Apparatus for monitoring and charging electric storage battery

Patent · Tue Apr 15 04:00:00 EST 1986

OSTI ID:5606019

Sloan, A H

A charge protector is described for battery maintenance and operable to continuously monitor the battery terminal voltage of a storage battery while the latter is not in use and to control charging of the battery by controlling the supply of DC power from a battery charger to the battery in accordance with the battery terminal voltage. The battery charge protector voltage; means energizable from the battery to effect initial supply of DC power to the battery when the battery terminal voltage is sensed as being at a predetermined minimum charge voltage level; means energizable from the battery to repeatedly effect subsequent termination and resupply of DC power to the battery when the battery terminal voltage is sensed as having reached an upper trip level voltage and a lower trip level voltage, respectively, the lower trip level voltage being greater than the minimum charge voltage and the upper trip level voltage being greater than the lower trip level voltage; and timer means energizable from the battery to maintain the supply of DC power to the battery for a predetermined interval of time after the battery terminal voltage is sensed as having reached the upper trip level voltage but before it reaches a maximum charge level voltage which is greater than the upper trip level voltage.

• Assignee: NOV; EDB-86-108594
• Patent Number(s): US 4583035
• OSTI ID: 5606019
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY CHARGERS
BATTERY CHARGING
CURRENTS
DESIGN
DIRECT CURRENT
ELECTRIC BATTERIES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRONIC CIRCUITS
MAINTENANCE
MONITORING
OPERATION
TIMING CIRCUITS