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A battery voltage regulation circuit is provided for regulation the charging voltage of a battery. The system of the present invention includes a battery charger and a plurality of series connected batteries. Each of the plurality of series connected batteries are connected in parallel with a batter

A battery voltage regulation circuit is provided for regulation the charging voltage of a battery. The system of the present invention includes a battery charger and a plurality of series connected batteries. Each of the plurality of series connected batteries are connected in parallel with a battery voltage regulator circuit. Each battery voltage regulator identifies excess battery current by using a voltage temperature compensation factor to compare the voltage of a battery to a reference voltage. A battery bypass circuit is used to remove excess battery current from a battery bath. In addition to being used in conjunction with a plurality of series connected batteries, the present invention may be used with a single charging battery to achieve the same results.

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A battery voltage regulation circuit is provided for regulation the charging voltage of a battery. The system of the present invention includes a battery charger and a plurality of series connected batteries. Each of the plurality of series connected batteries are connected in parallel with a batter

A battery voltage regulation circuit is provided for regulation the charging voltage of a battery. The system of the present invention includes a battery charger and a plurality of series connected batteries. Each of the plurality of series connected batteries are connected in parallel with a battery voltage regulator circuit. Each battery voltage regulator identifies excess battery current by using a voltage temperature compensation factor to compare the voltage of a battery to a reference voltage. A battery bypass circuit is used to remove excess battery current from a battery bath. In addition to being used in conjunction with a plurality of series connected batteries, the present invention may be used with a single charging battery to achieve the same results. trical power is derived from the external electronic device through the at least one electrical power line conductor and the charging of the battery with the received electrical power is derived from the at least one electrical power line conductor. 11. A battery operated apparatus according to claim 10, wherein: the charging circuit comprises a connector which provides an electrical connection with the electrical power supply. 12. A battery operated apparatus according to claim 11, comprising: a switch operable to disconnect the charging circuit from the electrical power supply. 13. A battery operated apparatus according to claim 12, wherein: the at least one conductor comprises a universal serial bus port. 14. A battery operated apparatus according to claim 11, wherein: the at least one conductor comprises a universal serial bus port. 15. A battery operated apparatus according to claim 10, comprising: a switch operable to disconnect the charging circuit from the electrical power supply. 16. A battery operated apparatus according to claim 15, wherein: the at least one conductor comprises a universal serial bus port. 17. A battery operated apparatus according to claim 10, wherein: the at least one conductor comprises a universal serial bus port. 18. A battery operated apparatus according to claim 1, comprising: a switch operable to disconnect the charging circuit from the electrical power supply. 19. A battery operated apparatus according to claim 18, wherein: the at least one conductor comprises a universal serial bus port. 20. A battery operated apparatus according to claim 1, wherein: the at least one conductor comprises a universal serial bus port. 21. A battery powered apparatus comprising: a charging circuit for charging a rechargeable battery; a processor which controls the battery operated apparatus and communicates with an external electronic device including an electrical power supply; at least one conductor for connection to the external electronic device which conducts data or control signals from the external electronic device when the charging circuit is charging the rechargeable battery; and wherein the charging circuit derives electrical power from the data or control signals conducted on the at least one conductor from the external electronic device for charging the rechargeable battery. 22. A battery operated apparatus according to claim 21, wherein: the charging circuit comprises means for providing electrical power from the data or control signals conducted on the at least one conductor from the external electronic device to the rechargeable battery. 23. A battery operated apparatus according to claim 22 wherein the means for obtaining electrical power comprises: at least one capacitor. 24. A battery operated apparatus according to claim 23 wherein: the at least one conductor comprises a universal serial bus port. 25. A battery operated apparatus according to claim 24 comprising: means for determining if charging the rechargeable battery using the electrical power supply of the external electronic electronics device is allowed which uses received data or control signals as a basis for the determination. 26. A battery operated apparatus according to claim 24, wherein: the at least one conductor comprises at least one electrical power line conductor and the received electrical power is derived from the external electronic device through the at least one electrical power line conductor and the charging of the battery with the received electrical power is derived from the at least one electrical power line conductor. 27. A battery operated apparatus according to claim 23 comprising: means for determining if charging the rechargeable battery using the electrical power supply of the external electronic electronics device is allowed which uses received data or control signals as a basis for the determination. 28. A battery