Portable vehicle battery jump start apparatus with safety protection
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 31, 2020
Grant Date -
Apr 26, 2018
app pub date -
Aug 31, 2017
filing date -
Aug 31, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A handheld device for jump starting a vehicle engine includes a rechargeable lithium ion battery pack (32) and a microcontroller (1). The lithium ion battery is coupled to a power output port of the device through a power switch circuit (15) actuated by the microcontroller. A vehicle battery isolation sensor (12) connected in circuit with positive and negative polarity outputs detects the presence of a vehicle battery (72) connected between the positive and negative polarity outputs. A reverse polarity sensor (10) connected in circuit with the positive and negative polarity outputs detects the polarity of a vehicle battery connected between the positive and negative polarity outputs, such that the microcontroller will enable power to be delivered from the lithium ion power pack to the output port only when a good battery is connected to the output port and only when the battery is connected with proper polarity of positive and negative terminals.
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