Midtronics, Inc.

Interstate Battery System of America

William G Sampson

Kevin I Bertness

Stephen J McShane

Michael E Troy

Dennis V Brown

John S Philbrook

An electronic battery tester for testing a storage battery includes a Kelvin connection configured to electrically couple to the storage battery and a microprocessor configured to determine a dynamic parameter of the storage battery. A forcing function source is configured to apply a forcing function signal to the storage battery through the Kelvin connection. A sensor is electrically coupled to the storage battery and configured to sense an electrical response of the storage battery to the applied forcing function signal. A tire tread gauge is arranged to be inserted into a tread of a tire. The tire tread gauge including a visual indicator. An image capture device is configured to capture an image of the tire tread gauge when the tire tread gauge is inserted into the tread of the tire.

Tire tread gauge using visual indicator

An apparatus is provided for charging a first storage battery and a second storage battery electrically connected together in series includes a first Kelvin connection, a second Kelvin connection and a third Kelvin connection coupled to the storage batteries. At least two of the Kelvin connections are configured to charge at least one of the first and second batteries. A charging source configured to selectively couple a charge signal to a storage battery through the Kelvin connections. A switching device selectively couples the charging source and measurement circuitry to at least two of the first, second and third Kelvin connections. A microprocessor selectively controls the switching device, charges the batteries, and measures a parameter of the batteries as a function of the charging signal applied to the batteries.

System for charging a series of connected batteries

Battery maintenance equipment is provided for use in maintaining storage batteries. The battery maintenance equipment includes battery maintenance circuitry. A redemption code output is provided and configured to provide an output having a redeemable value in response to the battery maintenance circuitry. A method includes outputting a redemption code in response to usage of battery maintenance equipment.

Battery tester with promotion feature

Battery tester with promotion feature to promote use of the battery tester by providing the user with codes having redeemable value

An apparatus and method for preventing theft in automotive vehicle service centers. The apparatus includes at least one portable tool and a controller. The portable tool includes circuitry configured to communicate with the controller. The portable tool further includes anti-theft circuitry, which is configured to disable the portable tool if no communication occurs between the portable tool and the controller for a predetermined time period.

Theft prevention device for automotive vehicle service centers

An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to the system. The digital samples are stored in memory.

Automotive vehicle electrical system diagnostic device

An electronic battery tester for testing a storage battery. The battery tester provides a replacement battery output as a function of battery environment information and battery replacement information.

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Elmhurst, IL, United States of America

William G Sampson