Satellite battery reconditioning system and method
Patent 3997830 Issued on December 14, 1976. Estimated Expiration Date: 
December 14, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 14, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3454859 3522507 3740636 3796940 InventorsAssigneeApplicationNo. 527835 filed on 11/27/1974US Classes:320/102, With shuntless charging source control320/118, With discharge of cells or batteries320/131, Deep discharge (e.g., conditioning, etc.)320/152Detection of current or voltage amplitudeExaminersPrimary: Miller, J. D.Assistant: Hickey, Robert J. Attorney, Agent or FirmAbstractReduction of battery effectiveness due to memory effect and unequal cell voltages is minimized by a spacecraft power control system which reconditions the battery preferably just prior to eclipse seasons of a geo-stationary orbit by discharging each battery cell through a network of shunting resistors. Recharging is accomplished by a low power dissipation charging sequence. The load of the system, except for during the eclipse season, is receiving power continuously from the solar cells and during peak load requirements receives supplementary power from the battery cells. During the eclipse seasons, the system power is supplied solely by the battery cells.Other References
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