (dv/dt)...
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6956487 |
Battery charging status indication circuit
This invention includes a circuit for displaying charge status to a user. The circuit includes circuitry for comparing a supply or reference voltage to a cell voltage, circuitry for sensing...
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6844703 |
Battery cell balancing system
A battery cell balancing system ( 12 ) for a battery ( 30 ) having a plurality of cells ( 32 ) is provided. The system ( 12 ) includes a power supply ( 38 ) and a plurality of transformer/rectifier...
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6765368 |
Electrical energy apparatuses, electrical energy conditioning circuits, and electrical supply methods
Power supply apparatuses and methods of supplying electrical energy are provided. According to one aspect, a power supply apparatus includes an electrochemical device configured to store electrical...
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6700383 |
Method of detecting and resolving memory effect
A method of detecting and resolving a memory effect capable of detecting the memory effect with ease and with high precision and resolving even when the vehicle is in motion is provided. A current...
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6700352 |
Dual capacitor/battery charger
A power charger which charges and provide conditioned power from at least one of a super-capacitor and a secondary battery. The type of energy device is user selectable, such that the user can...
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6661201 |
Method for controlling battery charge and discharge
The present invention provides a method for controlling battery charging and discharging in which a battery is charged and discharged such that a SOC (state of charge) value of the battery is...
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6600293 |
Battery control system
A battery control system capable of relatively smoothly canceling memory effects caused to a battery mounted on a hybrid vehicle, while avoiding deterioration of the battery and vehicle...
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6566844 |
Method and apparatus for extending the functionality of a battery
A method to extend the functionality of a battery, the method comprising drawing a current greater than the minimum rejuvenation current from the battery thereby increasing a functionality of the...
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6469473 |
Method and apparatus for using pulse current to extend the functionality of a battery
A method to extend the functionality of a battery, the method comprising drawing power from the battery, and repetitively drawing a current pulse greater than the minimum conditioning current from...
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6465988 |
Charging/discharging control device and method for canceling memory effect in secondary battery
A device and a method are provided in which memory effects can be cancelled by controlling charging and discharging of a secondary battery during driving of a vehicle. When a memory effect...
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6441584 |
Charge maintenance system for lead-acid battery
A charge maintenance system for a lead-acid battery includes a charger, a voltage monitor, and a load/switch series combination, all connectable in parallel across the battery terminals, the switch...
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6433511 |
Method and apparatus for manually reconditioning a battery without a switch
This invention includes an apparatus and method of initiating reconditioning of a rechargeable battery cell without an auxiliary mechanical switch. When a battery is inserted into the charger, the...
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6414465 |
Method and apparatus for charging a lead acid battery
A battery charger for a lead acid battery having a power supply with an input connected to an AC signal and an output connected to the battery. The power supply provides a charge current to the...
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6392385 |
Battery operation for extended cycle life
The present invention provides a method for cycling a battery, containing lithium metal oxide, particularly lithium manganese oxide (LMO) active material, in a cell in a manner which reduces the...
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6380716 |
Condition monitoring of opportunity charged batteries
In a preferred embodiment, a method of condition monitoring of an opportunity charged battery, including: determining length of time the battery has been off-line; determining whether charging of...
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6344729 |
Method and apparatus for reconditioning and charging a battery
A method and apparatus for reconditioning and charging a battery is disclosed. The lead-acid battery rejuvenator apparatus comprises of an oscillator, a frequency divider and a pair of transistors....
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6259231 |
Rapid battery charger
In a method of charging a battery cell, having a positive terminal and a negative terminal, a charging current is applied to the battery cell. A voltage is measured between the positive terminal...
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6252374 |
Apparatus for reconditioning batteries
The invention is a reconditioner for batteries to remove the "memory effect" or "voltage depression", which is caused by the failure to completely discharge a battery before recharging the battery....
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6184650 |
Apparatus for charging and desulfating lead-acid batteries
Apparatus for charging and desulfating lead-acid batteries provides a DC electrical charging current to the battery terminals to charge the battery to a fully charged voltage during a bulk charge...
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6137261 |
Rechargeable battery maintenance and testing system
A battery maintenance and testing system (22) that includes a battery support system (2) that tests, conditions, and charges rechargeable battery packs. The battery support system (22) accommodates...
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6118251 |
Battery depassivation and conditioning method and apparatus
The present invention provides a unique method for safely and effectively moving the passive layer from the anode of a battery, so that the battery will function safely and properly. Batteries that...
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6023418 |
Low voltage polarity correcting DC to DC converter
A DC to DC converter particularly suited for use to boost or reduce the voltage with single battery systems allows insertion of the battery in either polarity through use of a symmetrical...
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5982146 |
Method and apparatus for conditioning battery while external power is applied
A method which may be used to condition a battery. The method includes sensing that the battery needs to be conditioned while an external power source is being used as the source of system power....
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5963017 |
Calibration of the battery device for a portable computer system
A capacity calibration apparatus for the battery of a portable computer system is provided. The computer system includes a main board circuit, a processor unit, a display unit, a power-supply board...
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5942878 |
Method and device for reducing memory effect of battery
According to the invention, the discharge depth representing the ratio of discharged capacity relative to the rated discharge capacity of a battery is divided into a plurality of ranges with each...
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5905363 |
Method for reducing the internal resistance of rechargeable batteries
The invention relates to a method for reducing the internal resistance (R i ) of rechargeable accumulators, in particular nickel-cadmium accumulators, wherein an electric energy source is connected...
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5874824 |
Method of activation treatment of Ni/MH secondary battery by hot-charging
The present invention provides a method of activation treatment of a Ni/MH secondary battery which comprises a step of immersing an electrode or battery in a solution or electrolyte and...
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5826958 |
Apparatus for automatically conditioning rechargeable batteries
A circuit for conditioning a battery having a casing and battery charging terminals for charging the battery from an external power source. The conditioning circuit is preferably contained within...
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5739670 |
Method for diagnosing battery condition
A method for diagnosing the general condition of a battery module in a string of such modules comprising a battery pack monitors voltage, current and temperatures of the modules and battery pack....
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5723971 |
Apparatus for charging a battery for a charge time determined based on the depth of discharge
A charging apparatus for a rechargeable storage battery is disclosed which charges the battery at a constant current. The charging apparatus monitors a variation in voltage of the battery during...
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5712795 |
Power management system
A power management system automatically manages the power to operate a biomedical device, such as an infusion pump containing an internal battery. When external power is available, the management...
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5635815 |
Battery exercising pacer and/or emergency start monitoring system
A battery pacer apparatus and method are configured for extending the life of lead-acid batteries. A high current discharge is applied for a limited time of about 10-40 seconds to remove lead...
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5625291 |
System for exchanging information in a battery mailbox
A system having a battery, a battery support unit, and an electronic device provides for the exchange of information between the battery support unit and the electronic device via a mailbox in...
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5600227 |
Electrical storage battery charger and conditioner
The present invention provides a charging, discharging and conditioning method and apparatus that provides an improved method of breaking in new rechargeable batteries and reconditioning old...
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5475294 |
Charge controller for battery charger
For charging a storage battery, e.g. a nickel-cadmium cell, recharging is conducted after the battery is forcibly discharged while the charge voltage stays in a specified range after a period of...
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5334925 |
Nickel cadmium battery deep cycler device
A device for draining a nickel cadmium or other battery prior to recharging the battery includes first and second input terminals for connecting the device to a battery to be discharged, and first...
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5304916 |
Battery charger
A battery charger is provided for use in electronic devices such as a portable computer. When the electronic device is being powered by an external source of power, such as an AC adapter, the...
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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...
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5223780 |
Mobile telephone battery power supply unit with power detection and discharge circuit
A mobile telephone battery power supply unit consisted of a housing covered with a slide cover to hold an electronic circuit assembly and battery case on the inside. The electronic circuit assembly...
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5196779 |
Battery maintenance system
A battery maintenance system for charging, analyzing, discharging and conditioning of a NiCad battery. The system displays voltage and capacity to determine whether or not a NiCad battery has...
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5182509 |
Conditioning and charging circuit for nickel-cadmium batteries
A conditioning and charging circuit for NiCd battries includes a switch for initially connecting the battery to a discharge resistor to discharge the battery. The battery voltage is monitored...
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5159258 |
Rechargeable battery conditioner unit
A piggyback conditioner unit usable in conjunction with a Ni-Cad battery power pack and a standard charger for the pack, the pack being normally adapted to be seated on and connected to the charger...
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5153496 |
Cell monitor and control unit for multicell battery
A cell monitoring and control circuit for a multicell battery comprises a cell access switch coupled to the cells of the battery for electronically accessing individual cells of the battery and a...
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