Patent Number: 7,786,702

Title: Battery conditioner and charger

Abstract: An apparatus for charging either a normal or a sulfated type of a storage battery includes a first charging stage, a second charging stage, and a final third charging stage. The first charging stage applies a pulsed voltage with a high peak and average voltage to the battery until an average current of about 12 amperes is attained, at which time transition into the second charging stage occurs. A pulse width modulator reduces the average voltage and average current to a safe level and continue to charge the battery for about 20 minutes. At that time transition into the third charging stage occurs wherein a low ripple 14.8 VDC steady state current-limited voltage is applied to the battery for a second duration of about four hours, after which charging is complete and the apparatus shuts itself off.

Inventors: Chait; Stanley (New York, NY), Chait; Paul Nicholas (San Rafael, CA)

Assignee:

International Classification: H02J 7/00 (20060101); H02J 7/16 (20060101); H02J 7/04 (20060101)

Expiration Date: 8/31/12018