Battery pack having memory
First Claim
1. A method of charging a battery comprising:
- (a) supplying a charging current to a battery;
(b) measuring at least one battery parameter;
(c) determining a charging current set point based on the at least one battery parameter measured;
(d) if the charging current being applied to the battery is different from the charging current set point, adjusting the charging current being supplied to the battery to match the charging current set point; and
(e) repeating steps (b) through (d) for each of a plurality of time periods during charging.
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Accused Products
Abstract
In an exemplary embodiment, a method of charging a battery includes supplying a charging current to the battery and measuring one or more battery parameters. The battery parameters may be, for example, temperature, voltage and/or charging current. The battery parameter measured is used to determine a charging current set point. The set point may be selected from a number of different set points stored in memory, where each set point corresponds to a respective battery parameter range. If the charging current being supplied to the battery is different from the charging current set point determined the charging current is adjusted to match the set point. This process is repeated for each of a plurality of time periods (e.g., sampling periods) during charging of the battery.
261 Citations
22 Claims
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1. A method of charging a battery comprising:
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(a) supplying a charging current to a battery;
(b) measuring at least one battery parameter;
(c) determining a charging current set point based on the at least one battery parameter measured;
(d) if the charging current being applied to the battery is different from the charging current set point, adjusting the charging current being supplied to the battery to match the charging current set point; and
(e) repeating steps (b) through (d) for each of a plurality of time periods during charging. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of charging a battery comprising:
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(a) supplying a charging current to a battery;
(b) measuring the charging current supplied for each of a plurality of time periods;
(c) calculating an average charging current for each of at least a portion of the plurality of time periods; and
(d) adjusting the charging current being supplied to the battery to match the average charging current calculated for a most recent of the plurality of time periods. - View Dependent Claims (14, 15, 16)
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17. A method of charging a battery comprising:
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(a) supplying a charging current to a battery;
(b) measuring the charging current supplied for each of a plurality of time periods;
(c) calculating an average charging current for the plurality of time periods; and
(d) adjusting the charging current being supplied to the battery to match the average charging current calculated for the plurality of time periods. - View Dependent Claims (18, 19)
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20. A method of charging a battery comprising
(a) supplying a charging current to a battery (b) measuring the charging current supplied for each of a plurality of time periods; -
(c) calculating an average charging current for the plurality of time periods;
(d) adjusting the charging current being supplied to the battery to match the calculated average charging current;
(e) measuring the charging current supplied for an additional time period;
(f) recalculating an average charging current using the charging current measured for the additional time period and at least a portion of the charging currents measured during the plurality of time periods;
(g) adjusting the charging current being supplied to the battery to match the recalculated average charging current. - View Dependent Claims (21, 22)
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Specification