You are exiting the NIH SBIR/STTR website and entering a non-federal website. External links provide additional information that is consistent with the intended purpose of this site. The NIH SBIR/STTR program cannot attest to the accuracy of information provided by these links.
When connecting your battery, connect the positive (red) first and the negative (black) second. When removing the battery, disconnect the negative (black) first and the positive (red) second. Been doing this for nearly 30 years. ALWAYS connect the positive post first.
Battery Wire Size per Voltage, Amperage Load and Length. Chart below shows Minimum cable size to use (AWG wire). Fine Stranded Stereo wire makes great battery cable giving the best gage wire for proper battery charge. The fine stranded wire will pass more amperage than course stranded wire that has a lower strand count.