Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1991-10-31
1994-06-07
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 39, H02J 700
Patent
active
053192982
ABSTRACT:
A current limited, voltage regulated, battery maintainer and charger apparatus includes a circuit for monitoring and maintaining a 12 volt storage battery, determining the presence of forward polarity and in response controlling the amount of charging current necessary to continuously maintain the battery in a ready state, without overcharging or causing other damage to said battery. The battery maintainer device selectively charges 12 volt lead acid, gel-cell or sealed lead acid batterys using current limitation and voltage regulation circuitry, to modulate an amount of current to maintain a voltage potential across the battery, whereby the current flow can drop to zero current flow, to maintain a constant and continuous storage battery voltage of 13.8 volts. The battery maintainer apparatus also includes a variety of safety features not ordinarily associated with a battery charger including but not limited to a circuit which shuts out charging current when reverse polarity is detected, a feature whereby current is not supplied to the output terminals until said terminals have come in contact with a storage battery of sufficient initial voltage, thus preventing the output terminals from sparking should they accidentally contact each other prior to hook-up with the storage battery. Furthermore, the battery maintainer device is designed for constant, continuous and non-supervised use on all 12 volt lead acid, gel-cell, and sealed lead acid batteries.
REFERENCES:
patent: 3919618 (1975-11-01), Coleman et al.
patent: 4021717 (1977-05-01), Furuishi et al.
patent: 4742290 (1988-05-01), Sutphin et al.
Marquez A. Gerald
Wanzong Vern
Hickey R. J.
Payne Alton W.
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