GB2242083A - Rechargeable battery pack for hand portable radio telephone - Google Patents

Rechargeable battery pack for hand portable radio telephone Download PDF

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Publication number
GB2242083A
GB2242083A GB9105573A GB9105573A GB2242083A GB 2242083 A GB2242083 A GB 2242083A GB 9105573 A GB9105573 A GB 9105573A GB 9105573 A GB9105573 A GB 9105573A GB 2242083 A GB2242083 A GB 2242083A
Authority
GB
United Kingdom
Prior art keywords
battery
telephone
cells
resistor
identifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9105573A
Other versions
GB2242083B (en
GB9105573D0 (en
Inventor
Mark Powell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Mobile Phones UK Ltd
Original Assignee
Technophone Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technophone Ltd filed Critical Technophone Ltd
Publication of GB9105573D0 publication Critical patent/GB9105573D0/en
Publication of GB2242083A publication Critical patent/GB2242083A/en
Application granted granted Critical
Publication of GB2242083B publication Critical patent/GB2242083B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3883—Arrangements for mounting batteries or battery chargers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The telephone 1 is adapted to have removably connected thereto a compact, rechargeable battery 2 selected from art least two different battery types, e.g. high and low energy versions or of different chemical and/or physical composition. The battery (2) is provided with a resistor 7 identifying the battery type and the telephone is provided with a facility 10, 11, 13 responsive to the value of the resistor 7 for determining the type of battery present. Thus it can be arranged that a suitable charging regime is adopted compatible with the battery type, and the telephone may also be rendered inoperative if the resistor 7 is absent or does not matched an expected value. The battery comprises a plurality of elongate rechargeable cells 3 disposed in side-by-side relationship within a housing 5 adapted to enclose the cells intimately in the lateral direction and providing an internal cavity 5a adjacent the ends of the cells accommodating the identifying resistor 7. The resistor 7 may be mounted on a printed circuit board together with a fuse 14 end a temperature sensing thermistor 6. <IMAGE>

Description

BATTERY POWERED RADIO TELEPHONE This invention relates to a hand portable
radio telephone adapted to have removably connected thereto a battery selected from at least two different battery types.
It is nowadays common practice for rechargeable batteries to be used in hand-held radio telephones, such as cellular telephones. However, particularly because of their transmission capability, portable cellular telephones consume a significant amount of power necessitating relatively frequent recharging of the batteries.
High energy batteries are therefore sometimes used when a longer interval is desirable between re-charging. However, the higher the energy of the battery, the heavier and more bulky it tends to be. It is particularly convenient therefore if the telephone is adapted to use interchangeably either a high or low energy battery selected by the user depending on the particular circumstances under which he intends to use the telephone. Hence, a low energy battery would be suitable if the user intends to use the telephone for relatively few short telephone calls over a given period, whereas a high energy battery may be more suitable if it is intended to make longer or m ore calls over an extended period.
A drawback with using different battery types is that they may require different recharging regimes which, if not adhered to, may adversely affect performance and/or the overall useful life time of the batteries.
4 European patent application EP-A-0,340,794 discloses a hand portable radio telephone adapted to have removably connected thereto a battery comprising a plurality of rechargeable cells, the battery being selected from at least two different types of battery, said battery further comprising means for identifying the battery type, wherein the telephone comprises means responsive to said identifying means for determining the type of battery connected thereto, the battery further comprising a plurality of rechargeable cells disposed within a housing.
British patent application GB-A-2,219,151 discloses as prior art battery packs which use as identifying means resistors, diodes or the like.
According to a first aspect of the present invention there is provided a hand portable radio telephone adapted to have removably connected theretoa battery selected from at least two different types of battery, said battery comprising means for identifying the battery type, wherein the telephone comprises means responsive to said identifying means for determining the type of battery connected thereto, the battery further comprising a plurality of rechargeable cells disposed within a housing, characterized in that the individual cells are elongate and disposed in side-by-side relationship, in that the housing is adapted to enclose said cells intimately at least in the lateral direction, and in that the housing provides an internal cavity adjacent the ends of said cells, the identifying means being disposed within said cavity.
---ii A radio telephone in accordance with the invention is capable of detecting the type of battery connected thereto and therefore can respond accordingly, especially with regard to the mode of recharging used. A rechargeable battery in accordance with the invention may nevertheless be particularly compact and relatively straightforward to manufacture. Such a battery is therefore eminently suitable for hand portable telephone applications.
It is noted here that the different types of battery may be low and high energy versions of batteries having essentially the same chemical and physical composition or they may alternatively be batteries having different chemical and/or physical composition.
The radio telephone may be adapted to become inoperative if it detects an unrecognisable or unidentified battery.
Suitably the battery type determining means includes means for deriving a signal indicative of the battery type. Specifically, the determining means may include means for generating a reference signal, in which case the identifying means (in the battery) is adapted to modify the reference signal to provide the signal indicative of the battery type.
The battery identifying means may, for example, be formed by a single resistor. the resistance value of which represents the battery type. The battery determining means in the telephone may also comprise a resistor of known resistance value connected to a known voltage source. When the battery is connected to the telephone these two resistors are arranged to be i connected together in the manner of a potential divider whereby the voltage at the junction of the two resistors is indicative of the battery type. Therefore, means are also provided for sensing the voltage between these two resistors.
According to a further aspect of the present invention there is provided a battery for use in a hand portable radio telephone in accordance with the first aspect of the invention, comprising a housing, a plurality of rechargeable cells disposed within said housing, and means for identifying the battery type, characterised in that the individual cells are elongate and disposed in side-by-side relationship, the housing is adapted to enclose said cells intimately at least in the lateral direction, andthe housing provides an internal cavity adjacent the ends of said cells, the identifying means being disposed within said cavity.
In a particularly compact implementation of a battery in accordance with the invention the individual cells are substantially rectangular and so occupy minimal volume when configured in a close packed arrangement.
In a preferred embodiment the battery includes means for electrical connection to the portable telephone, the connecting means comprising connectors associated respectively with the positive and negative terminals of said cells and with the identifying means, the connectors being mounted in a unitary insulating member. A further connector associated with means for generating a temperature indicative signal may also be mounted in the same unitary insulating member. Providing the individual connectors in a common insulating member facilitates assembly of the battery.
1 1 An embodiment of the invention will now be described by way of example. with reference to the accompanying drawings in which:- Figure 1 is a schematic illustration of a radio telephone shown separated from an interchangeable battery in accordance with the invention, and Figure 2 is a perspective view of the radio telephone in Figure 1, with the battery connected to the telephone.
The apparatus shown in Figures 1 and 2 is a cellular portable telephone 1 comprising a rechargeable battery pack 2. The battery pack 2 may for example contain six identical series-connected NiCd cells 3 each having a nominal voltage of 1.2V. The battery pack, therefore, has a nominal voltage of 7.2V. The capacity of the cells is typically 600 mAh for a regular battery pack, whereas in the case of a high energy version the capacity may be, for example. 850 mAh.
The individual cells are rectangular in cross-section and are arranged side-by-side in close packed configuration to yield a particularly compact battery pack 2. In an alternative arrangement the cells may be arranged in two rows of three cells. for example. In any case the cells 3 and associated circuitry (described hereinafter) are intimately enclosed in a housing 5.
The battery housing 5 comprises a socket having four connectors 4a, 4b. 4c, 4d arranged in a straight line and mounted in a unitary insulating block 4. Socket 4a a 1:
is connected to the positive terminal of the cells 3 via a fuse 14 and socket 4d is connected to the negative terminal of the cells 3. Socket 4b is connected to the negative terminal (effectively earth) via a thermistor 6 located in the close proximity of the cells 3 so that the signal appearing on terminal 4b is indicative of the local temperature of the battery.
Socket 4c is connected to the negative terminal of the cells 3 (effectively earth) via a resistor 7. The value of the resistor indicates the type of battery being used. For example, the Applicant has used a resistor of 47,000 ohms to identify a regular-energy battery having a capacity of 600 inAh, and a resistor of 68,000 ohms to identify a highenergy battery having a capacity of 85U mAh.
The resistor 7, fuse 14 and connector block 4 are accommodated within a cavity 5a provided in the housing 5 adjacent the ends of the cells 3 nearest the telephone 1, further promoting a compact battery arrangement. The connector block 4 extends into a complementary aperture in the housing 5. To facilitate assembly of the battery the resistor 7, the fuse 17 and the connector block 4 may be mounted on a small, common printed circuit board within the cavity 5a. The thermistor 6 is ideally mounted directly adjacent the cells 3 rather than on the circuit board.
The battery 2 is capable of being connected to the telephone 1 as indicated by the arrow in Figure 1. Figure 2 shows the battery 2 connected to the telephone 1. The battery nay be fitted by any suitable mechanical means, for example a battery 2 may be arranged to fit slideably onto the telephone 1. The 11 k 11 telephone comprises an electrical connector 8 comprising protruding conductive pins 8a. 8b, 8c, 8d which engage respectively in the connectors 4a, 4b, 4c, 4d of socket 4 in the battery 2 when the battery is fully inserted on the telephone.
For the sake of clarity the positive and negative terminals Sa and 8d of connector 8 are shown without any further connections. of course in practice these terminals would be connected to the main telephone. circuitry for providing power thereto. It is noted here that the telephone 1 also includes a transceiver and all the other features conventionally found in a cellular telephone. but which also for the sake of clarity are not shown in the Figures. Also, since these aspects of the telephone are not relevant to the instant invention no further details will be given here, except to reiterate that the circuitry in the telephone is connected to the terminals 8a and Bd.
Terminal 8b connects with terminal 4b on the battery and, as mentioned above, the signal appearing thereon is indicative of the local temperature in the circuitry of the battery 2. This signal is applied to a microprocessor 9 within the telephone, which may use this temperature information to compensate for values of the battery voltage monitored during re-charging to give a more accurate indication of the charge state of the battery.
Terminal Sc of the telephone. which contacts connector 4c of the battery, is connected within the telephone 1 to a voltage source 10 generating a known voltage of, for example +5V via a resistor 11 having a known value of, for example, 180,000 ohms. Thus when the battery 2 is connected to the telephone the resistor 11 in the telephone is connected in series with the resistor 7 in the battery 2 in the manner of a potential divider. Indeed, the voltage at the junction 12 between the two resistors 10 and 7 indicates the value of the resistor 7 in the battery and hence is representative of the type of battery connected. For example with the values mentioned herein, when a regular-energy battery 2 is in use the voltage at junction 12 will be 1V, and when a high energy battery is used the voltage at junction 12 will be 1.5V.
A voltage sensor 13 is used to monitor the voltage at junction 12 and to feed a signal indicative thereof to microprocessor 9. The microprocessor may respond particularly for example during recharging to ensure that the battery is recharged in accordance with a mode compatible with the battery type. To this end the telephone may be adapted to be coupled to a charging unit capable of operating in different charging modes in response to a control signal generated by the telephone, and managed by the microprocessor, as described and claimed in our co-pending British patent application No. 9007683.7 (Our Ref PAT 90005).
Additionally or alternatively the microprocessor 9 may respond by rendering the whole telephone inoperative if a battery is used which does not include an identifying resistor, of if the value of such a resistor does not match an expected value i.e. indicating an unauthorised battery.
in view of the foregoing description, it will be evident to a person skilled in the art that various modifications may be made within the scope of the
1 invention. In particular, the telephone may be capable of operating with more than two different battery types in which each type would be identified by its own unique resistance value. Furthermore the different battery type need not merely be a battery having a different electrical capacity. but may indeed have a different chemical or physical composition and therefore require a different charging regime which can thus be provided in response to the identifying signal sensed within the telephone.
- 10

Claims (13)

1. A hand portable radio telephone adapted to have removably connected thereto a battery selected from at least two different types of battery, said battery comprising means for identifying the battery type, wherein the telephone comprises means responsive to said identifying means for determining the type of battery connected thereto, the battery further comprising a plurality of rechargeable cells disposed within a housing, characterized in that the individual cells are elongate and disposed in side-by-side relationship, in that the housing is adapted to enclose said cells intimately at least in the lateral direction, andIn that the housing provides an internal cavity adjacent the ends of said cells, the identifying means being disposed within said cavity.
2. A hand portable radio telephone as claimed in claim 1, wherein the determining means includes means for generating a predetermined signal, and the identifying means is adapted to modify the predetermined signal to provide a signal indicative of the battery type.
3. A hand portable radio telephone as claimed in claim 1 or claim 2. wherein the identifying means comprises a first resistor. the resistance thereof being representative of the battery type, and the battery type determining means comprises a second resistor connected to a voltage source, said first and second resistors being connected in series when the battery is connected to the telephone.
i 1 1
4. A hand portable radio telephone as claimed in claim 3, wherein the battery type determining means further comprises means for sensing the voltage between said first and second resistors.
5. A battery for use in a.hand portable radio telephone, comprising a housing, a plurality of rechargeable cells disposed within said housing, and means for identifying the battery type, characterised in that the individual cells are elongate and disposed in side-by-side relationship, the housing is adapted to enclose said cells intimately at least in the lateral direction,'and the housing provides an internal cavity adjacent the ends of said cells, the identifying means being disposed within said cavity.
6. A battery as claimed in claim 5, wherein the Identifying means comprises a resistor, the resistance thereof being representative of the battery type.
7. A battery as claimed in claim 5 or claim 6, further including means for generating a signal indicative of the temperature in the locality of the rechargeable cells.
k
8. A battery as claimed in any of claims 5 to wherein the rechargeable cells are substantially rectangular.
9. A battery as claimed in any of claims 5 to 8, including means for electrically connecting the battery to the portable telephone, the connecting means comprising connectors associated respectively with the positive and negative terminals of said cells and with the identifying means, the connectors being mounted in a unitary insulating member.
10. A battery as claimed in claim 9 when dependant on claim 7, the connecting means comprising a further connector associated with the means for generating a temperature indicative signal, said further connector also being mounted in said unitary insulating member.
11. A battery as claimed in claim 9 or claim 10, wherein the connectors are arranged in a straight line in said unitary insulating member.
12. A hand portable telephone adapted to have removably connected thereto a battery selected from at least two distinct battery types, substantially as herein described with reference to Figures 1 and 2 of the accompanying drawings.
13. A battery for use in a hand portable telephone, substantially as herein described with reference to Figures 1 and 2 of the accompanying drawings.
Published 1991 at The Patent Office. Concept House. Cardiff Road, Newport. Gwent NP9 IRH. Purther Copies maybe obtained from Sales Branch. Unit 6. Nine Mile Point. Cwmfelirifhch. Cross Keys. Newport. NPI 7HZ. Printed by Multiplex techniques ltd. St Marv Cray Kent.
GB9105573A 1990-04-05 1991-03-15 Battery powered radio telephone Expired - Lifetime GB2242083B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9007681A GB2239567A (en) 1990-04-05 1990-04-05 Portable radio telephone useable with batteries of different types; battery charging

Publications (3)

Publication Number Publication Date
GB9105573D0 GB9105573D0 (en) 1991-05-01
GB2242083A true GB2242083A (en) 1991-09-18
GB2242083B GB2242083B (en) 1993-01-13

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB9007681A Withdrawn GB2239567A (en) 1990-04-05 1990-04-05 Portable radio telephone useable with batteries of different types; battery charging
GB9105573A Expired - Lifetime GB2242083B (en) 1990-04-05 1991-03-15 Battery powered radio telephone

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9007681A Withdrawn GB2239567A (en) 1990-04-05 1990-04-05 Portable radio telephone useable with batteries of different types; battery charging

Country Status (4)

Country Link
DE (1) DE9103661U1 (en)
FR (1) FR2661296B3 (en)
GB (2) GB2239567A (en)
IT (1) IT1245771B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641089A2 (en) * 1993-08-31 1995-03-01 Nec Corporation Portable radio apparatus having batteries for supplying a plurality of voltages
EP0642202A2 (en) * 1993-08-30 1995-03-08 YAESU MUSEN Co., Ltd. Electronic device, battery pack and charger for the battery pack
WO1997001871A1 (en) * 1995-06-29 1997-01-16 Sierra Wireless, Inc. Battery pack and system for identifying a type of battery pack in an electrical apparatus
US5701597A (en) * 1994-05-12 1997-12-23 Oki Electric Industry Co., Ltd. Portable electronic device and method for supplying current to different loads
GB2315619A (en) * 1996-07-17 1998-02-04 Nec Corp Preventing charging of primary cells
US7835534B2 (en) 2003-10-14 2010-11-16 Robert Bosch Gmbh Battery charging jobsite lunchbox
US8604752B2 (en) 2003-10-14 2013-12-10 Robert Bosch Gmbh Portable battery charging and audio unit

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9108178U1 (en) * 1991-07-03 1991-10-24 Linhart, Jirka, 5223 Nuembrecht, De
JPH05160774A (en) * 1991-12-09 1993-06-25 Matsushita Electric Ind Co Ltd Portable telephone set charger on-vehicle
GB9209505D0 (en) * 1992-05-01 1992-06-17 Lucas Ind Plc Battery charge monitoring
JPH06124731A (en) * 1992-08-31 1994-05-06 Toshiba Corp Attachment for external battery connection, battery pack and battery discrimination and control method
US5470255A (en) * 1993-03-23 1995-11-28 The Whitaker Corporation Extended height connector for a battery
BR9405568A (en) * 1993-09-02 1999-09-08 Motorola Inc External power source for connection to electronic device.
JP3095414B2 (en) 1993-09-08 2000-10-03 パシフィック・コミュニケーション・サイエンシーズ・インコーポレイテッド Mobile communication and data terminal with multiple operation modes
CA2146773C (en) * 1993-09-13 1998-08-18 William P. Alberth, Jr. Charge regulator for electronic device and associated method
US5506490A (en) * 1993-11-09 1996-04-09 Motorola, Inc. Method and apparatus for determining external power supply type
DE4440093A1 (en) * 1994-11-10 1996-05-15 Philips Patentverwaltung Hand-held telephone, e.g. Mobile phone
US6334062B1 (en) * 1995-06-07 2001-12-25 Cirrus Logic, Inc. Portable communications and data terminal operating to optimize receipt of both incoming CDPD and AMPS messages
US5737706A (en) * 1995-08-03 1998-04-07 Bell Atlantic Network Services, Inc. Power system supporting CDPD operation
JP3234760B2 (en) * 1995-11-30 2001-12-04 松下電器産業株式会社 Mobile phone equipment
US5656917A (en) * 1995-12-14 1997-08-12 Motorola, Inc. Battery identification apparatus and associated method
JPH09271144A (en) 1996-01-29 1997-10-14 Sony Corp Power supply identifying method, battery pack, and electronic device
SE506757C2 (en) * 1996-07-02 1998-02-09 Ericsson Telefon Ab L M Fuse device for a portable battery operated electrical appliance
GB2316783A (en) * 1996-08-30 1998-03-04 Orbitel Mobile Communications Emergency alarm
US5859522A (en) * 1997-07-16 1999-01-12 Motorola, Inc. Accessory identification apparatus and method
US5925942A (en) * 1997-07-16 1999-07-20 Motorola, Inc. Power supply control apparatus and method suitable for use in an electronic device
JP3947949B2 (en) * 1998-04-06 2007-07-25 ソニー株式会社 Battery packs, battery chargers, and electronic devices that use battery packs
FI980868A (en) * 1998-04-20 1999-10-21 Nokia Mobile Phones Ltd A method of adjusting the power consumption of a mobile station to suit the current source and the mobile station
DE20023631U1 (en) * 1999-08-19 2005-05-19 Makita Corp., Anjo Terminal structure for battery pack, includes alterable number of elastic board formed on receptacle in entry direction of male terminal, for fitting male terminal
GB0305655D0 (en) 2003-03-12 2003-04-16 Renishaw Plc Battery life determination
US7581130B2 (en) 2004-11-12 2009-08-25 Hewlett-Packard Development Company, L.P. Power management system and method
CA2685843C (en) 2007-06-26 2015-08-11 The Coleman Company, Inc. Electrical appliance that utilizes multiple power sources
US8898461B2 (en) * 2011-03-03 2014-11-25 Lenovo (Singapore) Pte. Ltd. Battery authentication method and apparatus
US10678905B2 (en) 2011-03-18 2020-06-09 Lenovo (Singapore) Pte. Ltd. Process for controlling battery authentication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593409A (en) * 1984-04-04 1986-06-03 Motorola, Inc. Transceiver protection arrangement
EP0340794A2 (en) * 1988-05-06 1989-11-08 Nec Corporation Portable apparatus with variable rating battery charger for recharging interchangeable battery packs
GB2219151A (en) * 1988-05-03 1989-11-29 Ullmann Ulo Werk Battery charging

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR204938A1 (en) * 1974-01-18 1976-03-19 Motorola Inc UNIVERSAL APPARATUS BATTERY CHARGER
ZA823763B (en) * 1981-05-29 1983-05-25 Peter Frederick Barker Rechargeable battery system
US4382220A (en) * 1981-07-20 1983-05-03 The Bridgeport Metal Goods Mfg. Co. Rechargeable battery pack and combination thereof with lantern
DE3312600A1 (en) * 1983-04-08 1984-10-11 Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest ARRANGEMENT FOR CAPACITY-RELATED CHARGING OF A BATTERY
US4746852A (en) * 1984-10-29 1988-05-24 Christie Electric Corp. Controller for battery charger
US4861685A (en) * 1988-08-19 1989-08-29 Tien Spencer W H Portable rechargeable battery
US5164652A (en) * 1989-04-21 1992-11-17 Motorola, Inc. Method and apparatus for determining battery type and modifying operating characteristics

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593409A (en) * 1984-04-04 1986-06-03 Motorola, Inc. Transceiver protection arrangement
GB2219151A (en) * 1988-05-03 1989-11-29 Ullmann Ulo Werk Battery charging
EP0340794A2 (en) * 1988-05-06 1989-11-08 Nec Corporation Portable apparatus with variable rating battery charger for recharging interchangeable battery packs

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627449A (en) * 1993-08-30 1997-05-06 Yaesu Musen Co., Ltd. Electronic device, battery pack and charger for the battery pack
EP0642202A2 (en) * 1993-08-30 1995-03-08 YAESU MUSEN Co., Ltd. Electronic device, battery pack and charger for the battery pack
EP0642202A3 (en) * 1993-08-30 1995-05-10 Yaesu Musen Kk Electronic device, battery pack and charger for the battery pack.
US5628054A (en) * 1993-08-31 1997-05-06 Nec Corporation Portable radio apparatus having batteries for supplying a plurality of voltages
EP0641089A3 (en) * 1993-08-31 1995-10-04 Nec Corp Portable radio apparatus having batteries for supplying a plurality of voltages.
EP0641089A2 (en) * 1993-08-31 1995-03-01 Nec Corporation Portable radio apparatus having batteries for supplying a plurality of voltages
US5701597A (en) * 1994-05-12 1997-12-23 Oki Electric Industry Co., Ltd. Portable electronic device and method for supplying current to different loads
WO1997001871A1 (en) * 1995-06-29 1997-01-16 Sierra Wireless, Inc. Battery pack and system for identifying a type of battery pack in an electrical apparatus
GB2315619A (en) * 1996-07-17 1998-02-04 Nec Corp Preventing charging of primary cells
US5847539A (en) * 1996-07-17 1998-12-08 Nec Corporation Electrical charging device with function to prevent erroneous electrical charging
GB2315619B (en) * 1996-07-17 1999-07-07 Nec Corp Electrical charging system
US7835534B2 (en) 2003-10-14 2010-11-16 Robert Bosch Gmbh Battery charging jobsite lunchbox
US8604752B2 (en) 2003-10-14 2013-12-10 Robert Bosch Gmbh Portable battery charging and audio unit

Also Published As

Publication number Publication date
ITMI910903A0 (en) 1991-04-02
GB9007681D0 (en) 1990-06-06
IT1245771B (en) 1994-10-18
GB2242083B (en) 1993-01-13
DE9103661U1 (en) 1991-06-13
GB2239567A (en) 1991-07-03
FR2661296B3 (en) 1992-03-13
ITMI910903A1 (en) 1992-10-02
GB9105573D0 (en) 1991-05-01
FR2661296A3 (en) 1991-10-25

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Expiry date: 20110314