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Because there may be a spark when you connect a jumper cable negative clamp to the battery post which can cause an explosion. Batteries emit hydrogen gas which is very volitive. Always connect the negative clamp to the engine or another ground point on the vehicle.
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Where to connect negative clamp when charging battery?
Negative battery or jump start post.
What hint does the author of how to jump start a car battery give for remembering that you should connect the positive clamp onto the battery before the negative clamp?
you should give positive feedback to your friend Marvin about his tuba recital before negative - apex
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How do you jump a battery in a Mercedes?
To jump a battery is exactly the same as you would jump start any other cars in the world. 1. Connect the jumper cable positive clamp (Red color) to the positive post of the dead battery. 2. Connect the jumper cable negative clamp (Black color) to the negative post of the dead battery. 3. Connect the other jumper cable positive clamp (Red color) to the positive post of a good battery. 4. Connect the other jumper cable negative clamp (Black color) to the negative post of a good battery. 5. Start your Mercedes. 6. Reverse the 1-4 steps when the car starts successfully. Note: Step 3, and 4 could be a good strong battery, or a battery on a running car. weijen_hsu@yahoo.com
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disconnect the wires starting with the negative post first. there is a clamp holding the battery down at the base of the battery in the middle of the long side. loosen the bolt and tilt the battery out.
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