Apparatus for charging and desulfating lead-acid batteries
AssigneeSynergistic Technologies, Inc.
InventorRobert A. Gelbman
Life of this patent
Estimating the term…
Abstract
Apparatus for charging and desulfating lead-acid batteries provides a DC electrical charging current to the battery terminals to charge the battery to a fully charged voltage during a bulk charge mode. When the battery reaches a fully charged voltage, the apparatus switches to a float charge mode where the battery voltage decreases to a float voltage less than the fully charged voltage and is maintained at this level. When the apparatus is in the float charge mode, the battery charging current is turned rapidly on and off to maintain the battery at the float voltage and to desulfate the battery. When the battery voltage drops to a predetermined value below the float voltage, the bulk charge mode is reentered.
Claims26
Apparatus for charging and desulfating a battery, said apparatus comprising:
- means for electrically connecting said apparatus to said battery;
- first electrical circuit means for connecting with a source of AC electrical power to provide DC current;
- second electrical circuit means connected in electrical circuit relationship with said first circuit means and with said connecting means for providing DC charging current to charge said battery to a first predetermined voltage;
- and
- third electrical circuit means connected in electrical circuit relationship with said first and second circuit means and with said connecting means for automatically pulsing said charging current on and off to maintain said battery at a second predetermined voltage less than said first predetermined voltage and to desulfate said battery.
A method for charging and desulfating a battery having positive and negative terminals, said method comprising the steps of:
- providing DC electrical charging current to said battery terminals to charge said battery to a first predetermined voltage;
- and
- pulsing said charging current on and off to said battery terminals to maintain said battery at a second predetermined voltage less than said first predetermined voltage and to desulfate said battery.
Dependencies are inferred from the claim text.