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U.S. Department of Energy
Office of Scientific and Technical Information

Variable timing circuit for motive power battery chargers

Patent ·
OSTI ID:6161608
A timing circuit for charging motive power batteries. The timing control circuit provides different times of charge in accordance with the time at which a predetermined voltage/current state of the battery is achieved. Control circuit cooperates with a controller in causing termination of the charging operation immediately upon reaching of the voltage/current state if this occurs in a first time slot of an initial control time period. The timing circuit provides an automatic finish time period of charge if the battery reaches the predetermined voltage/current state at some time during the initial control time period. The control includes a switch permitting the user to cause an automatic additional amount of charging upon completion of the normal charging cycle effected by the control, such as for effecting a weekend charge. The control further includes structure for terminating the charging operation in the event the battery being charged does not reach the predetermined voltage/current state at the end of a preselected maximum time. A signal light signals such a fault condition in the charging operation.
Assignee:
GNB Batteries Inc.
Patent Number(s):
US 4439719
OSTI ID:
6161608
Country of Publication:
United States
Language:
English

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