Battery charger with three different charging rates

Patent · Tue Jun 02 04:00:00 EDT 1987

OSTI ID:6517265

Williams, J W

A three level battery charging circuit is described comprising: a dual rate charging circuit connectable across the terminals of a battery to be charged and including an automatic switch means for automatically switching from a first charge rate to a second lower charge rate in response to a sensed battery voltage in excess of a first predetermined threshold voltage; a further charging circuit providing charging current at a third rate higher than the first rate and connected in parallel with the dual rate charging circuit; and control means connected to control the further charging circuit so as to switch it to active condition in response to a sensed battery voltage in excess of a second predetermined threshold voltage which is less than the first threshold.

• Assignee: General Electric Co., Lynchburg, VA
• Patent Number(s): US 4670703
• OSTI ID: 6517265
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY CHARGERS
BATTERY CHARGING
CHARGE STATE
COMPUTERIZED CONTROL SYSTEMS
CONDUCTOR DEVICES
CONNECTORS
CONTROL SYSTEMS
CURRENTS
ELECTRIC BATTERIES
ELECTRIC CONTACTS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
ELECTRODES
EQUIPMENT
SWITCHES
THRESHOLD CURRENT