| 摘要 |
The subject invention is about a portable battery jump starting device for stranded vehicle due to weaken starting battery. It is equipped with a pair of power cable connected to crocodile clips. The internal circuit of the subject invention is capable of detecting polarity at the point of connection to the external battery and is capable of compensating a wrong polarity connection. The subject invention offers automatic power on/off and a will guarantee a correction connection at any circumstance. Therefore it eliminates the risk of battery explosion due to human error.
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