E. coli is a gram-negative bacteria, shaped like a rod. Escherichia coli is usually found in the lower intestine of humans and present in fecal matter. Most urinary infections are caused by inadvertent transfer of fecal matter into the urethra. The E.coli present in the fecal matter, and then infect the urinary tract.
Warnings. 1  Always disconnect the negative cable or terminal first when you are working with a car battery. Failure to do so could result in electrical sparks and severe burns. 2  Metal may conduct electricity and cause severe burns.
The positive terminal will be opposite of the negative, connected to the post marked with a plus sign. Step 4: Remove the battery from the engine. Once both cables have been disconnected, remove any securing mechanism at the base or top of the battery, and then remove the battery from the engine bay.