Importance

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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.

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First Claim