View attachment 95145
"Clamp the other end of the black cable onto the engine block below and away from the “dead” battery"
"The main reason for connecting to the positive terminal on the battery first is to do with volatile gases possibly being emitted from the battery. If you connect to both terminals at the battery terminal this will usually cause some kind of spark as you first touch the cable to the terminal, whether you do positive or negative first is irrelevant. Connect the positive at the battery terminal first(no danger of a spark as a complete circuit is not formed), then connect the negative cable to a point on the chassis away from the battery, so the resulting spark is not in the area likely to be affected by any gases. that way you have ruled out the possibility of igniting the gas and have avoided any chance, however small. of an explosion."
đại khái là khi B kết nối với E qua kẹp 1 thì sẽ sinh tia lửa điện, dễ nguy cơ cháy nổ bình vì một số loại bình bay hơi Acid hoặc chất dễ cháy.
