Method and Apparatus for Charging a Lead Acid Battery
First Claim
1. A method of operating a lead acid battery in which the battery undergoes discharging phases during which the battery is discharged and charging phases during which the battery is charged and which includesduring a discharging phase, monitoring the current flow out of and into the battery, and recording information relating to that current flow;
- during a subsequent charging phase, calculating, based upon that recorded information, a desired amount of charge to be supplied to that battery, and supplying that desired amount of charge to the battery.
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Abstract
The invention relates to a method of operating a lead acid battery which undergoes discharging phases and charging phases in a cyclical fashion. The method involves monitoring the current discharged from the battery during a discharging phase and recording information relating to that current flow, such as the charge lost from the battery. During the subsequent charging phase, a desired amount of charge to be supplied to the battery is calculated based upon the recorded information, and then supplied to the battery.
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Citations
28 Claims
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1. A method of operating a lead acid battery in which the battery undergoes discharging phases during which the battery is discharged and charging phases during which the battery is charged and which includes
during a discharging phase, monitoring the current flow out of and into the battery, and recording information relating to that current flow; during a subsequent charging phase, calculating, based upon that recorded information, a desired amount of charge to be supplied to that battery, and supplying that desired amount of charge to the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An energy storage and supply apparatus comprising:
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one or more lead acid batteries; means to monitor the current flow out of and into the or each battery during use of the or each battery; means to record information relating to the current flow out of and into the or each battery during use of the or each battery; and a charging apparatus for charging the or each battery comprising control means arranged to calculate a desired amount of charge to be supplied to the or each battery based upon the recorded information relating to the current flow out of and into the or each battery during use of the or each battery. - View Dependent Claims (22, 23, 24, 25)
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26. A charging apparatus for charging a lead acid battery comprising
a) communication means arranged to obtain information relating to the current flow out of and into the battery during use of the battery; -
b) control means arranged to calculate, based upon the information relating to the current flow out of and into the battery during use of the battery, a desired amount of charge to be supplied to the battery; and c) current supply means arranged to supply the calculated desired amount of charge to the battery. - View Dependent Claims (27, 28)
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Specification